{"id":2076,"date":"2022-05-12T04:30:03","date_gmt":"2022-05-12T04:30:03","guid":{"rendered":"https:\/\/skylinepipes.com\/?p=2076"},"modified":"2025-06-25T09:57:37","modified_gmt":"2025-06-25T09:57:37","slug":"42crmo4-heat-treatment-and-hardness","status":"publish","type":"post","link":"https:\/\/skylinepipes.com\/es\/42crmo4-heat-treatment-and-hardness\/","title":{"rendered":"What is Material AISI 4140\/4142, DIN 41CrMo4\/42CrMo4\u00a0Heat Treatment Process and Hardness Property"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>A brief introduction to 42CRMO4 material<\/strong><\/h2>\n\n\n\n<p class=\"\">42CrMo steel is an ultra-high strength steel with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low temperature impact toughness. 42CrMo steel is suitable for manufacturing products that require certain strength and toughness. 42CrMo steel is also well known as AISI 4140\/4142 also.<\/p>\n\n\n\n<div class=\"\"><p>42CrMo steel has superior low temperature performance, material 42CrMo can pass the -60\u00b0C impact test, while general ST52 can only pass the -20\u00b0C impact test according to standard DIN 2391 (EN 10305-1), if it need higher low temperature performance, it will need to use 42CrMo.<\/p><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2022\/02\/chrome-plated-shafts-chrome-plated-shafting.jpg?resize=895%2C399&amp;ssl=1\" alt=\"\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Equivalent&nbsp;International Standards&nbsp;for 42CrMo steel<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Country <\/strong><strong><\/strong><\/td><td><strong>Standard<\/strong><strong><\/strong><\/td><\/tr><tr><td>China<\/td><td>42CrMo<\/td><\/tr><tr><td>Belarus<\/td><td>\u0413OCT 38XM<\/td><\/tr><tr><td>American&nbsp;<\/td><td>AISI 4140\/4142<\/td><\/tr><tr><td>UK<\/td><td>BS 708M40\/708A42\/709M40<\/td><\/tr><tr><td>French&nbsp;<\/td><td>NF 40CD4\/42CD4<\/td><\/tr><tr><td>German<\/td><td>DIN 41CrMo4\/42CrMo4<\/td><\/tr><tr><td>Japan&nbsp;<\/td><td>JIS SCM4<\/td><\/tr><tr><td>International&nbsp;<\/td><td>ISO 683\/1 3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>42CrMo Heat Treatment Process and Hardness Property\uff1a<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"\">Annealing annealing No.1 &#8220;760\u00b110\u2103 annealing, furnace cooling to 400\u2103 air cooling, Hardness HB220-230<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.5 840\u00b110\u2103 quenching water or oil (depending on the complexity of the product shape), tempering at 680-700 degrees. Hardness HB&lt;217<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.6 840\u00b110\u2103 quenching oil, and then 470 degree tempering treatment, Hardness HRC41-45.<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.7 quenching oil at 840\u00b110\u2103, and then tempering at 480\u2103. , Hardness HRC35-45.<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.8 quenching oil at 850\u2103, then tempering at 510\u2103, Hardness HRC38-42.<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.9 quenching oil at 850\u2103, and then tempering at 500\u2103,Hardness &nbsp;HRC40-43.<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.10 quenching oil at 850\u2103, and then tempering at 510\u2103, Hardness HRC36-42.<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.11 850 \u2103 quenching oil, and then 560 \u2103 tempering treatment, Hardness HRC32-36.<\/p>\n\n\n\n<p class=\"\">Quenching+tempering No.12 Oil quenching at 860\u00b0C, and then tempering at 390\u00b0C,&nbsp;Hardness &nbsp;HRC48-52.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Applications:<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"\">42CrMo is widely used in the production of <a href=\"https:\/\/skylinepipes.com\/es\/honed-tube\/\">honed pipe<\/a>, <a href=\"https:\/\/skylinepipes.com\/es\/chrome-plated-bar-hydraulic-piston-rod\/\">chrome plated rods<\/a> and other hydraulic cylinder parts, especially in the hydraulic system under low temperature working environment, which is widely used in Siberia, Belarus.<\/p>\n\n\n\n<p class=\"\">Here below is our product range of the 42CrMo \/AISI 4140\/4142 steel.<\/p>\n\n\n\n<p class=\"\"><a href=\"https:\/\/skylinepipes.com\/es\/4140-chrome-plated-rod\/\">42CrMo \/ 4140 Chrome Plated Rod<\/a><\/p>\n\n\n\n<p class=\"\"><a href=\"https:\/\/skylinepipes.com\/es\/chrome-plated-tubes-hollow-bars\/\">42CrMo \/4140 Chrome Plated Tubing<\/a><\/p>\n\n\n\n<p class=\"\"><a href=\"https:\/\/skylinepipes.com\/es\/chrome-plate-shafts\/\">42CrMo \/ 4140 Hard Chrome Plate Shafts<\/a><\/p>\n\n\n\n<p class=\"\"><a href=\"https:\/\/skylinepipes.com\/es\/honed-tube\/\">42CrMo \/ 4140 Honed tubes<\/a><\/p>\n\n\n\n<p class=\"\">Contact us to get a quote and more details.