Mold Steel Brands Comparision Table Classification Hardness for use (HRC) Applicable standards Material manufacturer JIS AISI DIN Kobe Steel Hitachi Steel Daido Steel Bohla Uddeholm Aichi Steel Nihon Kosyuha Steel Nippon steel & sumitomo metal Sanyo special Steel Nachi -Fujikoshi Name Material No. steel As rolled 13 SC Series 1055 1050 CK55 C55 1.1203 1.0535 Pre Hardened steel 13 KTSM21 KTSM2A KTSM22 AUK1 KPM1 KPMAX SD17 SD18T PC55 28 SCM Series 4140 42MrCo4 1.7225 KTSM31 PDS3 AUK11 SD61 33 SCM (Improved) P20 <Supeior weldability> HPM7 PXA30 KPM30 33 SCM (Improved) P20 35MrCo4 1.2330 KTSM3M PLAMAX M238 IMPAX HH (35~40HRC) SD70 SD100 40 SCM (Improved) P20Ni Series HPM- MAGIC NIMAX pre- cipitation hardening P21 <Free-machining> HPM1 NAK55 KAP65 PCM40 <Mirror finishing property> HPM-PRO NAK80 KAP88 PCM40S P21 <Rush - prevention property> CENA1 SKD61 (Improved) (H13) (X40CrMoV51) (1.2344) FDSC DF2H KAP90F Quenched and tempered steel 50 SKD61 Series H13 X40CrMoV51 1.2344 DAC DHA DHA1 ORVAR-2M W302 SKD61 KDA QD61 56~62 SKD11 (D2) (X155CrVMo121) (1.2379) SLD DC11 SKD11 KD11 QC11 CDS11 SKD11 (Improved) HPM31 PD613 DC53 CALDIE AUD11 KD21 QCM8 SKD12 A2 DC12 RIGOR KD21 Stainless steel Pre hardened 33 SUS Series 420J2 420 (X38Cr13) (1.4031) HPM38 S-STAR STAVAX M303 420M PROVA-400 SUS Series (free-machining) HPM77 G-STAR RoyAlloy 35 SUS Series 630 S17400 PSL NAK101 U630 QSSH6 40 SUS Series EDRO400 M303-HH 52 SUS Series 420J2 420 (X38Cr13) (1.4031) HPM38 HPM38S S-START D-STAR STAVAX M333 PROVA-400 57 SUS Series 440C 440C X105CrMo17 1.4125 SUS440C SUS440C M340 ELMAX (Power metal) QPD5 SPC5 (Power metal) 440C PROVA-500 (Power metal) steel Age hardened 50 or more Maraging steel YAG MAS1C KMS18-20 EXEO-M21 40 Non-magunetic steel HPM25 NMS1 steel Copper Alloy HIT71 HIT72 HIT73 MOLDMAX HH/LH/XL/V

Stamping Die Steel Brands Comparision Table Classification Hardness for use (HRC) Applicable standards Material manufacturer equivalent JIS equivalent AISI DIN Hitachi Steel Daido Steel Bohla Uddeholm Nihon Kosyuha Steel Sanyo special Steel Aichi Steel Nachi -Fujikoshi Name Material No. steel Carbon tool 53~61 SK105 Series W1-10 C105W1 1.1645 YK3 QK3 SK3 steel Alloy tool 56~62 SKS93 (W5) YCS3 YK30 K3M QK3M SK301 SKS3 (O1) 100MnCrW4 1.2510 SGT GOA KS3 QKS3 SKS3 SKD1 D3 X210Cr12 1.2080 CRD DC1 KD1 QC1 SKD1 SKD11 (D2) (X155CrVMo121) (1.2379) SLD DC11 K110 KD11 QC11 SKD11 CDS11 SKD11 (Improved) High hardness For 8% cr high temp. tempering SLD8 DC53 K340 KD21 QCM7 QCM8 AUD15 AUD11 MDS9 Free machining & low quenching strain & coated long life SLD-MAGIC Free- machining KD11S Middle Cr SKD ARK1 Matrix Series DCMX CALDIE Others NOGA SXACE AUD11X Power dies steel VANADIS4E Nitriding power steel VANCRON40 SKD12 A2 X100CrMoV51 1.2363 DC12 RIGOR KD12 Flame hardening steel HMD5 GO5 FH5 KRCX QF3 SX105V SX4 Low temperature air-cooled quenching ACD37 GO4 KSM High impact steel YSM GS5 KTV5 QF1 AKS4 Pre hardened steel 33 SCM (Improved) P20 <Supeior weldability> HPM7 PXA30 KPM30 37 SCM (Improved) P20 35CrMo4 1.2330 IMPAX HH (35~40HRC) 40 SCM (Improved) P20 <Free machining> GO40F Precipitation hardening P21 <Free machining> HPM1 NAK55 KAP65 PCM40 <Mirror finishing property> HPM-PRO NAK80 KAP88 PCM40S P21 <Rust - preventation property> CENA1 High-speed tool steel 55~68 SKH51 M2 S6-5-2 1.3343 YXM1 MH51 S600 H51 QH51 SKH9 SKH55 Series M35 S6-2-5 1.3243 YXM4 MH55 S705 HM35 HM35 HS53M SKH57 Series S10-4-3-10 1.3207 XVC5 MH8 MV10 HS93R DURO-SP Matrix Series High-speed YXR3 YXR33 YXR7 DRM1 DRM2 DRM3 W360 KMX1 KMX2 KMX3 QHZ DURO-F1, F2, F7 DURO-V1, V5 speed tool steel Powder metal high- 58~70 SKH40 1.3244 HAP40 DEX40 VANADIS30 FAX38 M3:2 HAP10 DEX20 VANADIS23 ASP23 FAX31 HAP50 HAP72 DEX60 VANADIS60 Super Clean ASP30 ASP60 SPMR8 FAX55 FAXG2 Matrix Series powder metal high-speed HAP5R DEX-M1 DEX-M3