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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 Plastic Mold Steel Font Size Normal Large Plastic Mold Steel Daido Steel's tool steels lineup for plastic molding dies includes 40HRC pre-hardened steel grade NAK55/NAK80, quenched and tempered type grades with high hardness, stainless type grades, and other original grades that can provide superior mirror polishability, machinability, and corrosion resistance. It is possible to apply surface treatments such as texturing, nitriding, plating etc. Conceptual diagram --> --> --> --> Products list Grade Brand name Equivalent standard Characteristics Detailed information JIS AISI WNr. Special page Brochure Technical data Type P20modified PX4, PX5 - P20mod. 1.2330mod. ・30HRC Pre-hardened steel PAC5000 - P20mod. 1.2311mod. ・40HRC Pre-hardened steel ・High hardness NAK series NAK55 - P21mod. - ・40HRC Precipitation hardeningsteel ・Easy machining NAK80 - P21mod. - ・40HRC Precipitation hardeningsteel ・High mirror-finish NAK86K - - - ・38HRC Pre-hardened steel ・High mirror-finish ・Excellent corrosion resistance NAK101 SUS630mod. 630mod. 1.4542mod. ・33HRC Pre-hardened steel ・High corrosion resistance Hardened & Tempered type DC53 - - - ・8Cr-2Mo type ・High hardness & toughness PD613 - - - ・High hardness & wear resistance ・High mirror-finish DHA1 SKD61 H13eq. 1.2344eq. ・General-purpose hot work diesteel DH2F SKD61mod. H13mod. 1.2344mod. ・40HRC Pre-hardened steel ・Easy machining StainlessSteel G-STAR SUS420Fmod. 420Fmod. 1.4029mod. ・Easy machining S-STAR SUS420J2mod. 420mod. 1.4028mod. ・Remelted steel ・High mirror-finish MaragingSteel MAS1C - - 1.2709mod. ・High toughness & strength For the latest physical property data, please see "Physical Properties“.Values listed in the brochure may differ. Hot Work Tool Steel Cold Work Tool Steel Plastic Mold 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 J01 時効硬化型プラスチック金型用鋼について 大同特殊鋼技報「電気製鋼」 1974年 45巻 1号 p.44-50 Go to J-STAGE site J02 高硬度・高鏡面プラスチック金型用鋼「PD613」（No. SD2301） 大同特殊鋼技報「電気製鋼」 1982年 53巻 4号 p.304-307 Open PDF file J03 新しいプラスチック金型用鋼「NAK80」「PD555」（No. SD2302） 大同特殊鋼技報「電気製鋼」 1986年 57巻 3号 p.242-247 Open PDF file J04 高耐食プラスチック金型用鋼「STARシリーズ」（No. SD2303） 大同特殊鋼技報「電気製鋼」 2000年 71巻 2号 p.179-181 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 Related Documents No. Title Publication / Source Volume & page Read the document K01 プラスチック金型材と利用技術 大同特殊鋼技報「電気製鋼」 1989年 60巻 4号 p.354-366 Go to J-STAGE site K02 プラスチック成形用金型の補修溶接（No. SD2304） 大同特殊鋼技報「電気製鋼」 1997年 68巻 2号 p.95-104 Open PDF file K03 鏡面磨き時のピンホール発生に及ぼす非金属介在物および炭化物の影響 大同特殊鋼技報「電気製鋼」 2007年 78巻 4号 p.361-368 Go to J-STAGE site 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. Products List Mechanical Construction Steel Stainless Steel Tool Steel Superalloy Strip Forging Die Forging Alloy Powder Welding Wire Titanium & Titanium Alloy Target Material, New Metal Machinery Star LED Point Source LEDs Permalloy foil TOP Products Tool Steel Plastic Mold Steel About DAIDO STEEL Products R&D Investor Relations Sustainability Sustainability --> Students --> Contact Us Quote Site Map Privacy Policy 電子公告 --> Terms of Use Japanese Chinese Copyright©1996-2024 Daido Steel Co., Ltd. search CLOSE Product inquiry