{"id":9629,"date":"2025-08-09T16:24:48","date_gmt":"2025-08-09T08:24:48","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9629"},"modified":"2026-04-21T18:33:30","modified_gmt":"2026-04-21T10:33:30","slug":"cr12-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/cr12-tool-steel\/","title":{"rendered":"Cr12 Tool Steel Supplier | D3 \/ 1.2080 \/ SKD1 | Bulk Supply &amp; Manufacturer"},"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-advanced-heading uagb-block-382a13a1\"><h1 class=\"uagb-heading-text\">Cr12 Tool Steel (D3 \/ 1.2080 \/ SKD1) Supplier from China<\/h1><p class=\"uagb-desc-text\">Bulk Supply for Distributors &amp; Stockists | Stable Quality, Reliable Delivery<\/p><\/div>\n\n\n\n<div class=\"wp-block-buttons hs-cta-trigger-button hs-cta-trigger-button-230288465624 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\">Request Bulk Quote<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-d42118fa alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<p class=\"wp-block-paragraph\">Cr12 tool steel is a grade under the Chinese national standard. It is a classic high-carbon, high-chromium cold-work die steel that combines high strength, wear resistance, and hardenability. Equivalent grades to Cr12 include American AISI D3, German W-Nr. 1.2080, and Japanese JIS SKD1.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-a6276993 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<h2 class=\"wp-block-heading\" id=\"h-cr12-tool-steel-supply-overview\">Cr12 Tool Steel Supply Overview<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Grade<\/td><td>GB Cr12 \/ AISI D3 \/ DIN 1.2080 \/ JIS SKD1<\/td><\/tr><tr><td>Delivery Condition<\/td><td>Fully Annealed (Soft Condition for Machining)<\/td><\/tr><tr><td>Available Forms<\/td><td>Round Bar \/ Flat Bar \/ Plate \/ Forged Block<\/td><\/tr><tr><td>Monthly Production Capacity<\/td><td>Approx. 1000 metric tons<\/td><\/tr><tr><td>Recommended Export Quantity<\/td><td>Full 20GP container (~26 tons)<\/td><\/tr><tr><td>MOQ<\/td><td>5 tons<\/td><\/tr><tr><td>Lead Time (With Ingot Stock)<\/td><td>Approx. 20 days<\/td><\/tr><tr><td>Lead Time (Fresh Melt)<\/td><td>30\u201345 days<\/td><\/tr><tr><td>Lead Time (ESR Grade)<\/td><td>Approx. 60 days<\/td><\/tr><tr><td>Inspection<\/td><td>In-house UT team + Third-party inspection available<\/td><\/tr><tr><td>Documentation<\/td><td>MTC (EN 10204 3.1) + UT Report<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-91e84d54 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<h2 class=\"wp-block-heading\" id=\"h-why-global-distributors-source-cr12-from-aobo-steel\">Why Global Distributors Source Cr12 from Aobo Steel<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>Continuous monthly supply of around 1000 tons<\/li>\n\n\n\n<li>MOQ from 5 tons for wholesale orders<\/li>\n\n\n\n<li>Container-optimized bar and plate lengths<\/li>\n\n\n\n<li>Mixed sizes are supported for export loading<\/li>\n\n\n\n<li>Annealed delivery for downstream machining<\/li>\n\n\n\n<li>Stable sourcing through integrated supply chain partners<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<ul class=\"wp-block-list\">\n<li>UT inspection available to SEP 1921-82 D\/d or E\/e<\/li>\n\n\n\n<li>MTC and batch traceability with each shipment<\/li>\n\n\n\n<li>Heat number tracking for order control<\/li>\n\n\n\n<li>Black, turned, and polished surface options<\/li>\n\n\n\n<li>Bulk export packing for sea shipment<\/li>\n\n\n\n<li>Clear conversion path to the dedicated bulk supply page<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-65a5dd52 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-text-align-left\" id=\"h-stable-production-for-long-term-bulk-supply\">Stable Production for Long-Term Bulk Supply<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Continuous monthly output of around 1000 tons<\/li>\n\n\n\n<li>Continuous production cycles for inventory replenishment<\/li>\n\n\n\n<li>ESR (Electro-Slag Remelting) is available upon request<\/li>\n\n\n\n<li>Stable alloy sourcing to reduce supply interruption risk<\/li>\n\n\n\n<li>Full batch traceability linked to the original heat number<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"wp-block-button__link wp-element-button\">Request a Volume Quote<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-large has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20171115_153016-1024x576.avif\" alt=\"\" class=\"wp-image-12933\" style=\"border-top-left-radius:15px;border-top-right-radius:15px;border-bottom-left-radius:15px;border-bottom-right-radius:15px\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20171115_153016-1024x576.avif 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20171115_153016-300x169.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20171115_153016-768x432.