{"id":11205,"date":"2025-12-06T14:40:09","date_gmt":"2025-12-06T06:40:09","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11205"},"modified":"2026-06-10T10:10:40","modified_gmt":"2026-06-10T02:10:40","slug":"home-2025","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/","title":{"rendered":"China Tool Steel Forging Specialist &#8211; D2, H13, 1.2379, 1.2344 | Aobo Steel"},"content":{"rendered":"<div class=\"wp-block-cover alignfull is-light\" style=\"min-height:632px;aspect-ratio:unset;\"><video class=\"wp-block-cover__video-background intrinsic-ignore\" autoplay muted loop playsinline src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/final-banner-video.mp4\" data-object-fit=\"cover\"><\/video><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-10 has-background-dim\"><\/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-619f6525 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8b4d95d6\"><h2 class=\"uagb-heading-text\">Aobo Steel | Global Tool Steel Supplier in China<\/h2><p class=\"uagb-desc-text\">Premium Forged &amp; Hot-Rolled Tool Steel Specialist. Offering ESR, LF+VD Melting and Annealed Delivery. All Materials Meet SEP 1921-82 D\/d Standard with Full MTC Documentation.<\/p><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-df52ddb2\"><h5 class=\"uagb-heading-text\">\u2713100% UT Tested Quality Assurance<\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-371210f4\"><h5 class=\"uagb-heading-text\">\u2713Annealed State Delivery<\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-909a9658\"><h5 class=\"uagb-heading-text\">\u2713MTC Included with Every Shipment<\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-45c2f3ba\"><h5 class=\"uagb-heading-text\">\u2713Available in ESR, LF+VD Melting<\/h5><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-75b40739\"><h5 class=\"uagb-heading-text\">\u2713Competitive Factory-Direct Pricing<\/h5><\/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\"><a class=\"wp-block-button__link wp-element-button\">Contact Now<\/a><\/div>\n<\/div>\n<\/div><\/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 has-text-align-center has-ast-global-color-3-color has-text-color has-link-color wp-elements-3d4accb1c040143cb64ff9c4ee4534a6\" id=\"h-main-products\" style=\"font-style:normal;font-weight:700\">Main Products<\/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<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D2-steel.avif\" alt=\"D2 steel\" class=\"wp-image-4760\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D2-steel.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D2-steel-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D2-steel-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D2-steel-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption class=\"wp-element-caption\">D2 tool steel | 1.2379 | SKD11<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/aobosteel.com\/ko\/d3-tool-steel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3.avif\" alt=\"D3 TOOL STEEL\" class=\"wp-image-4761\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption class=\"wp-element-caption\">D3 tool steel | 1.2080 | SKD1<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/aobosteel.com\/ko\/a2-tool-steel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/A2-MATERIAL.webp\" alt=\"A2 tool steel\" class=\"wp-image-4997\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/A2-MATERIAL.webp 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/A2-MATERIAL-300x300.webp 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/A2-MATERIAL-150x150.webp 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/03\/A2-MATERIAL-12x12.webp 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption class=\"wp-element-caption\">A2 tool steel | 1.2363 | SKD12<\/figcaption><\/figure>\n<\/div>\n<\/div>\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\"><a href=\"https:\/\/aobosteel.com\/ko\/h11-tool-steel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H11-TOOL-STEEL-FLAT.avif\" alt=\"H11 Tool Steel\" class=\"wp-image-6292\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H11-TOOL-STEEL-FLAT.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H11-TOOL-STEEL-FLAT-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H11-TOOL-STEEL-FLAT-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H11-TOOL-STEEL-FLAT-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption class=\"wp-element-caption\">H11 tool steel | 1.2343 | SKD6<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/aobosteel.com\/ko\/h13-tool-steel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H13-STEEL-FLAT-BAR.avif\" alt=\"H13 STEEL\" class=\"wp-image-5788\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H13-STEEL-FLAT-BAR.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H13-STEEL-FLAT-BAR-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H13-STEEL-FLAT-BAR-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/H13-STEEL-FLAT-BAR-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption class=\"wp-element-caption\">H13 tool steel | 1.2344 | SKD61<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel.avif\" alt=\"o1 tool steel\" class=\"wp-image-5700\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption class=\"wp-element-caption\">O1 tool steel | 1.2510 | SKS3<\/figcaption><\/figure>\n<\/div>\n<\/div>\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\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/ko\/tool-steels\/\">Find More Tool Steels<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-8-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-center has-ast-global-color-3-color has-text-color has-link-color wp-elements-985a4285093eec5497ce0ba4875fea4a\" id=\"h-about-us\" style=\"font-style:normal;font-weight:700\">About Us<\/h2>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png\" alt=\"\" class=\"wp-image-1264 size-full\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png 512w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-300x300.png 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-150x150.png 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-12x12.png 12w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-270x270.png 270w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-192x192.png 192w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-180x180.png 180w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-32x32.png 32w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">Aobo Steel&#8217;s story began in 2003, when our founding company, Fuding Equipment Engineering Co., Ltd., started forging and processing tool steel in Huangshi, China. Those years on the factory floor, running our own forging and surface-treatment lines, gave us a real working knowledge of how tool steel is made, how quality changes from heat to heat, and what separates a reliable bar from a problem one.