{"id":12173,"date":"2024-10-16T22:19:32","date_gmt":"2024-10-16T20:19:32","guid":{"rendered":"https:\/\/nhkmachineryparts.com\/?p=12173"},"modified":"2025-10-21T23:13:32","modified_gmt":"2025-10-21T21:13:32","slug":"acier-inoxydable-420-contre-440","status":"publish","type":"post","link":"https:\/\/nhkmachineryparts.com\/fr\/420-vs-440-stainless-steel\/","title":{"rendered":"Acier inoxydable 420 contre 440"},"content":{"rendered":"<p><style>@media (min-width: 992px) { .liquid-row-responsive-69d0552831fa2 {padding-top:50px !important; padding-bottom:88px !important;  }  }    <\/style><section data-bg-image=\"url\" class=\"vc_row vc_custom_1712042566150 liquid-row-responsive-69d0552831fa2 liquid-row-shadowbox-69d0552831fb9 vc_row-has-fill vc_row-has-bg\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><div class=\"wpb_column vc_column_container vc_col-sm-12 liquid-column-69d0552832133\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  ><div class=\"vc_row vc_inner vc_row-fluid liquid-row-shadowbox-69d0552832219\"><div class=\"ld-container container-fluid\"><div class=\"row ld-row ld-row-inner vc_row-o-content-middle vc_row-flex\"><style>@media (min-width: 992px) { .liquid-column-responsive-69d055283232d > .vc_column-inner {padding-right:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d055283232d > .vc_column-inner {padding-right:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-8 vc_col-md-8 vc_col-xs-12 liquid-column-69d055283232c liquid-column-responsive-69d055283232d\"><div class=\"vc_column-inner \" ><div class=\"wpb_wrapper\" >\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2>420 vs. 440 Stainless Steel: A Detailed Comparison<\/h2>\n<p>Both 420 and 440 stainless steel are part of the <strong>martensitic<\/strong> family of stainless steels, known for their high hardness and wear resistance. These grades are often used for cutting tools, knives, and applications that require both strength and sharpness. However, there are key differences between them in terms of composition, properties, and common applications.<\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-4 vc_col-md-4 vc_col-xs-12 liquid-column-69d05528324b1\"><div class=\"vc_column-inner \" ><div class=\"wpb_wrapper\" ><style>.ld_button_69d0552832575.btn-icon-solid .btn-icon{background:rgba(255, 255, 255, 0);}.ld_button_69d0552832575.btn-icon-circle.btn-icon-ripple .btn-icon:before{border-color:rgba(255, 255, 255, 0);}.ld_button_69d0552832575.btn-icon-solid:hover .btn-icon{background:rgba(255, 255, 255, 0);}.ld_button_69d0552832575{color:rgb(34, 34, 34);border-color:rgba(255, 255, 255, 0);}.ld_button_69d0552832575:hover{background-color:rgba(255, 255, 255, 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class=\"lqd-modal-foot\"><\/div><!-- \/.lqd-modal-foot -->\n\n\t<\/div><!-- \/.lqd-modal-inner -->\n<\/div><!-- \/#modal-box.lqd-modal --><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section data-bg-image=\"url\" class=\"vc_row vc_custom_1711480886685 liquid-row-shadowbox-69d05528358ac vc_row-has-fill vc_row-has-bg\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><style>@media (min-width: 992px) { .liquid-column-responsive-69d0552835b4a > .vc_column-inner {margin-bottom:0px !important; padding-right:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d0552835b4a > .vc_column-inner {padding-right:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-6 vc_col-md-8 vc_col-xs-12 liquid-column-69d0552835b49 liquid-column-responsive-69d0552835b4a\"><div class=\"vc_column-inner  vc_custom_1711483264577\" ><div class=\"wpb_wrapper\"  >\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1738598784008\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><strong>Composition Differences<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Contains <strong>12-14% chromium<\/strong> and <strong>0.15-0.40% carbon<\/strong>.<\/li>\n<li>It is a lower carbon content stainless steel compared to 440, which affects its hardness and corrosion resistance.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Comes in three sub-grades: <strong>440A, 440B, and 440C<\/strong>. Each has slightly different carbon content:\n<ul>\n<li><strong>440A<\/strong>: Contains <strong>16-18% chromium<\/strong> and <strong>0.60-0.75% carbon<\/strong>.<\/li>\n<li><strong>440B<\/strong>: Contains <strong>16-18% chromium<\/strong> and <strong>0.75-0.95% carbon<\/strong>.