{"id":196675,"date":"2026-06-23T17:37:28","date_gmt":"2026-06-23T15:37:28","guid":{"rendered":"https:\/\/www.kleinmetals.ch\/produkt\/chronifer-m-4028-2\/"},"modified":"2026-07-30T12:03:54","modified_gmt":"2026-07-30T10:03:54","slug":"chronifer-m-4028","status":"publish","type":"product","link":"https:\/\/www.kleinmetals.ch\/en\/produkt\/chronifer-m-4028\/","title":{"rendered":"CHRONIFER M-4028"},"content":{"rendered":"<p><strong>Brief description<\/strong><\/p>\n<table border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Klein designation:<\/td>\n<td>CHRONIFER M-4028<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\">Class of steels:<\/td>\n<td>1.4028\/AISI 420B\u2013Martensitic stainless steel<\/td>\n<\/tr>\n<tr>\n<td>Material number:<\/td>\n<td>1.4028<\/td>\n<\/tr>\n<tr>\n<td>Standard UNS:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>RoHS 2 \u2013 2011\/65\/EU:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Machinability:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Hardening capability:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Forming:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Cold working hardening:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Polishing ability:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\">Magnetism:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\">Corrosion resistance:<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\">Uses:<\/td>\n<td>The CHRONIFER\u00ae M-4028 is well adapted for medical, surgical and dental instruments. It is also used in various industries for the production of gears, bolts and nuts, screws as well as for tablewares.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Brief description Klein designation: CHRONIFER M-4028 Class of steels: 1.4028\/AISI 420B\u2013Martensitic stainless steel Material number: 1.4028 Standard UNS: RoHS  [&#8230;]<\/p>\n","protected":false},"featured_media":61368,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[839,851,837,845,857],"product_tag":[],"class_list":["post-196675","product","type-product","status-publish","has-post-thumbnail","product_cat-instruments","product_cat-martensitic","product_cat-medical-steel","product_cat-stainless-steel","product_cat-tubes","pa_ausfuehrung-drawn","pa_ausfuehrung-ground","pa_ausfuehrung-2-bars-3m","pa_ausfuehrung-2-in-spools","pa_ausfuehrung-2-special-length","pa_ausfuehrung-2-tubes","pa_durchmesser-1-000","pa_durchmesser-1-200","pa_durchmesser-1-400","pa_durchmesser-1-500","pa_durchmesser-1-600","pa_durchmesser-1-700","pa_durchmesser-1-800","pa_durchmesser-10-000","pa_durchmesser-11-000","pa_durchmesser-12-000","pa_durchmesser-12-700","pa_durchmesser-13-000","pa_durchmesser-14-000","pa_durchmesser-15-000","pa_durchmesser-16-000","pa_durchmesser-18-000","pa_durchmesser-19-000","pa_durchmesser-2-000","pa_durchmesser-2-100","pa_durchmesser-2-300","pa_durchmesser-2-450","pa_durchmesser-2-500","pa_durchmesser-2-700","pa_durchmesser-20-000","pa_durchmesser-22-000","pa_durchmesser-23-000","pa_durchmesser-24-000","pa_durchmesser-25-000","pa_durchmesser-25-400","pa_durchmesser-26-000","pa_durchmesser-28-000","pa_durchmesser-3-000","pa_durchmesser-3-175","pa_durchmesser-3-200","pa_durchmesser-3-300","pa_durchmesser-3-500","pa_durchmesser-30-000","pa_durchmesser-31-750","pa_durchmesser-35-000","pa_durchmesser-38-100","pa_durchmesser-4-000","pa_durchmesser-4-500","pa_durchmesser-4-760","pa_durchmesser-40-000","pa_durchmesser-5-000","pa_durchmesser-5-490","pa_durchmesser-6-000","pa_durchmesser-6-350","pa_durchmesser-7-000","pa_durchmesser-8-000","pa_durchmesser-9-000","pa_durchmesser-9-530","pa_toleranz-fg-6-en","pa_toleranz-fg-7-en","pa_toleranz-h-6-en","pa_toleranz-h-7-en","pa_toleranz-h-8-en","pa_toleranz-spec-en","first","instock","purchasable","product-type-variable"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>buy CHRONIFER M-4028 - L.Klein SA - Premium Steel and Metals<\/title>\n<meta name=\"description\" content=\"CHRONIFER M-4028 from Kleinmetals \u2013 premium Product. 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