{"id":12247,"date":"2026-01-14T20:17:10","date_gmt":"2026-01-14T12:17:10","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=12247"},"modified":"2026-04-27T07:24:41","modified_gmt":"2026-04-26T23:24:41","slug":"52100-steel-heat-treatment-guide","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/52100-steel-heat-treatment-guide\/","title":{"rendered":"Guia de Tratamento T\u00e9rmico do A\u00e7o 52100"},"content":{"rendered":"<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"337\" class=\"wp-block-cover__image-background wp-image-7233 size-large\" alt=\"\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp\" data-object-fit=\"cover\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-300x99.webp 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-768x253.webp 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1536x506.webp 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-18x6.webp 18w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#4e4b40\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-uagb-container uagb-block-29fc5c3c alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-33e61970\"><h6 class=\"uagb-heading-text\"><a href=\"https:\/\/aobosteel.com\/pt\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">In\u00edcio<\/mark>     <\/a>&gt; <a href=\"https:\/\/aobosteel.com\/pt\/tool-steel-heat-treatment-guide\/\">    <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">Centro T\u00e9cnico de Tratamento T\u00e9rmico de A\u00e7os para Ferramentas<\/mark>    <\/a> &gt; Guia de Tratamento T\u00e9rmico do A\u00e7o 52100<\/h6><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8276fe18\"><h4 class=\"uagb-heading-text\"><em>Aobo Steel | Fornecedor global de a\u00e7o para ferramentas na China<\/em><\/h4><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c04ecb9d\"><h1 class=\"uagb-heading-text\">Guia de Tratamento T\u00e9rmico do A\u00e7o 52100<\/h1><p class=\"uagb-desc-text\">Domine os ciclos de t\u00eampera e revenido para o a\u00e7o 52100 (100Cr6\/1.3505) para obter a vida \u00fatil e a dureza ideais em rela\u00e7\u00e3o \u00e0 fadiga. Baseado nas normas ASTM A295 e DIN EN ISO 683-17.<\/p><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"wp-block-button__link wp-element-button\">Solicite uma consulta r\u00e1pida<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/pt\/52100-bearing-steel\/\">52100 Especifica\u00e7\u00f5es do Material<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-974948bb alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/pt\/52100-bearing-steel\/\">AISI 52100<\/a> \u00c9 um a\u00e7o hipereutet\u00f3ide de alto carbono e baixo teor de cromo, contendo aproximadamente 1,0% de carbono e 1,5% de cromo. \u00c9 amplamente utilizado internacionalmente em mancais totalmente temperados e aplica\u00e7\u00f5es de alto desgaste.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The properties of 52100 steel are derived equally from its composition and from proper hardening heat treatment. While conventional tool steel heat treatment aims to minimize retained austenite to prevent deformation and cracking, 52100 steel heat treatment intentionally retains a portion of it. When 52100 is used in bearings, it generates high-frequency rolling contact fatigue. Residual austenite is specifically designed to accommodate this operating condition. Research indicates that 52100 bearings containing 5% to 15% RA typically exhibit longer rolling fatigue life than bearings with no RA content.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ap\u00f3s receberem o a\u00e7o 52100 recozido, nossos clientes devem realizar seus pr\u00f3prios tratamentos t\u00e9rmicos, incluindo o recozimento para al\u00edvio de tens\u00f5es e a t\u00eampera. O processo de t\u00eampera segue os procedimentos padr\u00e3o para a\u00e7os-ferramenta, abrangendo pr\u00e9-aquecimento, austenitiza\u00e7\u00e3o, t\u00eampera e revenido. Este documento se concentra nessas etapas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tratamento t\u00e9rmico para al\u00edvio do estresse<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para garantir a estabilidade dimensional durante a etapa subsequente de t\u00eampera do a\u00e7o 52100, as opera\u00e7\u00f5es de al\u00edvio de tens\u00f5es s\u00e3o essenciais, principalmente ap\u00f3s usinagem pesada ou conforma\u00e7\u00e3o. As tens\u00f5es residuais de usinagem na pe\u00e7a s\u00e3o aliviadas durante o tratamento t\u00e9rmico, resultando em altera\u00e7\u00f5es dimensionais significativas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Procedimento operacional: Aquecer a uma temperatura entre 650 \u00b0C e 700 \u00b0C (1200 \u00b0F e 1300 \u00b0F). Manter nessa temperatura por tempo suficiente para eliminar completamente as tens\u00f5es internas. Em seguida, realizar um resfriamento lento no forno at\u00e9 aproximadamente 500 \u00b0C, seguido de um resfriamento final ao ar at\u00e9 a temperatura ambiente.