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 2017 we established Aobo Steel (Huangshi Aobo Mould Material Co., Ltd.) to bring that experience to international buyers. While our focus has since shifted from manufacturing to sourcing and quality control, we have kept every mill and supply-chain relationship built over the past two decades, more than 40 production and processing partners that let us match each order to the right source, grade, and inspection capability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That network, combined with hands-on metallurgical experience, is why distributors, stockists, importers, and manufacturers across the Czech Republic, Brazil, the Philippines, India, and other markets rely on us for regular supply. Across our domestic and export business, we move more than 1,200 tons of tool steel every month.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Every order is backed by an original Mill Test Certificate (EN 10204 3.1), heat-number traceability, and pre-shipment quality control, with UT ultrasonic testing and third-party verification available on request. Our job is simple: to make sure the tool steel you receive is exactly the grade, condition, and quality you ordered.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-8-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-align-center has-ast-global-color-3-color has-text-color has-link-color wp-elements-bf62e80a6d57b1c1fe01f73be8331892\" id=\"h-why-choose-aobo-steel\" style=\"font-style:normal;font-weight:700\">Why Choose 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<p class=\"wp-block-paragraph\">At Aobo Steel, we pride ourselves on our exceptional supply capacity and dedication to meeting customer demands. Our monthly shipments exceed 1,500 tons in the Chinese market, reflecting our robust production and delivery capabilities. With a strong network of over 40 trusted suppliers, we ensure a steady supply of high-quality tool steels to meet various industry needs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To provide even greater flexibility, we maintain stock for select products, allowing us to fulfill urgent orders quickly. Additionally, we specialize in fully customizable solutions, tailoring our products to your exact specifications for optimal application performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our strategic location near the Yangtze River gives us a significant advantage in export logistics, enabling fast and cost-effective shipping to customers worldwide. Whether you need standard products or custom orders, Aobo Steel is committed to delivering reliability, quality, and service excellence.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3.avif\" alt=\"D3 TOOL STEEL\" class=\"wp-image-4761\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D3-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n<\/div>\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 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"912\" height=\"684\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20221028_111745.jpg\" alt=\"\" class=\"wp-image-1668\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20221028_111745.jpg 912w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20221028_111745-300x225.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20221028_111745-768x576.jpg 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20221028_111745-16x12.jpg 16w\" sizes=\"auto, (max-width: 912px) 100vw, 912px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">At Aobo Steel, quality control is at the heart of our operations. Our dedicated testing team with over 20 years of experience ensures every product meets the highest standards before leaving our facility. Our comprehensive quality assurance process includes chemical composition analysis, metallographic examination, hardness testing, physical performance evaluation, and ultrasonic testing (UT) to detect internal defects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To guarantee reliability, we perform 100% quality inspection on all products before shipment, ensuring they meet the required specifications and industry standards. Additionally, we support third-party inspections upon request to provide our customers with extra confidence in the quality of our materials. With this rigorous approach, Aobo Steel consistently delivers tool steels that offer superior performance and dependability in various applications.<\/p>\n<\/div>\n<\/div>\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<p class=\"wp-block-paragraph\">At Aobo Steel, our service capacity is designed to meet diverse customer needs efficiently and precisely. We provide fully customizable products, offering surface treatments, descaling, and custom-length cutting options to suit specific requirements. Our experienced foreign trade team is well-versed in handling international orders, ensuring smooth communication and seamless transactions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To provide the best service, we guarantee a 24-hour rapid response to all inquiries, allowing us to address your needs promptly and effectively. At Aobo Steel, we are committed to delivering high-quality tool steels and exceptional customer service to support your success.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20171127_153124.jpg\" alt=\"\" class=\"wp-image-1667\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20171127_153124.jpg 640w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20171127_153124-300x225.