State-of-the-art manufacturing technology makes it possible to produce high quality products Aiming to further enhance the reliability and life of dies
Manufacturing Processes Melting / Refining / Casting Hot working 150t electric arc furnace melting Ladle furnace refining RH vacuum degassing Continuous casting Cogging Large-diameter bar rolling Bloom 60t electric arc furnace melting Ladle furnace refining RH vacuum degassing Continuous casting Billet rolling Billet inspection Billet Bar and wire rod rolling Ingot casting Hot extrusion Remelting Ingot Forging Vacuum melting Hot extrusion Powder manufacturing Vacuum melting / Gas atomizing Metal powder Canning Hot isostatic pressing Forging / Rolling
Secondary working Inspection Heat treatment Straightening Straightening and inspection line for flat bars Shot blasting Press straightening Ultrasonic inspection Magnetic particle inspection Rolled flat bars Batch furnace Press straightener Planing Inspection Forged or rolled flat bars and die blocks Turning Forged round bars Inspection Rolled round bars Inspection Peeling Inspection Rolled round bars (Peeled bars) Continuous furnace Roll straightener Inspection Hot-extruded tubes
Applications and Features Cold Working and Pressing Dies Good SKH51 QCM8 QCM7 QC11 QHZ SKD11 Flame hardening steel QF3 QKS3 SKS3 QK3M SKS93 Good Strength QH51 SPM60 SPM30 SPM23 SPMR8 Developed steel Standardized steel Toughness Applications and features of developed steel Sanyo grade Applications Features Pressing dies for drawing, blanking, and bending of Flame hardenable steel with high toughness steel plate, cold forming Wide quenching temperature range and less hardness variation Press, cold forging, fine blanking Matrix-type high steed steel with combining high hardness with toughness Press, cold forging, fine blanking, cutters Pressing dies for automobile parts for heavy machining (bending, deep drawing and blanking dies of high tensile strength steel) Higher hardness, toughness compared with SKD11 Easier electric discharge cutting Higher hardness, toughness compared with SKD11 Good machinability and easier electric discharge cutting P/M high speed steel SPM series Press, cold forging, fine blanking Higher hardness and toughness compared with SKH
Developed steel Standardized steel Hot and Warm Forging DiesGoodGood QH51 SKH51 QHZ QDH For small lot QF5 QDX- HARMOTEX For large dies QDN QD61 QDT High-temperature strength Toughness SKD61 QT41- HARMOTEX Applications and features of developed steel Sanyo grade Applications Features Hammer Press, hammer Combination of high toughness and softening resistance Combination of the toughness of SKT4 and the high-temperature strength of SKD61 Press Press, hot/warm forging Press, hot former, hot/warm forging Suitable for large dies Higher hardenability, toughness, and superior nitriding property compared with SKD61 Higher toughness and softening resistance than SKD61 Excellent heat-check resistance Combination of the toughness of SKD61 and the high-temperature strength of SKD7(3Cr-3Mo steel) Press, hot former, hot/warm forging Press Matrix-type high steed steel combining high toughness with high-temperature strength Suitable for multikind and small-quantity production
Applications and Features Hot Extrusion Dies Developed steel Standardized steel Good For small lot QDH QF5 QD61 SKD61 QDX- HARMOTEX For large dies QDN QT41- HARMOTEX Applications and features of developed steel High-temperature strengthgood Toughness Sanyo grade Applications Features Subsidiary tools for aluminum extrusion Aluminum extrusion (for large dies) Aluminum, copper, zinc and magnesium extrusion Combination of high toughness and softening resistance Suitable for large dies Higher hardenability, toughness, and superior nitriding property compared with SKD61 Higher toughness and softening resistance than SKD61 Excellent heat-check resistance Aluminum extrusion (mass production, high precision), steel and copper extrusion mandrels Similar toughness and higher strength at high-temperature compared with SKD61 Aluminum extrusion(for prototypes, small lots), subsidiary tools Similar hardenability and toughness to SKD61