<\/li>\n<li><strong>440C<\/strong>: Contains <strong>16-18% chromium<\/strong> and <strong>0.95-1.20% carbon<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li>The higher carbon content in 440C gives it superior hardness and wear resistance compared to 420.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/p>\n<h2><strong>Hardness and Wear Resistance<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Can be heat treated to achieve hardness between <strong>HRC 50-55<\/strong>. Its lower carbon content results in less hardness and wear resistance compared to 440C.<\/li>\n<li>Suitable for applications where toughness is more important than extreme hardness.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Can be heat treated to achieve much higher hardness, especially <strong>440C<\/strong>, which can reach up to <strong>HRC 58-60<\/strong>.<\/li>\n<li>440C, in particular, is favored for its extreme wear resistance, making it ideal for high-stress cutting applications such as knife blades and surgical instruments.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/sealed-stainless-bearing-units\/\">Sealed stainless steel 420 vs 440 bearing units<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/mounted-ball-bearing-house-units\/\">Mounted stainless steel 420 vs 440 bearing units<\/a><\/p>\n<h2><strong>Corrosion Resistance<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Offers <strong>good corrosion resistance<\/strong> in mild environments but is less resistant than 440 due to its lower chromium and carbon content. It is adequate for applications where occasional moisture or humidity exposure is expected.<\/li>\n<li>Typically used in applications where corrosion resistance is secondary to toughness, like cutlery and certain industrial tools.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li><strong>440A<\/strong> has the best corrosion resistance among the 440 grades due to its lower carbon content but is less hard than 440B and 440C.<\/li>\n<li><strong>440C<\/strong> offers slightly lower corrosion resistance compared to 440A, but it still provides excellent corrosion resistance in most environments due to its high chromium content. It can withstand exposure to moisture and mild chemicals.<\/li>\n<li>Overall, 440 stainless steel, particularly 440A, provides <strong>better corrosion resistance<\/strong> than 420, making it more suitable for applications in corrosive environments.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/p>\n<h2><strong>Applications<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Commonly used for <strong>cutlery, surgical instruments, scissors, and some knife blades<\/strong> that don\u2019t require extreme hardness but need good corrosion resistance and toughness.<\/li>\n<li>Also used for <strong>hand tools<\/strong>, <strong>pump shafts<\/strong>, and <strong>machinery parts<\/strong> where high wear resistance is not critical but some toughness is needed.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li><strong>440A<\/strong> is commonly used for <strong>cutlery, knife blades, and surgical tools<\/strong> where corrosion resistance is prioritized over hardness.<\/li>\n<li><strong>440B<\/strong> is used for <strong>cutting tools<\/strong> where higher hardness and wear resistance are required, but corrosion resistance is still important.<\/li>\n<li><strong>440C<\/strong> is the go-to material for <strong>high-end knife blades, <a href=\"https:\/\/nhkmachineryparts.com\/product-line\/sealed-stainless-bearing-units\/\">precision bearings<\/a>, and surgical instruments<\/strong> that require maximum hardness, edge retention, and wear resistance.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/sealed-stainless-bearing-units\/\">Sealed stainless steel 420 vs 440 bearing units<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/mounted-ball-bearing-house-units\/\">Mounted stainless steel 420 vs 440 bearing units<\/a><\/p>\n<h2><strong>Heat Treatment and Machinability<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Relatively easy to <strong>heat treat<\/strong> and can be hardened to moderate levels, offering a good balance between machinability and wear resistance.<\/li>\n<li><strong>Machinability<\/strong> is better than 440C, but the lower hardness means it is less suited for applications requiring extreme wear resistance.