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pr\u00e9-aquecimento<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O pr\u00e9-aquecimento do a\u00e7o AISI 52100 previne o choque t\u00e9rmico e garante uma distribui\u00e7\u00e3o uniforme de temperatura entre a superf\u00edcie e o n\u00facleo da pe\u00e7a. Este a\u00e7o de alto carbono possui condutividade t\u00e9rmica relativamente baixa. O aquecimento r\u00e1pido pode criar diferenciais de temperatura significativos entre o interior e o exterior, aumentando o risco de fissuras no material 52100. A faixa de temperatura de pr\u00e9-aquecimento \u00e9 de 650 \u00b0C a 705 \u00b0C (1200 \u00b0F a 1300 \u00b0F).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Austenitiza\u00e7\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The purpose of austenitizing is to dissolve an appropriate amount of carbon and chromium into the austenite phase to ensure high hardness after quenching. Simultaneously, it preserves finely dispersed, finely distributed undissolved carbides to enhance the material&#8217;s wear resistance.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A temperatura de austenitiza\u00e7\u00e3o recomendada para o a\u00e7o 52100 \u00e9 tipicamente de 815 \u00b0C a 845 \u00b0C (1500 \u00b0F a 1555 \u00b0F). Mantenha nessa temperatura por 10 a 30 minutos, dependendo das dimens\u00f5es da se\u00e7\u00e3o transversal da pe\u00e7a. O superaquecimento ou o tempo de manuten\u00e7\u00e3o excessivo devem ser evitados, pois essas pr\u00e1ticas geram excesso de austenita retida e reduzem significativamente a tenacidade do material devido ao crescimento de gr\u00e3os.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Resfriamento<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quenching is designed to rapidly transform the austenitic structure into martensite. AISI 52100 steel is oil-quenchable; water quenching is prohibited, as the intense cooling intensity of water quenching is highly prone to inducing stress cracks. The oil bath should be maintained between 40\u00b0C and 60\u00b0C (100\u00b0F to 140\u00b0F). This temperature range ensures stable cooling while minimizing deformation caused by thermal shock.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A agita\u00e7\u00e3o mec\u00e2nica durante o resfriamento \u00e9 essencial para garantir um resfriamento uniforme e evitar pontos fracos localizados. Quando resfriado corretamente, o a\u00e7o 52100 normalmente atinge uma dureza de 63\u201365 HRC.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00eampera<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When the 52100 workpiece cools during quenching to a residual temperature (50\u00b0C to 70\u00b0C), it should be promptly transferred to the tempering furnace for tempering. Tempering eliminates quenching stresses, reducing brittleness in 52100 steel and preventing spontaneous cracking. For bearing applications, standard tempering temperatures range from 180\u00b0C to 250\u00b0C to maintain hardness above 60 HRC.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Problemas comuns e solu\u00e7\u00f5es no tratamento t\u00e9rmico do a\u00e7o 52100<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Descarboneta\u00e7\u00e3o<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Decarburization primarily occurs when workpieces react with oxygen at high temperatures, leading to surface carbon loss and the formation of a so-called soft layer. To effectively prevent decarburization, it is recommended to use protective atmospheres, salt baths, or vacuum furnaces for heating during the 52100 hardening process. It is essential to maintain a strictly neutral-to-slightly reducing atmosphere within the furnace to prevent oxidation reactions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Trincas de t\u00eampera<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">52100 quenching cracks typically originate from excessive cooling rates or thermal shock, occurring most frequently during water quenching or when heated beyond the recommended temperature. To address this issue, apply oil at 40-60\u00b0C as the quenching medium. Simultaneously, minimizing temperature differentials between the workpiece&#8217;s interior and exterior through thorough preheating, coupled with strict control of the austenitizing temperature within the recommended range, can significantly reduce the risk of cracking.