Developed steel Standardized steel Good QHZ Casting Dies High-temperature strength QDH QD61 SKD61 QDN QD61-R QDX- HARMOTEX QDN1-R Good Toughness Applications and features of developed steel Sanyo grade Applications Features Large dies, squeeze dies Higher toughnessand superior nitriding property compared with SKD61 Large dies, squeeze dies High-performance dies, precision dies, squeeze dies Precision dies, high-silicon type aluminum dies High-silicon type aluminum dies, pins and sleeves For prototypes, small lots, holder plates Higher toughness and greater high-temperature strength compared with SKD61 Higher toughness and softening resistance than SKD61 Excellent heat-check resistance Similar toughness and higher strength at high-temperature compared with SKD61 Matrix-type high speed steel combining high toughness with high-temperature strength Pre-hardened (hardness 30 33HRC), with superior machinability and toughness
Applications and Features Plastic molds SC SCM Machinability PCM40 Mirror finishability Sanyo grade Applications Features Wear resistance Applications and features of developed steel Precision and general-use plastic molds, rubber molds Precision and general-use plastic molds, rubber moldsgood PCM40S Developed steel SUS Mirror finishability Good Pre-hardened with hardness as hard as 40HRC Excellent machinability, good weldability and surface workability Pre-hardened with hardness as hard as 40HRC Excellent mirror finishability, easier electric discharge cutting, good weldability and surface workability
Classification Diagram Developed steel (+Co) High speed steel W-type (+Co) Heat resistance (+C, V) (Wear resistance) (+C, V) (+C, V) (+C, V) Mo-type QH51 (+Co) (+Co) (+C, W, V, Co) (Toughness) P/M-type SPM23 (+MO, -W) (+Co) SPM30 (+Co, Mo) (+C, Mo, V, Co) SPM60 SK 120 Semi-high speed steel Matrix-type QHZ (+Cr, -W) Toughness and corrosion resistance SPMR8 (-C, Cr, +Mo) Hardness and toughness QCM8 Cold working die steel Machinability QCM7 SK 105 (+C, Cr) Wear resistance QC1 (-C, Cr, +Mo, V) Toughness QC11 (-C, Cr) Toughness W-type QK3M SKD 4 (+W) Wear resistance QKS3 Hot working die steel Mo-type (+Cr) Hardenability (+W, Co) QDH (+W) Hardness and wear resistance QD62 SKD62 (+C) Hardness QD62HC Cr-type Precipitation hardening type (+Mn) QDA61 (+V) (+C, -Cr, Mo, V) QD61 QF5 (-Si) Toughness QDN (+Mo) Strength QDN1-R (+Mo) Strength QDX QDX-HARMOTEX Ni-added type (+Ni) Toughness (+Cr) Hardenability QT41- HARMOTEX (+Cr, Mo) Strength QDT (+Si, Mn, Cr, Mo) Flame hardenability QF3 Plastic mold steel (+Ni, Cu, Al) Mirror finishability and machinability PCM40 (-S) Mirror finishability PCM40S
QK3M QKS3 Hot working die steel Cold working die steel Chemical Compositions Chemical Composition Sanyo Category grade Compatible JIS grade Others QC1 QC11 QCM8 QCM7 QF3 QD61 QDA61 QD62 P/M high speed steel QD62HC QDT QT41- HARMOTEX QDN QDX- HARMOTEX QDH QF5 Plastic mold steel PCM40 PCM40S High speed steel QHZ QH51 Matrix-type SPM23 SPMR8 SPM30 SPM60 Effect of alloy elements C, V, Nb, W, Mo, Cr Improvement of hardness and wear resistance Cr, Si, Al Improvement of oxidation resistance W, Mo, Co, V, Cr, Si Improvement of heat resistance Mo Prevention of temper brittleness Nb, V, Mo Structure refining Mn, Cr, Mo, Si, Ni Improvement of hardenability