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20171115_153016-1536x864.avif 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20171115_153016-18x10.avif 18w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20171115_153016.avif 1860w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-6baa8a7b alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<h2 class=\"wp-block-heading\" id=\"h-available-cr12-tool-steel-forms\">Available Cr12 Tool Steel Forms<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"206\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/03\/dd399cbb-cb1f-40f8-8398-03acefc1a0cd-1024x206.avif\" alt=\"\" class=\"wp-image-13355\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/03\/dd399cbb-cb1f-40f8-8398-03acefc1a0cd-1024x206.avif 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/03\/dd399cbb-cb1f-40f8-8398-03acefc1a0cd-300x60.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/03\/dd399cbb-cb1f-40f8-8398-03acefc1a0cd-768x155.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/03\/dd399cbb-cb1f-40f8-8398-03acefc1a0cd-18x4.avif 18w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/03\/dd399cbb-cb1f-40f8-8398-03acefc1a0cd.avif 1385w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20221028_111745.avif\" alt=\"\" class=\"wp-image-13133\" style=\"border-top-left-radius:15px;border-top-right-radius:15px;border-bottom-left-radius:15px;border-bottom-right-radius:15px\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20221028_111745.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20221028_111745-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20221028_111745-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/IMG_20221028_111745-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\" id=\"h-quality-control-for-bulk-orders\">Quality Control for Bulk Orders<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Every batch of tool steel supplied by Aobo Steel is verified before shipment to ensure grade accuracy, internal soundness, and traceability for bulk orders.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chemical composition verified by a spectrometer<\/li>\n\n\n\n<li>Ultrasonic testing available (SEP 1921-82)<\/li>\n\n\n\n<li>Delivered in spheroidized annealed condition<\/li>\n\n\n\n<li>Mill Test Certificate (EN 10204 3.1) with heat number<\/li>\n\n\n\n<li>Dimensional and surface inspection before shipment<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"wp-block-button__link wp-element-button\">Get Cr12 Bulk Supply Quote<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-42b10ea7 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\" id=\"h-export-packaging-and-container-loading\">Export Packaging and Container Loading<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Professional seaworthy export packing<\/li>\n\n\n\n<li>20GP loading optimized up to ~26 tons<\/li>\n\n\n\n<li>Mixed grades and mixed sizes supported<\/li>\n\n\n\n<li>Anti-rust protection for long sea transit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"h-\">For international shipments, full-container loading is strongly recommended to ensure cost efficiency and smoother customs processing.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"wp-block-button__link wp-element-button\">Get a Full Container Load (FCL) Quote<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/photobank-2.avif\" alt=\"\" class=\"wp-image-12935\" style=\"border-top-left-radius:15px;border-top-right-radius:15px;border-bottom-left-radius:15px;border-bottom-right-radius:15px\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/photobank-2.avif 1000w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/photobank-2-300x225.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/photobank-2-768x576.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/02\/photobank-2-16x12.avif 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"h-cr12-tool-steel-composition-gb-t-1299-2000\">Cr12 Tool Steel Composition(GB \/ T 1299\u20142000)<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>C<\/td><td>Cr<\/td><td>Si<\/td><td>Mn<\/td><td>P<\/td><td>S<\/td><\/tr><tr><td>2.00 &#8211; 2.30<\/td><td>11.50 &#8211; 13.00<\/td><td>\u2264 0.40<\/td><td>\u2264 0.40<\/td><td>\u2264 0.030<\/td><td>\u2264 0.030<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cr12-tool-steel-mechanical-properties\">Cr12 Tool Steel Mechanical Properties<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cr12 steel is classified as a high-carbon, high-chromium ledeburitic steel. Due to its high carbon mass fraction, it exhibits lower impact toughness and a tendency toward brittle fracture, coupled with a susceptibility to forming non-uniform eutectic carbides.