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li><strong>440C<\/strong> is more challenging to machine due to its high hardness after heat treatment, but it offers excellent results for applications requiring wear resistance and edge retention.<\/li>\n<li><strong>Heat treatment<\/strong> is critical to achieving optimal hardness, especially for 440C, which can be hardened to very high levels but must be carefully tempered to avoid brittleness.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/p>\n<h2><strong>Cost<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Generally <strong>less expensive<\/strong> than 440 due to its lower carbon content and less complex heat treatment requirements. It is often used in lower-cost items that still require stainless steel properties.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li><strong>440A<\/strong> is less expensive than <strong>440C<\/strong>, but <strong>440C<\/strong> is more expensive due to its higher carbon content and the superior hardness it can achieve. The higher cost is justified in applications requiring extreme wear resistance and durability, such as high-quality knife blades and tools.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/sealed-stainless-bearing-units\/\">Sealed stainless steel 420 vs 440 bearing units<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/mounted-ball-bearing-house-units\/\">Mounted stainless steel 420 vs 440 bearing units<\/a><\/p>\n<h2><strong>Strength and Toughness<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Known for its <strong>toughness<\/strong>, making it more resistant to impact than the harder 440C. However, this comes at the cost of hardness and wear resistance.<\/li>\n<li>It is more forgiving in applications where the material may be subjected to sudden impacts or stresses.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Particularly <strong>440C<\/strong>, offers superior <strong>hardness and strength<\/strong> but is more brittle and less tough than 420. It is ideal for applications where edge retention and wear resistance are critical, but not for those requiring high impact resistance.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/p>\n<h2><strong>Summary of Key Differences<\/strong><\/h2>\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th><strong>420 Stainless Steel<\/strong><\/th>\n<th><strong>440 Stainless Steel<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Carbon Content<\/strong><\/td>\n<td>0.15-0.40%<\/td>\n<td>0.60-1.20% (depending on sub-grade)<\/td>\n<\/tr>\n<tr>\n<td><strong>Chromium Content<\/strong><\/td>\n<td>12-14%<\/td>\n<td>16-18%<\/td>\n<\/tr>\n<tr>\n<td><strong>Hardness<\/strong><\/td>\n<td>Up to HRC 55 (with heat treatment)<\/td>\n<td>Up to HRC 60 (especially 440C)<\/td>\n<\/tr>\n<tr>\n<td><strong>Wear Resistance<\/strong><\/td>\n<td>Moderate<\/td>\n<td>Excellent, especially in 440C<\/td>\n<\/tr>\n<tr>\n<td><strong>Corrosion Resistance<\/strong><\/td>\n<td>Good<\/td>\n<td>Excellent (best in 440A, slightly lower in 440C)<\/td>\n<\/tr>\n<tr>\n<td><strong>Applications<\/strong><\/td>\n<td>Cutlery, hand tools, pump shafts, industrial tools<\/td>\n<td>Knife blades, precision tools, surgical instruments, <a href=\"https:\/\/nhkmachineryparts.com\/product-line\/ip67-waterproof-bearing-house-units\/\">bearings<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Cost<\/strong><\/td>\n<td>Lower cost<\/td>\n<td>Higher cost, especially 440C<\/td>\n<\/tr>\n<tr>\n<td><strong>Toughness<\/strong><\/td>\n<td>Better impact resistance<\/td>\n<td>Harder but less tough, more brittle<\/td>\n<\/tr>\n<tr>\n<td><strong>Machinability<\/strong><\/td>\n<td>Easier to machine<\/td>\n<td>More difficult, especially 440C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/sealed-stainless-bearing-units\/\">Sealed stainless steel 420 vs 440 bearing units<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/mounted-ball-bearing-house-units\/\">Mounted stainless steel 420 vs 440 bearing units<\/a><\/p>\n<h2>Difference between 420 and 440 stainless steel<\/h2>\n<p>The choice between 420 and 440 stainless steel depends on the specific requirements of the application. <strong>420 stainless steel<\/strong> offers better toughness and is easier to machine, making it a good choice for general-purpose tools, cutlery, and components that require moderate wear resistance. On the other hand, <strong>440 stainless steel<\/strong>, particularly <strong>440C<\/strong>, excels in applications where extreme hardness, edge retention, and wear resistance are crucial, such as high-quality knife blades, <a href=\"https:\/\/nhkmachineryparts.com\/product-line\/sealed-stainless-bearing-units\/\">bearings<\/a>, and surgical instruments.