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Distor\u00e7\u00e3o Dimensional<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As principais causas de deforma\u00e7\u00e3o dimensional na pe\u00e7a de a\u00e7o 52100 incluem taxas de resfriamento desiguais e a libera\u00e7\u00e3o de tens\u00f5es residuais de usinagem durante o aquecimento. Para solucionar esse problema, recomenda-se incorporar uma etapa de tratamento de al\u00edvio de tens\u00f5es ap\u00f3s o desbaste, realizada a 650 \u00b0C-700 \u00b0C. Al\u00e9m disso, o uso de um m\u00e9todo de t\u00eampera em etapas pode proporcionar uma distribui\u00e7\u00e3o uniforme de temperatura em toda a pe\u00e7a antes do in\u00edcio da transforma\u00e7\u00e3o martens\u00edtica, controlando, assim, a deforma\u00e7\u00e3o de forma eficaz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Austenita retida<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"h-\">Overheating during austenitization of 52100 steel lowers the martensite transformation start temperature (Ms), leading to excessive retained austenite after quenching. This structure is softer, leading to dimensional instability in the workpiece. The solution is to strictly adhere to the austenitization temperature range of 815-845\u00b0C. For special requirements, immediate deep cryogenic treatment (e.g., -70\u00b0C to -100\u00b0C) after quenching can be performed to promote complete transformation of retained austenite into martensite.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faq\">Perguntas frequentes<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1768392296957\"><strong class=\"schema-faq-question\">Qual \u00e9 a temperatura de austenitiza\u00e7\u00e3o recomendada para o a\u00e7o 52100?<\/strong> <p class=\"schema-faq-answer\">A temperatura de austenitiza\u00e7\u00e3o deve ser definida entre 815 \u00b0C e 845 \u00b0C (1500 \u00b0F a 1555 \u00b0F). Mantenha o a\u00e7o nessa temperatura por 10 a 30 minutos, dependendo das dimens\u00f5es da se\u00e7\u00e3o transversal da pe\u00e7a.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768392320594\"><strong class=\"schema-faq-question\">Posso temperar o a\u00e7o 52100 em \u00e1gua?<\/strong> <p class=\"schema-faq-answer\">N\u00e3o, o resfriamento em \u00e1gua \u00e9 proibido, pois a alta intensidade do resfriamento \u00e9 altamente propensa a induzir fissuras por tens\u00e3o. \u00c9 necess\u00e1rio usar um banho de \u00f3leo mantido entre 40\u00b0C e 60\u00b0C (100\u00b0F e 140\u00b0F).<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768392321380\"><strong class=\"schema-faq-question\">Qual \u00e9 a temperatura de revenimento do a\u00e7o 52100?<\/strong> <p class=\"schema-faq-answer\">As temperaturas padr\u00e3o de revenimento variam de 180\u00b0C a 250\u00b0C para manter a dureza acima de 60 HRC. A pe\u00e7a deve ser revenida imediatamente ap\u00f3s o resfriamento a 50\u00b0C-70\u00b0C para evitar trincas espont\u00e2neas.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768392322559\"><strong class=\"schema-faq-question\">How do I relieve stress in 52100 steel?<\/strong> <p class=\"schema-faq-answer\">Heat the material to 650\u00b0C to 700\u00b0C (1200\u00b0F to 1300\u00b0F) to relieve internal stresses. Follow this with a slow furnace cool to roughly 500\u00b0C, then air cool to room temperature.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768392323079\"><strong class=\"schema-faq-question\">Por que o pr\u00e9-aquecimento \u00e9 necess\u00e1rio para o a\u00e7o 52100?<\/strong> <p class=\"schema-faq-answer\">O pr\u00e9-aquecimento previne o choque t\u00e9rmico e garante uma distribui\u00e7\u00e3o uniforme da temperatura, visto que este a\u00e7o de alto carbono possui baixa condutividade t\u00e9rmica. Isso reduz o risco de fissuras causadas por diferen\u00e7as de temperatura entre a superf\u00edcie e o n\u00facleo.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768392323847\"><strong class=\"schema-faq-question\">Como posso evitar fissuras de t\u00eampera no a\u00e7o 52100?<\/strong> <p class=\"schema-faq-answer\">Utilize \u00f3leo a 40\u00b0C a 60\u00b0C como meio de t\u00eampera em vez de \u00e1gua para controlar as taxas de resfriamento. Al\u00e9m disso, assegure um pr\u00e9-aquecimento completo e controle rigorosamente a temperatura de austenitiza\u00e7\u00e3o para evitar o superaquecimento.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768392382797\"><strong class=\"schema-faq-question\">Como posso reduzir o excesso de austenita retida no a\u00e7o 52100?<\/strong> <p class=\"schema-faq-answer\">Respeite rigorosamente a faixa de austenitiza\u00e7\u00e3o de 815 \u00b0C a 845 \u00b0C, pois o superaquecimento aumenta a austenita retida. Como alternativa, realize um tratamento criog\u00eanico profundo (de -70 \u00b0C a -100 \u00b0C) imediatamente ap\u00f3s o resfriamento r\u00e1pido para transform\u00e1-la em martensita.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768392403015\"><strong class=\"schema-faq-question\">Como evitar a descarboneta\u00e7\u00e3o durante a t\u00eampera do a\u00e7o 52100?<\/strong> <p class=\"schema-faq-answer\">Use protective atmospheres, salt baths, or vacuum furnaces during heating to prevent oxygen reaction. Maintaining a neutral-to-slightly reducing atmosphere is essential to prevent surface carbon loss.