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The high concentration of chromium in the steel promotes the formation of (CrFe)\u2087C\u2083 complex carbides, which in turn reduces the amount of cementite (Fe\u2083C). During quenching, a significant volume fraction of these carbides dissolves into the austenite phase. Subsequent quenching transforms the austenite into high-hardness martensite. Upon tempering, a fine and dispersed precipitation of carbides occurs within the martensitic matrix, resulting in excellent wear resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Through an appropriate heat treatment process, a microstructure that combines high strength and toughness can be achieved.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cr12-tool-steel-forging-process\">Cr12 Tool Steel Forging Process<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Item<\/strong><\/td><td><strong>Heating Temperature\/\u00b0C<\/strong><\/td><td><strong>Initial Forging Temperature\/\u00b0C<\/strong><\/td><td><strong>Final Forging Temperature\/\u00b0C<\/strong><\/td><td><strong>Cooling Method<\/strong><\/td><\/tr><tr><td>Steel Ingot<\/td><td>1140 ~ 1160<\/td><td>1100 ~ 1120<\/td><td>900 ~ 920<\/td><td>Slow Cooling<\/td><\/tr><tr><td>Steel Billet<\/td><td>1120 ~ 1140<\/td><td>1080 ~ 1100<\/td><td>880 ~ 920<\/td><td>Slow Cooling<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The primary objective of forging Cr12 steel is to break down and refine the coarse carbides inherent in the steel, ensuring they are distributed uniformly throughout the matrix. This process significantly improves the material&#8217;s overall strength and toughness. Furthermore, proper forging establishes a rational alignment of flow lines within the die, which helps promote consistent, predictable dimensional changes (distortion) in all directions during subsequent quenching.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Regarding the heating procedure for forging, it is crucial to first preheat the workpiece before gradually increasing it to the final forging temperature. Attention must be paid to the proper placement of the workpiece within the furnace, and the material should be turned or flipped periodically to ensure uniform heating.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cr12-tool-steel-heat-treatment\">Cr12 Tool Steel Heat Treatment<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-preheating\">Preheating<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td><strong>Process Parameters<\/strong><\/td><\/tr><tr><td><strong>General Annealing after Forging<\/strong><\/td><td>Heating temperature: 850 ~ 870 \u00b0C. After uniform heating, hold for 4 ~ 5h. Furnace cool at a rate of &lt;30\u00b0C\/h to below 500\u00b0C, then air cool. Hardness after annealing: \u2264229HBW. Microstructure after annealing: granular pearlite + carbide.<\/td><\/tr><tr><td><strong>Isothermal Annealing after Forging<\/strong><\/td><td>Heating temperature: 830 ~ 850 \u00b0C. Hold for 2 ~ 3h. Furnace cool to 720 ~ 740\u00b0C and hold for 3 ~ 4h. Furnace cool to below 550\u00b0C, then air cool. Hardness after annealing: \u2264269HBW. Microstructure: granular pearlite + carbide.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-quenching\">Quenching<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-quenching-specification\">Quenching Specification<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Process<\/td><td>Quenching Temperature\/\u00b0C<\/td><td>Cooling Method<\/td><td>Hardness HRC<\/td><\/tr><tr><td>Recommended&nbsp;Quenching Specification<\/td><td>950 ~ 980<\/td><td>Oil Cooling<\/td><td>\u226560<\/td><\/tr><tr><td>Isothermal Quenching Process<\/td><td colspan=\"3\">Heat to 980\u00b0C, hold for a certain period, then isothermally hold in a salt bath at 250 ~ 280\u00b0C for a period of time, and then air cool to obtain a mixed structure of lower bainite + martensite + retained austenite + carbide. Then, temper at an appropriate temperature to obtain a high-toughness structure.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-performance-comparison-of-different-heat-treatment-processes\">Performance Comparison of Different Heat Treatment Processes<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Heat Treatment Process<\/strong><\/td><td><strong>Hardness HRC<\/strong><\/td><td><strong>Impact Toughness a\u1d0b \/ (J\/cm\u00b2)<\/strong><\/td><td><strong>Retained Austenite (Volume Fraction, %)<\/strong><\/td><td><strong>Tapping Plate Life \/ x10\u2074 pieces<\/strong><\/td><td><strong>Wear Loss\/mg<\/strong><\/td><\/tr><tr><td>980\u00b0C heating, oil quenching<\/td><td>66.5<\/td><td>14.1<\/td><td>13.2<\/td><td>4<\/td><td>\u2014<\/td><\/tr><tr><td>980\u00b0C heating, 180\u00b0C graded quenching 