<\/p>\n<p>If corrosion resistance is a priority but hardness isn&#8217;t as important, <strong>440A<\/strong> might be a better choice than 420. However, if maximum hardness and wear resistance are needed, <strong>440C<\/strong> is the superior option, despite its higher cost and more challenging machinability.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1727029145317\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2>Questions and contact<\/h2>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/contact\/\">Contact us for hygienic solution<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><style>@media (min-width: 992px) { .liquid-column-responsive-69d05528361d0 > .vc_column-inner {padding-left:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d05528361d0 > .vc_column-inner {padding-left:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-6 vc_col-md-4 vc_col-xs-12 liquid-column-69d05528361ce liquid-column-responsive-69d05528361d0\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_  liquid_vc_single_image-69d05528366ae\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   \"><img loading=\"lazy\" decoding=\"async\" width=\"1271\" height=\"1271\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/440-Stainless-Steel-tubes-and-bars-2.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"440 Stainless Steel tubes and bars\" title=\"440 Stainless Steel tubes and bars\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/440-Stainless-Steel-tubes-and-bars-2.jpg 1271w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/440-Stainless-Steel-tubes-and-bars-2-1000x1000.jpg 1000w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/440-Stainless-Steel-tubes-and-bars-2-300x300.jpg 300w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/440-Stainless-Steel-tubes-and-bars-2-12x12.jpg 12w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/440-Stainless-Steel-tubes-and-bars-2-320x320.jpg 320w\" sizes=\"auto, (max-width: 1271px) 100vw, 1271px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_  liquid_vc_single_image-69d055283698f\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   \"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/420-Stainless-Steel-tubes-and-bars-1.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"420 Stainless Steel tubes and bars\" title=\"420 Stainless Steel tubes and bars\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/420-Stainless-Steel-tubes-and-bars-1.jpg 1000w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/420-Stainless-Steel-tubes-and-bars-1-300x300.jpg 300w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/420-Stainless-Steel-tubes-and-bars-1-12x12.jpg 12w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/420-Stainless-Steel-tubes-and-bars-1-320x320.jpg 320w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/section><section class=\"vc_row vc_custom_1711481063069 liquid-row-shadowbox-69d0552836b53\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><div class=\"wpb_column vc_column_container vc_col-sm-12 liquid-column-69d0552836d46\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  >\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1761081207150\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 data-start=\"507\" data-end=\"567\">Expertise de NHK Machinery Parts en aciers inoxydables<\/h2>\n<p data-start=\"569\" data-end=\"990\">Chez <strong data-start=\"574\" data-end=\"597\"><a href=\"https:\/\/nhkmachineryparts.com\/fr\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"NHK Machinery Parts\">NHK Machinery Parts<\/a><\/strong>, nous mettons notre expertise au service de chaque client afin de proposer <strong data-start=\"673\" data-end=\"713\">le bon acier pour chaque application<\/strong>. Gr\u00e2ce \u00e0 une connaissance approfondie des nuances <strong data-start=\"764\" data-end=\"771\">420<\/strong>, <strong data-start=\"773\" data-end=\"781\">440A<\/strong>, <strong data-start=\"783\" data-end=\"791\">440C<\/strong> et \u00e9quivalentes europ\u00e9ennes comme <strong data-start=\"826\" data-end=\"837\">X20Cr13<\/strong>, <strong data-start=\"839\" data-end=\"849\">Z20C13<\/strong> ou <strong data-start=\"853\" data-end=\"863\">1.4006<\/strong>, nous garantissons une combinaison optimale entre <strong data-start=\"914\" data-end=\"938\">r\u00e9sistance m\u00e9canique<\/strong>, <strong data-start=\"940\" data-end=\"950\">duret\u00e9<\/strong>, et <strong data-start=\"955\" data-end=\"989\">protection contre la corrosion<\/strong>.