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{{menuText}} Search Japanese Chinese Contact Us Quote About DAIDO STEEL Products R&D Investor Relations Sustainability Sustainability --> 学生の皆さまへ --> Tool Steel Close Tool Steel Tool steel is one of Daido's major products and we have a wide variety of products for cold, hot, high speed and plastic mold applications. Some of our brand steels are highly evaluated globally such as DC53 and NAK. To satidfy our customers' demands, we are pursuing high quality products and high performance technical services. TOP Products Tool Steel Cold Work Tool Steel Font Size Normal Large Cold Work Tool Steel Daido Steel's tool steels lineup for cold stamping and forging includes D2, matrix-high-speed steel, and original steel grades with high hardness and toughness. Our products contribute to the prevention of wear, chipping and other issues that may happen in cold stamping for high tensile strength steel sheets and thick steel sheets. It is also applicable to cold working tools such as rolls and blades. Conceptual diagram Products list Grade Brand name Equivalent standard Characteristics Detailed information JIS AISI WNr. Special page Brochure Technical data Type D2 & Original Cold Work Die Steel DC11 SKD11 D2 eq. 1.2379eq. ・General-purpose cold work diesteel DC53 - - - ・8Cr-2Mo type ・High hardness & toughness DCMX - - - ・Matrix type cold work die steel ・High toughness, easy machining& small dimensional change Alloy toolsteel YK30 SKS93 W5mod. - ・Oil hardening steel GOA SKS3mod. O1mod. 1.2510mod. ・Oil hardening steel GO4 - - - ・Air hardening Steel GO5 - - - ・Flame hardening Steel GO40F - - - ・40HRC Pre-hardened steel ・Easy machining High Speed Tool Steel Matrix Type DRM2 - - - ・High hardness & toughness ・Maximum hardness 62HRC DRM3 - - - ・High hardenability ・Maximum hardness 66HRC PowderMetallurgy High Speed Tool Steel DEX20 - - - ・High toughness DEX40 - - - ・High toughness ・High strength at elevated temp. For the latest physical property data, please see "Physical Properties“.Values listed in the brochure may differ. Cold WorkTool Steel High Speed Tool Steel For technical information on Plastic Mold Steel in general and peripheral technologies, please see "Related Documents". Technical Data No. Title Publication / Source Volume & page Read the document S03e The application of DCMX (No. SD1901) - - Open PDF file G01 1C-1Si-8Cr-2Mo系冷間工具鋼の高温焼戻し硬さと2次硬化挙動について 大同特殊鋼技報「電気製鋼」 1989年 60巻 4号 p.311-323 Go to J-STAGE site G02 1C-1Si-8Cr-2Mo鋼の靱性に及ぼす残留オーステナイトの影響 大同特殊鋼技報「電気製鋼」 1993年 64巻 3号 p.140-151 Go to J-STAGE site G03 1C-8Cr系高温焼戻し冷間工具鋼の経時寸法変化におよぼす残留オーステナイト安定化の影響 大同特殊鋼技報「電気製鋼」 2000年 71巻 2号 p.141-148 Go to J-STAGE site G04 冷間工具鋼の疲労強度に及ぼす一次炭化物分布の影響 大同特殊鋼技報「電気製鋼」 2005年 76巻 4号 p.249-257 Go to J-STAGE site G05 冷間ダイス鋼の熱処理変寸の異方性に及ぼす晶出炭化物の影響 大同特殊鋼技報「電気製鋼」 2007年 78巻 4号 p.289-290 Go to J-STAGE site G06 熱処理寸法の制御が容易なマトリックス冷間ダイス鋼 DCMX 大同特殊鋼技報「電気製鋼」 2010年 81巻 1号 p.53-60 Go to DENKI-SEIKO page (G06e) A New Type Cold Work Die Steel withIsotropy of Dimensional Change“DCMX" (No. SD2006) Source: DENKI-SEIKO(Electric Furnace Steel) 2010, Vol.81, No.1, p.53-60 Open PDF file L01 高硬度・高靭性マトリックスハイスDRM鋼の開発 大同特殊鋼技報「電気製鋼」 2005年 76巻 4号 p.279-286 Go to J-STAGE site (L01e) The Development of High Hardness andToughness Matrix Type High Speed ToolSteels “DRM” (No. SD2108) Source: DENKI-SEIKO(Electric Furnace Steel) 2005, Vol.76, No.4, p.279-286 Open PDF file L02 金型用マトリックスハイスDRM鋼の実用事例 大同特殊鋼技報「電気製鋼」 2007年 78巻 4号 p.353-360 Go to J-STAGE site Related Documents No. Title Publication / Source Volume & page Read the document H01 高張力鋼板の冷間成形での工具損傷における工具鋼種類の影響 大同特殊鋼技報「電気製鋼」 2017年 88巻 2号 p.95-100 Go to DENKI-SEIKO page H02 高張力鋼板成形用冷間金型における表面処理品の寿命評価 大同特殊鋼技報「電気製鋼」 2014年 85巻 1号 p.39-46 Go to DENKI-SEIKO page (H02e) Life Evaluation of Surface Treatments ofMold in Cold Working of High StrengthSteel (No. SD2003) Source: DENKI-SEIKO(Electric Furnace Steel) 2014, Vol.85, No.1, p.39-46 Open PDF file H03 パンチコーティングが及ぼす穴抜き切り口性状への影響 大同特殊鋼技報「電気製鋼」 2014年 85巻 1号 p.47-51 Go to DENKI-SEIKO page (H03e) Effect of Punch Coating on Pierced SurfaceProperties (No. SD2004) Source: DENKI-SEIKO(Electric Furnace Steel) 2014, Vol.85, No.1, p.47-51 Open PDF file Inquiries about Tool Steel Contact Us Quote We will send it directly to the person in charge of the product. We will contact you after confirming the contents. --> Tool Steel Hot Work Tool Steel(Hot-Forming Die) Used for forging dies for forming heated metal materials. Hot Work Tool Steel (Die-Casting Die) Used for die casting molds for casting molten alloys (Al etc.). Hot Stamping Die Steel Used for hot stamping dies, which form and quench heated steel sheets. Cold Work Tool Steel Used for cold press and forging dies for forming steel plates and blocks. Plastic Mold Steel Used for injection molds for forming plastic products. Tool Steel Products list Daido's Brand steels list. Global Network for Tool Steel Notable products DHA-HS1 DHA-HS1 provides the highest level of thermal conductivity, which allows shorter cooling time and greater productivity. In addition, its high softening resistance prolongs die life. DHA-HS1, which is ideal for hot stamping dies, can create cost savings in press processing. NAK80 World class stable and reliable quality steel, NAK80, has been selected as the most suitable steel for plastic molds. --> Notable product DCMX First matrix type cold work die steel in Japan It will contribute to both reduction of lead time for die manufacturing and improvement of die life. DHA-HS1 DHA-HS1 provides the highest level of thermal conductivity, which allows shorter cooling time and greater productivity. In addition, its high softening resistance prolongs die life. DHA-HS1, which is ideal for hot stamping dies, can create cost savings in press processing. NAK80 World class stable and reliable quality steel, NAK80, has been selected as the most suitable steel for plastic molds. DHA-WORLD Daido Steel's high-reliable conventional hot work die steel, DHA-WORLD is suitable material for die cast molds. It is easily heat-treated and able to gain fine structure to the center as well as high toughness. 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