<\/p>\n\n\n\n<div class=\"\"><\/div>","protected":false},"excerpt":{"rendered":"<p>A brief introduction to 42CRMO4 material 42CrMo steel is an ultra-high strength steel with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low temperature impact toughness. 42CrMo steel is suitable for manufacturing products that require certain strength and toughness. &#8230; <a title=\"What is Material AISI 4140\/4142, DIN 41CrMo4\/42CrMo4\u00a0Heat Treatment Process and Hardness Property\" class=\"read-more\" href=\"https:\/\/skylinepipes.com\/es\/42crmo4-heat-treatment-and-hardness\/\" aria-label=\"Leer m\u00e1s sobre What is Material AISI 4140\/4142, DIN 41CrMo4\/42CrMo4\u00a0Heat Treatment Process and Hardness Property\">Leer m\u00e1s<\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[2],"tags":[],"class_list":["post-2076","post","type-post","status-publish","format-standard","hentry","category-articles-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9PcUV-xu","jetpack-related-posts":[{"id":2390,"url":"https:\/\/skylinepipes.com\/es\/what-are-the-materials-available-for-chrome-plated-rods\/","url_meta":{"origin":2076,"position":0},"title":"What are the materials available for chrome plated rods?","author":"admin","date":"agosto 17, 2022","format":false,"excerpt":"Chrome plated rods are the chief part of the hydraulic piston rods & penumatic Piston rods, which are widely applied in many industries, especially in the machinery industry, where almost all products are used.\u00a0It is precisely because of the wide application of chrome plated rods that people pay more and\u2026","rel":"","context":"En \u00abChrome Plated Bar\u00bb","block_context":{"text":"Chrome Plated Bar","link":"https:\/\/skylinepipes.com\/es\/articles-news\/chrome-plated-bar\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":13409,"url":"https:\/\/skylinepipes.com\/es\/honed-tube-material-selection-guide-balancing-strength-precision-and-surface-quality\/","url_meta":{"origin":2076,"position":1},"title":"Honed Tube Material Selection Guide: Balancing Strength, Precision, and Surface Quality\u200b","author":"admin","date":"abril 17, 2025","format":false,"excerpt":"\u200b\u200bIntroduction: Key Factors Affecting Honed Tube Performance\u200b\u200b As critical component in hydraulic cylinders, honed tube must meet three essential performance criteria: \u200b\u200bMaterial integrity\u200b\u200b (chemical composition & heat treatment) \u200b\u200bDimensional accuracy\u200b\u200b (ID tolerance typically \u00b10.025mm) \u200b\u200bSurface finish\u200b\u200b (Ra 0.2\u20130.4 \u03bcm for optimal sealing) While surface roughness (Ra) often receives primary attention,\u2026","rel":"","context":"En \u00abHoned Cylinder Tubes\u00bb","block_context":{"text":"Honed Cylinder Tubes","link":"https:\/\/skylinepipes.com\/es\/articles-news\/honed-cylinder-tubes\/"},"img":{"alt_text":"honed tubes, hydraulic cylinder honed tube","src":"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2023\/11\/_2023-11-24_185037155-e1700823067961.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2023\/11\/_2023-11-24_185037155-e1700823067961.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2023\/11\/_2023-11-24_185037155-e1700823067961.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2023\/11\/_2023-11-24_185037155-e1700823067961.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2635,"url":"https:\/\/skylinepipes.com\/es\/4140-honed-cylinder-tubes-4140-hydraulic-cylinder-barrel\/","url_meta":{"origin":2076,"position":2},"title":"4140 honed cylinder tubes | 4140 hydraulic cylinder barrel","author":"admin","date":"octubre 18, 2022","format":false,"excerpt":"Product Overview - 4140 honed cylinder tubes: Product Name: 4140 Hydraulic Cylinder Barrel This product is widely used to manufacturer hydraulic cylinders or repair cylinders, as the hydraulic cylinder barrel is usually made of seamless cold drawn steel tubes with inner diameter honing, so\u00a0it\u00a0is also well known as\u00a0honed tubing. Place\u2026","rel":"","context":"En \u00abHoned Tubing\u00bb","block_context":{"text":"Honed Tubing","link":"https:\/\/skylinepipes.com\/es\/products\/honed-tubing\/"},"img":{"alt_text":"Hydraulic