<\/p>\n<p data-start=\"992\" data-end=\"1222\">Notre \u00e9quipe technique vous accompagne dans le choix du mat\u00e9riau le plus adapt\u00e9 \u00e0 vos besoins industriels \u2014 qu\u2019il s\u2019agisse de <strong data-start=\"1118\" data-end=\"1152\">pi\u00e8ces m\u00e9caniques de pr\u00e9cision<\/strong>, de <strong data-start=\"1157\" data-end=\"1169\">couteaux<\/strong>, ou d\u2019<strong data-start=\"1176\" data-end=\"1221\">\u00e9l\u00e9ments soumis \u00e0 l\u2019usure et \u00e0 la chaleur<\/strong>.<\/p>\n<h2 data-start=\"1229\" data-end=\"1283\">Acier inoxydable 420 : robustesse et polyvalence<\/h2>\n<p data-start=\"1285\" data-end=\"1536\">L\u2019<strong data-start=\"1287\" data-end=\"1311\">acier inoxydable 420<\/strong> (ou <strong data-start=\"1316\" data-end=\"1327\">X20Cr13<\/strong>) est reconnu pour sa <strong data-start=\"1349\" data-end=\"1384\">bonne r\u00e9sistance \u00e0 la corrosion<\/strong> et sa <strong data-start=\"1391\" data-end=\"1416\">facilit\u00e9 de polissage<\/strong>. Il est couramment utilis\u00e9 pour les <strong data-start=\"1453\" data-end=\"1472\">outils de coupe<\/strong>, les <strong data-start=\"1478\" data-end=\"1504\">composants de machines<\/strong>, et les <strong data-start=\"1513\" data-end=\"1535\">pi\u00e8ces d\u00e9coratives<\/strong>.<\/p>\n<p data-start=\"1538\" data-end=\"1788\">NHK Machinery Parts conseille souvent l\u2019acier 420 lorsqu\u2019un <strong data-start=\"1598\" data-end=\"1636\">\u00e9quilibre entre r\u00e9sistance et co\u00fbt<\/strong> est recherch\u00e9. Gr\u00e2ce \u00e0 sa structure martensitique, il peut \u00eatre <strong data-start=\"1701\" data-end=\"1711\">tremp\u00e9<\/strong> pour atteindre une duret\u00e9 \u00e9lev\u00e9e, id\u00e9ale pour les usages m\u00e9caniques mod\u00e9r\u00e9s.<\/p>\n<h2 data-start=\"1917\" data-end=\"1980\">Acier inoxydable 440A et 440C : performance et durabilit\u00e9<\/h2>\n<p data-start=\"1982\" data-end=\"2163\">Les aciers <strong data-start=\"1993\" data-end=\"2001\">440A<\/strong>, <strong data-start=\"2003\" data-end=\"2011\">440B<\/strong> et <strong data-start=\"2015\" data-end=\"2023\">440C<\/strong> se distinguent par leur <strong data-start=\"2048\" data-end=\"2080\">plus forte teneur en carbone<\/strong>, leur conf\u00e9rant une <strong data-start=\"2101\" data-end=\"2121\">meilleure duret\u00e9<\/strong> et une <strong data-start=\"2129\" data-end=\"2160\">r\u00e9sistance accrue \u00e0 l\u2019usure<\/strong>.<\/p>\n<ul data-start=\"2164\" data-end=\"2366\">\n<li data-start=\"2164\" data-end=\"2231\">\n<p data-start=\"2166\" data-end=\"2231\"><strong data-start=\"2166\" data-end=\"2174\">440A<\/strong> : compromis entre r\u00e9sistance \u00e0 la corrosion et duret\u00e9.<\/p>\n<\/li>\n<li data-start=\"2232\" data-end=\"2366\">\n<p data-start=\"2234\" data-end=\"2366\"><strong data-start=\"2234\" data-end=\"2242\">440C<\/strong> : tr\u00e8s haute duret\u00e9 apr\u00e8s trempe (jusqu\u2019\u00e0 60 HRC), id\u00e9ale pour les <strong data-start=\"2310\" data-end=\"2334\">couteaux industriels<\/strong> et <strong data-start=\"2338\" data-end=\"2365\">roulements de pr\u00e9cision<\/strong>.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2368\" data-end=\"2559\">Chez NHK Machinery Parts, nous fournissons ces nuances selon les <strong data-start=\"2433\" data-end=\"2475\">normes internationales (AISI, DIN, EN)<\/strong> et proposons des conseils personnalis\u00e9s selon la <strong data-start=\"2525\" data-end=\"2558\">destination finale du produit<\/strong>.<\/p>\n<h2 data-start=\"2566\" data-end=\"2616\">Comparatif 420 vs 440 : quel acier choisir ?