Heat treatment conditions Sanyo Hardness Remarks Compatible Category grade Annealing Quenching Tempering JIS grade cooling Oil quenching QK3M Oil quenching/salt bath 23 times Matrix-type QHZ Oil quenching/salt bath 3 times QH51 Oil quenching QKS3 Oil quenching 2 times 2 times QC1 QC11 QCM8 2 times QCM7 Flame hardenable QF3 Slow Oil quenching Oil quenching 2 times 2 times 2 times 2 times QD61 QDA61 QD62 QD62HC Oil quenching 2 times Pre-hardened QDT Oil quenching 2 times Pre-hardened QT41- HARMOTEX Oil quenching/ 2 times 2 times QDN QDX- HARMOTEX Oil quenching/ 2 times For dia. 150Oil quenching is recommended QDH 2 times QF5 Pre-hardened PCM40 Pre-hardened PCM40S Oil quenching/salt bath Oil quenching/salt bath Oil quenching/salt bath Oil quenching/salt bath 3 times 3 times 3 times 3 times SPM23 SPMR8 SPM30 SPM60 Plastic mold steel P/M high speed steel High speed steel Hot working die steel Cold working die steel
Heat Treatment Die steel Quenching (Aiming at 1,025 Slow heating (Forced cooling) Oil quenching Salt bath Holding time at quenching temperature: Atmosphere-controlled furnace 30min/25mm Salt bath 30min/25mm immersion time Vacuum furnace 4560min/25mm Note: To prevent quench cracking, tempering should be performed after quenching as soon as the material temperature drops to between 100 and 50. Tempering Cold working die steel Hardness Tempering temperature Hot working die steel Hardness Tempering temperature
Matrix-type high speed steel Quenching Holding time Slow heating Oil quenching Salt bath Holding time in salt bath at quenching temperature Thickness Holding time Tempering Hardness Tempering temperature
Properties Cold working die steel Quenched and tempered hardness Hot working die steel Hardness Tempering temperature Hardness Tempering temperature Impact property Impact property Charpy impact value Test specimen:10r C-notched Charpy impact value Test specimen: 2mm U-notched Specific wear Hardness Wear resistance Ohgoshi-type abrasive test Friction distance Final load Friction ring Friction speed Hardness Hardness Holding time Softening resistance Test temperature
Production Range Round bars Rolled Forged Flat bars and Blocks To be confirmed Rolled Forged To be confirmed Tubes Outer dia. Inner dia. Production range may differ depending on the grade required. For dimensions not provided, please contact us.
Choice Materials from Sanyo Special Steel Die casting die steel with outstanding strength and toughness Heat checking comparison of QDX-HARMOTEX Hot working die steel for longer die life Cold working die steel with high hardness and toughness Photograph of structure and cross-sectional hardness distribution of QT41-HARMOTEX Microstructure Hardness and toughness Charpy impact value Extension of die life Hardness
Plastic mold steel with excellent mirror finishability Manufacturing process We successfully eliminated remelting process in the manufacture of PCM40S. Melting Refining Vacuum Ingot ESRVAR Rolling, degassing casting Remelting Forging Melting Conventional material Refining Vacuum degassing Ingot casting ESRVAR Remelting Rolling, Forging Hot working die steel with excellent high temperature strength and toughness Heat check resistance Testing condition Cooling Heating Av. depth Max. depth Matrix-type high speed steel with excellent toughness and high temperature strength Depth of heat check Hardness Softening resistance Holding time Test temperature
(079)235-6003( 代表 ) (079)234-8571 HEAD OFFICE & WORKS (+81)79-235-6003 (+81)79-234-8571 Special Products Sales Department Sanyo Special Steel Trading (Shanghai) Co., Ltd. Unit1504, TowerC, The Place, No.150 Zunyi Rd., Shanghai, 200051, China PHONE: (+86) 21-5396-5666 FAX: (+86) 21-5396-6226 Sanyo Special Steel U.S.A., Inc. 445 Park Avenue, Room 2104, New York, NY 10022, U.S.A. PHONE: (+1) 212-935-9033 FAX: (+1) 212-980-8838 16.3.2000