Cylinder Barrel, Honed Cylinder Tube","src":"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2022\/09\/honed-cyinder-barrel.jpg?fit=500%2C500&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2599,"url":"https:\/\/skylinepipes.com\/es\/what-material-is-generally-used-for-chrome-plated-rods\/","url_meta":{"origin":2076,"position":3},"title":"What material is generally used for chrome plated rods?","author":"admin","date":"octubre 5, 2022","format":false,"excerpt":"Because of its high hardness, strong heat resistance, good wear resistance and chemical stability, chrome plated rods are very popular among users in the current machinery industry. What kind of material is chrome-plated rod generally used for chrome-plating? 1. 1045 steel 1045 steel is the most commonly used material for\u2026","rel":"","context":"En \u00abChrome Plated Bar\u00bb","block_context":{"text":"Chrome Plated Bar","link":"https:\/\/skylinepipes.com\/es\/articles-news\/chrome-plated-bar\/"},"img":{"alt_text":"Material specification of chrome plated hollow bars","src":"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2022\/06\/Material_specification_chrome_plated_hollow_bars.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2022\/06\/Material_specification_chrome_plated_hollow_bars.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2022\/06\/Material_specification_chrome_plated_hollow_bars.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2022\/06\/Material_specification_chrome_plated_hollow_bars.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2353,"url":"https:\/\/skylinepipes.com\/es\/what-are-the-materials-for-hydraulic-cylinder-tubes\/","url_meta":{"origin":2076,"position":4},"title":"What are the materials for hydraulic honed cylinder tubes?","author":"admin","date":"julio 23, 2022","format":false,"excerpt":"Hydraulic cylinder tube is known as honed tube also, it is usually made of cold drawns seamless tubes or DOM tubes, as hydraulic cylinder tubes are usually used to manufacture hydraulic cylinders body, so it is called hydraulic cylinder barrel commonly.\u00a0There are many different steel grades can be used as\u2026","rel":"","context":"En \u00abHoned Cylinder Tubes\u00bb","block_context":{"text":"Honed Cylinder Tubes","link":"https:\/\/skylinepipes.com\/es\/articles-news\/honed-cylinder-tubes\/"},"img":{"alt_text":"Hone-tubes-honed-cylinder-tubing","src":"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":2831,"url":"https:\/\/skylinepipes.com\/es\/what-is-hydraulic-cylinder-tube\/","url_meta":{"origin":2076,"position":5},"title":"Hydraulic Cylinder Tube Introduction | China manufacturer&#038;supplier","author":"admin","date":"marzo 15, 2023","format":false,"excerpt":"Hydraulic cylinder tube is known as honed tube also, it is usually made of cold drawn seamless tubes or DOM tubes, as hydraulic cylinder tubes are usually used to produce hydraulic cylinder body, so it is called hydraulic cylinder barrel commonly too. Our hydraulic cylinder tube is ready to use\u2026","rel":"","context":"En \u00abHoned Tubing\u00bb","block_context":{"text":"Honed Tubing","link":"https:\/\/skylinepipes.com\/es\/products\/honed-tubing\/"},"img":{"alt_text":"Hydraulic cylinder tube, Honed cylinder tubes","src":"https:\/\/i1.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?zoom=1.25&w=1046&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i1.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?zoom=1.25&w=1046&ssl=1&resize=350%2C200 1x, https:\/\/i1.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?zoom=1.25&w=1046&ssl=1&resize=525%2C300 1.5x, https:\/\/i1.wp.com\/skylinepipes.com\/wp-content\/uploads\/2018\/09\/Hone-tubes-honed-cylinder-tubing.jpg?zoom=1.25&w=1046&ssl=1&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/posts\/2076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/comments?post=2076"}],"version-history":[{"count":10,"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/posts\/2076\/revisions"}],"predecessor-version":[{"id":13641,"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/posts\/2076\/revisions\/13641"}],"wp:attachment":[{"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/media?parent=2076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/categories?post=2076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/skylinepipes.com\/es\/wp-json\/wp\/v2\/tags?post=2076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}