<\/h2>\n<p data-start=\"2618\" data-end=\"2695\">Le choix entre l\u2019acier <strong data-start=\"2641\" data-end=\"2648\">420<\/strong> et l\u2019acier <strong data-start=\"2660\" data-end=\"2667\">440<\/strong> d\u00e9pend de vos priorit\u00e9s :<\/p>\n<ul data-start=\"2696\" data-end=\"2856\">\n<li data-start=\"2696\" data-end=\"2780\">\n<p data-start=\"2698\" data-end=\"2780\">Pour une <strong data-start=\"2707\" data-end=\"2736\">r\u00e9sistance \u00e0 la corrosion<\/strong> suffisante et un co\u00fbt abordable \u2192 <strong data-start=\"2771\" data-end=\"2778\">420<\/strong><\/p>\n<\/li>\n<li data-start=\"2781\" data-end=\"2856\">\n<p data-start=\"2783\" data-end=\"2856\">Pour une <strong data-start=\"2792\" data-end=\"2811\">duret\u00e9 maximale<\/strong> et une <strong data-start=\"2819\" data-end=\"2845\">dur\u00e9e de vie prolong\u00e9e<\/strong> \u2192 <strong data-start=\"2848\" data-end=\"2856\">440C<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2858\" data-end=\"3045\">Nos experts NHK vous orientent toujours vers <strong data-start=\"2903\" data-end=\"2972\">le mat\u00e9riau le plus appropri\u00e9 \u00e0 votre environnement d\u2019utilisation<\/strong>, en tenant compte des contraintes de <strong data-start=\"3010\" data-end=\"3044\">temp\u00e9rature, humidit\u00e9 et usure<\/strong>.<\/p>\n<h2 data-start=\"3213\" data-end=\"3267\">\ud83e\uddf0 Conseils, assistance et approvisionnement fiable<\/h2>\n<p data-start=\"3269\" data-end=\"3338\">NHK Machinery Parts ne se limite pas \u00e0 la fourniture de mat\u00e9riaux :<\/p>\n<ul data-start=\"3339\" data-end=\"3519\">\n<li data-start=\"3339\" data-end=\"3386\">\n<p data-start=\"3341\" data-end=\"3386\">Nous <strong data-start=\"3346\" data-end=\"3382\">analysons vos besoins techniques<\/strong> ;<\/p>\n<\/li>\n<li data-start=\"3387\" data-end=\"3439\">\n<p data-start=\"3389\" data-end=\"3439\">Nous <strong data-start=\"3394\" data-end=\"3435\">recommandons la nuance d\u2019acier id\u00e9ale<\/strong> ;<\/p>\n<\/li>\n<li data-start=\"3440\" data-end=\"3519\">\n<p data-start=\"3442\" data-end=\"3519\">Nous <strong data-start=\"3447\" data-end=\"3518\">assurons un approvisionnement rapide et conforme aux sp\u00e9cifications<\/strong>.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3521\" data-end=\"3673\">Chaque livraison est accompagn\u00e9e de <strong data-start=\"3557\" data-end=\"3580\">certificats mati\u00e8re<\/strong> et de <strong data-start=\"3587\" data-end=\"3618\">donn\u00e9es techniques pr\u00e9cises<\/strong>, garantissant la tra\u00e7abilit\u00e9 et la qualit\u00e9 du produit.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2>Contact<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<style>.ld_cf7_69d0552837075 input,.ld_cf7_69d0552837075 textarea,.ld_cf7_69d0552837075 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class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Name*\" value=\"\" type=\"text\" name=\"text-902\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"email-899\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Your email*\" value=\"\" type=\"email\" name=\"email-899\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"tel-828\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel\" aria-invalid=\"false\" placeholder=\"Phone\" value=\"\" type=\"tel\" name=\"tel-828\" \/><\/span><span class=\"wpcf7-form-control-wrap\" data-name=\"textarea-529\"><textarea cols=\"10\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Message*\" name=\"textarea-529\"><\/textarea><\/span><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send message\" \/>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/section><style>@media (min-width: 992px) { .liquid-row-responsive-69d05528376d9 {padding-top:80px !important; padding-bottom:80px !important;  }  }    <\/style><section class=\"vc_row vc_custom_1712043273083 liquid-row-responsive-69d05528376d9 liquid-row-shadowbox-69d05528376f2\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><div class=\"wpb_column vc_column_container vc_col-sm-12 liquid-column-69d0552837887\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  ><div  class=\"lqd-simple-heading-wrap ld_simple_heading_69d0552837933\">\n<h2 class=\"lqd-simple-heading\">\n\t<\/p>\n<h2>Articles<\/h2>\n<p><\/h2>\n<\/div><style>.ld_blog_69d0552837a47 .lqd-lp-row{margin-inline-start:-15px;margin-inline-end:-15px;}.ld_blog_69d0552837a47 .lqd-lp-column{padding-inline-start:15px;padding-inline-end:15px;margin-bottom:30px;}.ld_blog_69d0552837a47 .lqd-lp .lqd-lp-title{margin-top:px !important;margin-bottom:px !important;}.ld_blog_69d0552837a47 .lqd-lp .lqd-lp-title a{color:rgb(34, 34, 34);}.ld_blog_69d0552837a47 .lqd-lp:hover .lqd-lp-title a{color:rgb(34, 34, 34);}.ld_blog_69d0552837a47 .lqd-lp .lqd-lp-content-bg, .ld_blog_69d0552837a47 .lqd-lp .lqd-lp-img .lqd-overlay{background:rgba(0, 0, 0, 0.3);}<\/style><div class=\"lqd-lp-grid ld_blog_69d0552837a47 lqd-1711481130217-352addb9-deb8 \"><div class=\"lqd-lp-row row d-flex