Please be informed that there will be no shipment from Japan during the upcoming year-end and New Year holiday period. However, Singapore’s stock items are available during these periods. More details.
Notice of End of Sales for Economy Series Pneumatic Equipment Category. More details.

Mold Material Comparison Chart

Brand Comparison Chart—Steel for Cold Work Molds
Brand Comparison Chart—Steel for Hot-forging Molds
Brand Comparison Chart—Steel for Die-cast Molds
Brand Comparison Chart—Steel for Plastic Molds

Brand Comparison Chart—Steel for Cold Work Molds

Classification	JIS Other		Company name														Rockwell hardness (HRC)
Classification	JIS Other		Hitachi Metals	Aichi Steel	Kanto Special Steel Works	Kobe Steel	Sanyo Special Steel	Daido Steel	NKK	Nippon Koshuha Steel	Fujikoshi	Mitsubishi Steel	Riken Seiko	Bohler	Uddeholm	ThyssenKrupp Japan	Rockwell hardness (HRC)
Carbon tool steel	SK3			SK3			SK3	YK3	SK3	K3		SK3		K990		THYRO-DUR1615	58～61
Alloy tool steel	SKS93			SK301			QK3M	YK30	NKG93	K3M	SK3M	SKS93					55～60
	SKS3			SKS3			QKS3	GOA	NKE3	KS3	SKS3	SKS3		K460		THYRO-DUR2419	55～62
	SKS31			SKS31				GO31		KS31	SKS31			K465		THYRO-2510	55～62
	SKD1		CRD	SKD1	RFB		QC1	DC1		KD1	CDS1	R32		K100		THYRO-DUR2080 THYRO-DUR2135	55～62
	SKD11		SLD	SKD11			QC11	DC11		KD11	CDS11	R31	RD11	K105		THYRO-DUR2379	55～62
	SKD11 (renewed)		SLD8				QCM8 QCM10	DC53		KD11S KD21	MCR12 MDS9			K340	SLEPNER		55～62
	SKD12		SCD	SKD12			QC12	DC12		KD12	CDS12			K305	RIGOR	THYRO-DUR2363	55～62
	AISID 2		SLD2	A-D2			QCD2	DC3		KD11V				K105 K110		THYRO-DUR2379	55～62
	Pre-hardened steel	40HRC	HPM1 HPM2T			KTS M40EF	PCM40	NAK55 GO40F		KAP					IMPAX RAMAX S		40
		33HRC	HPM2			KTS M3M		PX5		KPM30						THYRO-PLAST2311,2312,2738	33
		33HRC	HPM7					PX30									33
	Flame-hardened steel		HMD5 HMD1	SX105V SX4			QF3	GO5		FH5					FERMO CALMAX		55～62
	High temperature tempering steel		SLD8	AUD15			QCM8	DC53 DCMX	NKD101	KD11S	MCR12						62～64
	Low temperature hardened steel		ACD37	AKS3				GO4		KSM							58～62
	Impact-resistant steel		YSM	AKS4			QF1	GS5		KTV5	SRS6			K630	PREGA COMPAX	THYRO-DUR2550	55～60
	Other		ACD8 ARK1 SLD10	AUD11 SX5 SX44 TCD		KAD181 (powder)		DCLT		KDQ1 KDQ2 KDQ3 KD23A	ICS22 MCR1			K190PM	VIKING CALMAX ELMAX (powder) VANADIS4 (powder) VANADIS6 (powder) VANADIS10 (powder)	THYRO-DUR2210 THYRO-DUR2510 THYRO-DUR2833 THYRO-DUR2842
High-speed tool steel	SKH51		YXM1				QH51			H51	SKH9		RHM1	S600		THY-RAPID3341 THY-RAPID3343	55～65
	SKH51 (renewed)										SKH9D						57～66
	SKH52		YXM2														57～66
	SKH55		YXM4								HM35		RHM5	S705		THY-RAPID3243 THY-RAPID3245	57～66
	SKH55 (renewed)									HM35	HS53M						57～66
	SKH57		XVC5							MV10	HS93R		RHM7	S700		THY-RAPID3207	55～66
	SKH57 (renewed)		YXM60								FM38V HS98M						57～68
	Matrix		YXR3 YXR7 YXR33				QHS GHZ	DRM1 DRM2 DRM3		KMX1 KMX2 KMX3	MDS1 MDS3 MDS7						55～64
	Other									S70	HSU2C
	High-speed tool powdered steel		HAP10 HAP50 HAP72			KHA32 KHA60 KHA30 NKHA33N	SPM23 SPM30 SPM60	DEX20 DEX60 DEX80 DEX-M1 DEX-M3			FAX31 FAX55 FAXG1 FAXG2			S390 S590 S690 S790	ASP23 ASP30 ASP60	TSP4 TSP30	58～70