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/IMG_20171127_153124-16x12.jpg 16w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Main Products About Us Aobo Steel&#8217;s story began in 2003, when our founding company, Fuding Equipment Engineering Co., Ltd., started forging and processing tool steel in Huangshi, China. Those years on the factory floor, running our own forging and surface-treatment lines, gave us a real working knowledge of how tool steel is made, how quality [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1264,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"full-width-container","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-11205","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>Tool Steel Supplier in China | Forged &amp; Annealed Steel Bars | Aobo Steel<\/title>\n<meta name=\"description\" content=\"China&#039;s premier tool steel manufacturer since 2002. Specializing in Annealed D2, H13, 1.2379, and 1.2080 forged &amp; hot rolled bars. , factory direct pricing. Get a quote now.\" \/>\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\/ko\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"China Tool Steel Forging Specialist - D2, H13, 1.2379, 1.2344 | Aobo Steel\" \/>\n<meta property=\"og:description\" content=\"China&#039;s premier tool steel manufacturer since 2002. Specializing in Annealed D2, H13, 1.2379, and 1.2080 forged &amp; hot rolled bars. , factory direct pricing. Get a quote now.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-10T02:10:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"512\" \/>\n\t<meta property=\"og:image:height\" content=\"512\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"6\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"China Tool Steel Forging Specialist &#8211; D2, H13, 1.2379, 1.2344 | Aobo Steel\",\"datePublished\":\"2025-12-06T06:40:09+00:00\",\"dateModified\":\"2026-06-10T02:10:40+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/\"},\"wordCount\":671,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-AOBOSTEEL-1.png\",\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"Tool Steel Supplier in China | Forged & Annealed Steel Bars | Aobo Steel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-AOBOSTEEL-1.png\",\"datePublished\":\"2025-12-06T06:40:09+00:00\",\"dateModified\":\"2026-06-10T02:10:40+00:00\",\"description\":\"China's premier tool steel manufacturer since 2002. Specializing in Annealed D2, H13, 1.2379, and 1.2080 forged & hot rolled bars. , factory direct pricing. Get a quote now.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-AOBOSTEEL-1.png\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-AOBOSTEEL-1.png\",\"width\":512,\"height\":512},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"China Tool Steel Forging Specialist &#8211; D2, H13, 1.2379, 1.2344 | Aobo Steel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/ko\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Tool Steel Supplier in China | Forged & Annealed Steel Bars | Aobo Steel","description":"China's premier tool steel manufacturer since 2002. Specializing in Annealed D2, H13, 1.2379, and 1.2080 forged & hot rolled bars. , factory direct pricing. Get a quote now.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/ko\/","og_locale":"ko_KR","og_type":"article","og_title":"China Tool Steel Forging Specialist - D2, H13, 1.2379, 1.2344 | Aobo Steel","og_description":"China's premier tool steel manufacturer since 2002. Specializing in Annealed D2, H13, 1.2379, and 1.2080 forged & hot rolled bars. , factory direct pricing. Get a quote now.","og_url":"https:\/\/aobosteel.com\/ko\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-06-10T02:10:40+00:00","og_image":[{"width":512,"height":512,"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"6\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"China Tool Steel Forging Specialist &#8211; D2, H13, 1.2379, 1.2344 | Aobo Steel","datePublished":"2025-12-06T06:40:09+00:00","dateModified":"2026-06-10T02:10:40+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/"},"wordCount":671,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png","inLanguage":"ko-KR"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/","url":"https:\/\/aobosteel.com\/","name":"Tool Steel Supplier in China | Forged & Annealed Steel Bars | Aobo Steel","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png","datePublished":"2025-12-06T06:40:09+00:00","dateModified":"2026-06-10T02:10:40+00:00","description":"China's premier tool steel manufacturer since 2002. Specializing in Annealed D2, H13, 1.2379, and 1.2080 forged & hot rolled bars. , factory direct pricing. Get a quote now.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png","width":512,"height":512},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"China Tool Steel Forging Specialist &#8211; D2, H13, 1.2379, 1.2344 | Aobo Steel"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"AoboSteel","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"AoboSteel","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"Evan","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-150x150.png",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-300x300.png",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-12x12.png",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"Main Products About Us Aobo Steel&#8217;s story began in 2003, when our founding company, Fuding Equipment Engineering Co., Ltd., started forging and processing tool steel in Huangshi, China. Those years on the factory floor, running our own forging and surface-treatment lines, gave us a real working knowledge of how tool steel is made, how quality&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-150x150.png",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-300x300.png",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1.png",512,512,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-AOBOSTEEL-1-12x12.png",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"Main Products About Us Aobo Steel&#8217;s story began in 2003, when our founding company, Fuding Equipment Engineering Co., Ltd., started forging and processing tool steel in Huangshi, China. Those years on the factory floor, running our own forging and surface-treatment lines, gave us a real working knowledge of how tool steel is made, how quality&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/comments?post=11205"}],"version-history":[{"count":1,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11205\/revisions"}],"predecessor-version":[{"id":15858,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11205\/revisions\/15858"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/1264"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=11205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}