flex-wrap\"><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39202\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39202 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Next-Generation-Stainless-Steel-Comparing-420-vs-440-Stainless-Steel-tubes-and-bars-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Next-Generation Stainless Steel Comparing 420 vs 440 Stainless Steel tubes and bars\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-30T14:21:23+02:00\">30. mars 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/aisi-440c-stainless-steel-vs-hardened-aisi-420\/\" rel=\"bookmark\">AISI 440C stainless steel vs hardened AISI 420<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/aisi-440c-stainless-steel-vs-hardened-aisi-420\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39049\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39049 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/10\/Enhancing-Hygiene-in-Cereal-and-Grain-Processing-A-Focus-on-Hygienic-Machinery-Components-and-Sanitary-Conveyor-Parts-1-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Enhancing Hygiene in Cereal and Grain Processing A Focus on Hygienic Machinery Components and Sanitary Conveyor Parts\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:28:46+02:00\">22. mars 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/3-a-ssi-authorized-standard-sanitary-conveyor-components\/\" rel=\"bookmark\">3-A SSI Authorized Standard Sanitary Conveyor Components<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/3-a-ssi-authorized-standard-sanitary-conveyor-components\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39047\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39047 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/08\/NHK-5-700x450.png\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Authorized Standard Components: Built for Hygienic Performance, Compliance, and Long-Term Trust\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:16:27+02:00\">22. mars 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/3-a-ssi-authorized-standard-components\/\" rel=\"bookmark\">3-A SSI Authorized Standard Components<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/3-a-ssi-authorized-standard-components\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39043\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39043 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/08\/IP67-bearing-units--700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"3-A SSI composite bearing units\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:03:44+02:00\">22. mars 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/3-a-ssi-ip69k-block-bearing-units\/\" rel=\"bookmark\">3-A SSI IP69K Block Bearing Units<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/3-a-ssi-ip69k-block-bearing-units\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-37980\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-37980 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/01\/Pillow-Block-vs-Flange-Bearing-comparison-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Pillow Block vs Flange Bearing comparison\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-01-10T19:24:04+02:00\">10. janvier 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/pillow-block-vs-flange-bearing-comparison\/\" rel=\"bookmark\">Pillow Block vs Flange Bearing Comparison<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/pillow-block-vs-flange-bearing-comparison\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-37961\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-37961 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/01\/Pillow-block-vs-flange-bearing-explained-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Pillow block vs flange bearing explained\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-01-10T17:12:36+02:00\">10. janvier 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/pillow-block-vs-flange-bearing-explained\/\" rel=\"bookmark\">Pillow block vs flange bearing explained<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/pillow-block-vs-flange-bearing-explained\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-35848\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-35848 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/02\/Top-Quality-EHEDG-Certified-Components-Unmatched-Quality-and-Innovation-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Top