<\/p> <\/div> <\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>AISI 52100 is a high-carbon, low-chromium hypereutectoid steel containing approximately 1.0% carbon and 1.5% chromium. It is widely used internationally for fully hardened bearings and high-wear applications. The properties of 52100 steel are derived equally from its composition and from proper hardening heat treatment. While conventional tool steel heat treatment aims to minimize retained austenite [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"knowledge-article","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-12247","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6.1 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>52100 Steel Heat Treatment Guide - AoboSteel<\/title>\n<meta name=\"description\" content=\"Expert guide to 52100 steel heat treatment. Learn stress relief, austenitizing (815\u00b0C-845\u00b0C), and oil quenching (40-60\u00b0C) to achieve 63-65 HRC and 5-15% RA for optimal bearing life. Get factory-direct 52100 steel from Aobo Steel.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/pt\/52100-steel-heat-treatment-guide\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"52100 Steel Heat Treatment Guide\" \/>\n<meta property=\"og:description\" content=\"Expert guide to 52100 steel heat treatment. Learn stress relief, austenitizing (815\u00b0C-845\u00b0C), and oil quenching (40-60\u00b0C) to achieve 63-65 HRC and 5-15% RA for optimal bearing life. 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Hold the steel at this temperature for 10 to 30 minutes, depending on the workpiece's cross-sectional dimensions.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392320594\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392320594\",\"name\":\"Can I quench 52100 steel in water?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, water quenching is prohibited because the intense cooling intensity is highly prone to inducing stress cracks. You must use an oil bath maintained between 40\u00b0C and 60\u00b0C (100\u00b0F to 140\u00b0F).\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392321380\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392321380\",\"name\":\"What is the tempering temperature for 52100 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Standard tempering temperatures range from 180\u00b0C to 250\u00b0C to keep hardness above 60 HRC. The workpiece should be tempered promptly after cooling to 50\u00b0C-70\u00b0C to prevent spontaneous cracking.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392322559\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392322559\",\"name\":\"How do I relieve stress in 52100 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Heat the material to 650\u00b0C to 700\u00b0C (1200\u00b0F to 1300\u00b0F) to relieve internal stresses. Follow this with a slow furnace cool to roughly 500\u00b0C, then air cool to room temperature.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392323079\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392323079\",\"name\":\"Why is preheating necessary for 52100 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Preheating prevents thermal stress shock and ensures uniform temperature distribution, as this high-carbon steel has low thermal conductivity. It reduces the risk of cracking caused by temperature differentials between the surface and core.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392323847\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392323847\",\"name\":\"How can I prevent quenching cracks in 52100 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use oil at 40\u00b0C to 60\u00b0C as the quenching medium rather than water to manage cooling rates. Additionally, ensure thorough preheating and strictly control the austenitizing temperature to avoid overheating.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392382797\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392382797\",\"name\":\"How do I reduce excessive retained austenite in 52100 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Strictly adhere to the austenitization range of 815\u00b0C to 845\u00b0C, as overheating increases retained austenite. Alternatively, perform deep cryogenic treatment (-70\u00b0C to -100\u00b0C) immediately after quenching to transform it into martensite.\",\"inLanguage\":\"pt-BR\"},\"inLanguage\":\"pt-BR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392403015\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/52100-steel-heat-treatment-guide\\\/#faq-question-1768392403015\",\"name\":\"How to prevent decarburization during 52100 hardening?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use protective atmospheres, salt baths, or vacuum furnaces during heating to prevent oxygen reaction. 