50min<\/td><td>65.8<\/td><td>15.8<\/td><td>\u2014<\/td><td>5<\/td><td>\u2014<\/td><\/tr><tr><td>980\u00b0C heating, 270\u00b0C isothermal 3h<\/td><td>62.5<\/td><td>15.9<\/td><td>\u2014<\/td><td>6<\/td><td>11.9<\/td><\/tr><tr><td>980\u00b0C heating, 270\u00b0C isothermal 4h<\/td><td>60<\/td><td>17.7<\/td><td>15.02<\/td><td>\u2014<\/td><td>\u2014<\/td><\/tr><tr><td>980\u00b0C heating, 270\u00b0C isothermal 5h<\/td><td>59<\/td><td>16.8<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\u2014<\/td><\/tr><tr><td>980\u00b0C heating, 180\u00b0C pre-quenching 35min, 270\u00b0C isothermal 1h<\/td><td>64.6<\/td><td>14.6<\/td><td>\u2014<\/td><td>12 ~ 15<\/td><td>8.2<\/td><\/tr><tr><td>980\u00b0C heating, 180\u00b0C pre-quenching 35min, 270\u00b0C isothermal 2h<\/td><td>46.2<\/td><td>14.9<\/td><td>18.31<\/td><td>12 ~ 28<\/td><td>\u2014<\/td><\/tr><tr><td>980\u00b0C heating, 180\u00b0C pre-quenching 35min, 270\u00b0C isothermal 3h<\/td><td>63.8<\/td><td>15.2<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Note: All samples were tempered twice at 180\u00b0C, 1.5h each time.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-relationship-between-quenching-temperature-and-hardness\">Relationship between Quenching Temperature and Hardness<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Quenching Temperature\/\u00b0C<\/strong><\/td><td><strong>875<\/strong><\/td><td><strong>900<\/strong><\/td><td><strong>925<\/strong><\/td><td><strong>950<\/strong><\/td><td><strong>975<\/strong><\/td><td><strong>1000<\/strong><\/td><td><strong>1050<\/strong><\/td><td><strong>1100<\/strong><\/td><\/tr><tr><td><strong>Hardness HRC<\/strong><\/td><td>54.5<\/td><td>57<\/td><td>60<\/td><td>62.5<\/td><td>65<\/td><td>66<\/td><td>64<\/td><td>59.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-tempering\">Tempering<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tempering Specification<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Purpose of Tempering<\/strong><\/td><td><strong>Heating Temperature\/\u00b0C<\/strong><\/td><td><strong>Tempering Time (h)<\/strong><\/td><td><strong>Number of Tempers<\/strong><\/td><td><strong>Hardness HRC<\/strong><\/td><\/tr><tr><td>Relieve stress, stabilize structure<\/td><td>180 ~ 200<\/td><td>2<\/td><td>1<\/td><td>60 ~ 62<\/td><\/tr><tr><td>Relieve stress, reduce hardness<\/td><td>320 ~ 350<\/td><td>2<\/td><td>1<\/td><td>57 ~ 58<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> The tempering temperature is generally 180-200\u00b0C, with a hardness \u2265 60 HRC. To avoid cracks caused by EDM and grinding and to improve the mold&#8217;s toughness, it is often tempered below 400\u00b0C. The hardness after tempering is 54 ~ 58HRC. The temper brittleness range is 275 ~ 375\u00b0C, which should be avoided as much as possible during tempering.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Relationship between Tempering Temperature and Hardness<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Tempering Temperature\/\u00b0C<\/strong><\/td><td><strong>Not Tempered<\/strong><\/td><td><strong>200<\/strong><\/td><td><strong>300<\/strong><\/td><td><strong>400<\/strong><\/td><td><strong>450<\/strong><\/td><td><strong>500<\/strong><\/td><td><strong>550<\/strong><\/td><td><strong>600<\/strong><\/td><td><strong>650<\/strong><\/td><\/tr><tr><td><strong>Hardness HRC<\/strong><\/td><td>65<\/td><td>63<\/td><td>62<\/td><td>60<\/td><td>60<\/td><td>60<\/td><td>59.5<\/td><td>57.1<\/td><td>44<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> 955\u00b0C oil quenching.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cr12-tool-steel-applications\">Cr12 Tool Steel Applications<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It is predominantly selected for manufacturing components that require high wear resistance but are subjected to relatively low impact loads.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Specific applications include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cold shearing blades and cutters<\/li>\n\n\n\n<li>Drill bushings<\/li>\n\n\n\n<li>Gauges<\/li>\n\n\n\n<li>Punches<\/li>\n\n\n\n<li>Thread rolling plates and dies<\/li>\n\n\n\n<li>Stamping and punching dies<\/li>\n\n\n\n<li>Wire drawing dies<\/li>\n\n\n\n<li>Cold extrusion dies<\/li>\n\n\n\n<li>Coining and embossing dies<\/li>\n\n\n\n<li>Deep drawing dies<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" data-id=\"9886\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110139-1024x1024.avif\" alt=\"Cr12 steel\" class=\"wp-image-9886\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110139-1024x1024.avif 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110139-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110139-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110139-768x768.