Quality EHEDG Certified Components Unmatched Quality and Innovation\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2025-10-17T09:57:17+02:00\">17. octobre 2025<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-design-of-equipment-in-food-processing-2\/\" rel=\"bookmark\">Hygienic Design of Equipment in Food Processing<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-design-of-equipment-in-food-processing-2\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-35536\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-35536 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment tag-certified-components\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/09\/NHK-9-700x450.png\" class=\"w-100 wp-post-image\" alt=\"Components for packaging machinery\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2025-09-21T19:50:32+02:00\">21. septembre 2025<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/components-for-packaging-machinery\/\" rel=\"bookmark\">The True Cost of Downtime: Are Your Packaging Machine Components a Ticking Time Bomb?<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/components-for-packaging-machinery\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-35531\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-35531 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment tag-certified-components\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/09\/NHK-8-700x450.png\" class=\"w-100 wp-post-image\" alt=\"Hygienic components for liquid processing\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2025-09-21T17:57:26+02:00\">21. septembre 2025<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-components-liquid-processing\/\" rel=\"bookmark\">Liquid Processing Equipment: Hidden Contamination Sources in Machine Components<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-components-liquid-processing\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-35524\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-35524 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment tag-certified-components\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/09\/NHK-7-1-700x450.png\" class=\"w-100 wp-post-image\" alt=\"Hygienic components for food preserving\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2025-09-21T17:10:33+02:00\">21. septembre 2025<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-components-food-preserving\/\" rel=\"bookmark\">The Unseen Corrosive Threat in Food Preserving: Are Your Machine Components Failing Silently?<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-components-food-preserving\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-35519\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-35519 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment tag-certified-components\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" 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justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2025-09-21T14:51:41+02:00\">21. septembre 2025<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-components-dairy-industry\/\" rel=\"bookmark\">The Unseen Threat in Your Dairy: Are Your Machine Components Compromising Food Safety?<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/fr\/hygienic-components-dairy-industry\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><\/div><!--\/ .row --><\/div><!--\/ .lqd-lp-grid --><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"In the dairy industry, there is zero tolerance for error when it comes to hygiene. Your facility is a high-stakes environment where maintaining the absolute purity of your products\u2014from milk and cheese to yogurt and ice cream\u2014is the cornerstone of your brand. However, from our extensive experience at\u00a0NHK Group, we know that even the most [...]","protected":false},"author":3,"featured_media":12176,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12173","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-food-processing-and-pharmaceutical-equipment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>420 vs 440 Stainless Steel | NHK Machinery Parts<\/title>\n<meta name=\"description\" content=\"420 stainless steel offers toughness, on the other hand, 440 stainless steel extreme hardness and wear resistance are crucial for bearings\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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