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Hold the steel at this temperature for 10 to 30 minutes, depending on the workpiece's cross-sectional dimensions.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392320594","position":2,"url":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392320594","name":"Posso temperar o a\u00e7o 52100 em \u00e1gua?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No, water quenching is prohibited because the intense cooling intensity is highly prone to inducing stress cracks. You must use an oil bath maintained between 40\u00b0C and 60\u00b0C (100\u00b0F to 140\u00b0F).","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392321380","position":3,"url":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392321380","name":"Qual \u00e9 a temperatura de revenimento do a\u00e7o 52100?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Standard tempering temperatures range from 180\u00b0C to 250\u00b0C to keep hardness above 60 HRC. The workpiece should be tempered promptly after cooling to 50\u00b0C-70\u00b0C to prevent spontaneous cracking.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392322559","position":4,"url":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392322559","name":"How do I relieve stress in 52100 steel?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Heat the material to 650\u00b0C to 700\u00b0C (1200\u00b0F to 1300\u00b0F) to relieve internal stresses. Follow this with a slow furnace cool to roughly 500\u00b0C, then air cool to room temperature.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392323079","position":5,"url":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392323079","name":"Por que o pr\u00e9-aquecimento \u00e9 necess\u00e1rio para o a\u00e7o 52100?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Preheating prevents thermal stress shock and ensures uniform temperature distribution, as this high-carbon steel has low thermal conductivity. It reduces the risk of cracking caused by temperature differentials between the surface and core.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392323847","position":6,"url":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392323847","name":"Como posso evitar fissuras de t\u00eampera no a\u00e7o 52100?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Use oil at 40\u00b0C to 60\u00b0C as the quenching medium rather than water to manage cooling rates. Additionally, ensure thorough preheating and strictly control the austenitizing temperature to avoid overheating.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392382797","position":7,"url":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392382797","name":"Como posso reduzir o excesso de austenita retida no a\u00e7o 52100?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Strictly adhere to the austenitization range of 815\u00b0C to 845\u00b0C, as overheating increases retained austenite. Alternatively, perform deep cryogenic treatment (-70\u00b0C to -100\u00b0C) immediately after quenching to transform it into martensite.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392403015","position":8,"url":"https:\/\/aobosteel.com\/52100-steel-heat-treatment-guide\/#faq-question-1768392403015","name":"Como evitar a descarboneta\u00e7\u00e3o durante a t\u00eampera do a\u00e7o 52100?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Use protective atmospheres, salt baths, or vacuum furnaces during heating to prevent oxygen reaction. Maintaining a neutral-to-slightly reducing atmosphere is essential to prevent surface carbon loss.","inLanguage":"pt-BR"},"inLanguage":"pt-BR"}]}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"AISI 52100 is a high-carbon, low-chromium hypereutectoid steel containing approximately 1.0% carbon and 1.5% chromium. It is widely used internationally for fully hardened bearings and high-wear applications. The properties of 52100 steel are derived equally from its composition and from proper hardening heat treatment. While conventional tool steel heat treatment aims to minimize retained austenite&hellip;","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/pt\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"AISI 52100 is a high-carbon, low-chromium hypereutectoid steel containing approximately 1.0% carbon and 1.5% chromium. It is widely used internationally for fully hardened bearings and high-wear applications. The properties of 52100 steel are derived equally from its composition and from proper hardening heat treatment. While conventional tool steel heat treatment aims to minimize retained austenite&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/12247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/comments?post=12247"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/pages\/12247\/revisions"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/pt\/wp-json\/wp\/v2\/media?parent=12247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}