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110139-12x12.avif 12w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110139.avif 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Cr12 tool steel<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"810\" data-id=\"9887\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110125.avif\" alt=\"cr12 material\" class=\"wp-image-9887\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110125.avif 810w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110125-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110125-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110125-768x768.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/08\/2025-04-17-110125-12x12.avif 12w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><figcaption class=\"wp-element-caption\">Cr12 tool steel<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-8-background-color has-background is-vertical is-content-justification-stretch is-layout-flex wp-container-core-group-is-layout-fb128502 wp-block-group-is-layout-flex\">\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-your-premier-source-for-cr12-round-bars-and-plates\">Your Premier Source for Cr12 Round Bars and Plates<\/h2>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Leverage our 20+ years of expertise. We supply high-quality Cr12 tool steel in both round bars and plates, perfect for applications requiring high wear resistance and compressive strength. Contact our specialists for detailed specifications and a competitive quote.<\/p>\n\n\n\n<div class=\"wp-block-leadin-hubspot-form-block\">\n\t\t\t\t\t\t<script>\n\t\t\t\t\t\t\twindow.hsFormsOnReady = window.hsFormsOnReady || [];\n\t\t\t\t\t\t\twindow.hsFormsOnReady.push(()=>{\n\t\t\t\t\t\t\t\thbspt.forms.create({\n\t\t\t\t\t\t\t\t\tportalId: 242461771,\n\t\t\t\t\t\t\t\t\tformId: \"1f7a4dcb-eb56-45e5-bd4f-5921cbf714c1\",\n\t\t\t\t\t\t\t\t\ttarget: \"#hbspt-form-1781065646000-6976092115\",\n\t\t\t\t\t\t\t\t\tregion: \"na2\",\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t})});\n\t\t\t\t\t\t<\/script>\n\t\t\t\t\t\t<div class=\"hbspt-form\" id=\"hbspt-form-1781065646000-6976092115\"><\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\\\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Forged Cr12 \\\/ D3 (1.2080) Tool Steel Round Bar\",\n    \"image\": \"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/2025-04-17-110125.avif\",\n    \"description\": \"High-quality Forged Cr12 (D3 \\\/ 1.2080) Cold Work Tool Steel directly from Aobo Steel factory. High wear resistance and hardenability. Available in Round, Flat, and Block shapes. Manufacturer price.\",\n    \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Aobo Steel\"\n    },\n    \"manufacturer\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Aobo Steel\"\n    },\n    \"sku\": \"AOBO-Cr12-Round\",\n    \"mpn\": \"AOBO-Cr12-MFG\",\n    \"offers\": {\n        \"@type\": \"AggregateOffer\",\n        \"url\": \"https:\\\/\\\/aobosteel.com\\\/cr12-tool-steel\\\/\",\n        \"priceCurrency\": \"USD\",\n        \"lowPrice\": \"1100\",\n        \"highPrice\": \"1400\",\n        \"offerCount\": \"5\",\n        \"availability\": \"https:\\\/\\\/schema.org\\\/InStock\",\n        \"itemCondition\": \"https:\\\/\\\/schema.org\\\/NewCondition\",\n        \"seller\": {\n            \"@type\": \"Organization\",\n            \"name\": \"Aobo Steel\",\n            \"telephone\": \"+86 180 6294 5370\",\n            \"address\": {\n                \"@type\": \"PostalAddress\",\n                \"streetAddress\": \"No. 141 Huangjiawan, Shileishan Village, Xisai District\",\n                \"addressLocality\": \"Huangshi City\",\n                \"addressRegion\": \"Hubei Province\",\n                \"postalCode\": \"435000\",\n                \"addressCountry\": \"CN\"\n            }\n        }\n    }\n}<\/script>","protected":false},"excerpt":{"rendered":"<p>Cr12 tool steel is a grade under the Chinese national standard. It is a classic high-carbon, high-chromium cold-work die steel that combines high strength, wear resistance, and hardenability. Equivalent grades to Cr12 include American AISI D3, German W-Nr. 1.2080, and Japanese JIS SKD1. Cr12 Tool Steel Supply Overview Grade GB Cr12 \/ AISI D3 \/ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9887,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"landing-page","_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":"disabled","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-9629","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Cr12 Tool Steel Supplier | D3 \/ 1.2080 \/ SKD1 | Bulk Supply &amp; Manufacturer<\/title>\n<meta name=\"description\" content=\"Cr12 (D3 \/ 1.2080 \/ SKD1) tool steel supplier from China. 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