Brand Comparison Chart—Steel for Hot-forging Molds

Classification	JIS Other	Company name														Rockwell hardness (HRC)
Classification	JIS Other	Hitachi Metals	Aichi Steel	Kanto Special Steel Works	Kobe Steel	Sanyo Special Steel	Daido Steel	NKK	Nippon Koshuha Steel	Fujikoshi	Mitsubishi Steel	Riken Seiko	Bohler	Uddeholm	ThyssenKrupp Japan	Rockwell hardness (HRC)
Alloy tool steel	SKD4	YDC	SKD4			QD4	DH4		KD4	HDS4	HD25		W105		THYRO-THERM2567	40～50
	SKD5	HDC	SKD5				DH5		KD5	HDS5	HD26		W100		THYRO-THERM2581	45～50
	SKD6				KTD1		DH6		KD6	HDS6	HD21A		W300		THYRO-THERM2343EFS	40～52
	SKD6 (renewed)													DIEVAR		40～52
	SKD61	DAC	SKD61		KTD2	QD61	DHADHA1		KDA	HDS61	HD21AX		W302		THYRO-THERM2344EFS	40～52
	SKD61 (renewed)	DAC3 DAC10 DAC55	AUD61			QDA61	DHA2 DH21 DH31-S		KDA1 KDA5 KDA MAX					ORVAR2M		40～52
	SKD61 (renewed)	DAC3 DAC10 DAC55	AUD61			QDA61	DHA2 DH21 DH31-S		KDA1 KDA5 KDA MAX					ORVARSupreme		40～52
	SKD62	DBC	SKD62		KTD3	QD62	DH62		KDB		HD21B				THYRO-THERM2606	40～52
	SKD7	YEM	AUD7			QD10	DH72		KDH1		HD23		W320		THYRO-THERM2365	40～50
	SKD7 (renewed)	DAC40YEM-K	AUD71 AUD72			QDH	DH71 DH32 DH73	HDN1	HD23M							40～50
	SKD8	MDC	SKD8				DH41		KDF		HD27					40～50
	SKD8 (renewed)	MDC-KDAC45					DH42		KDF2		HD28(NT200)					40～50
	SKT4	DM	SKT4A		KTH3	QT41	GFA		KTV		HD13T		W500		THYRO-THERM2713 THYRO-THERM2714	38～45
	SKT4 (renewed)	YHD26 YHD28	AUD60			QDT	GF78		KTV2		HD14M HD20B					38～45
	Precipitation-hardened steel	YHD3	AUD91 MPH-K				DH76				HD22B
	Other	FDAC E-DAC			KTH2	QF5	DH2F DH21 DH31-S DH32 DH42 DH71 DH31-EX DHA-PX DH76 DHA-WORLD		KAP90F				W335 W303 W321		THYRO-THERM2367 THYRO-THERM2885
High-speed tool steel	SKH51	YXM1				QH51			H51	SKH9		RHM1	S600		THYRO-RAPID3343	55～63
	SKH51 (renewed)									SKH9D						57～65
	SKH55	YXM4							HM35	HM35		RHM5	S705		THYRO-RAPID3243	57～62
	Matrix type	YXR33	QHZ				DRM1 DRM2 DRM3			MDS1						53～65

Brand Comparison Chart—Steel for Die-cast Molds

Classification	JIS Other	Company name														Rockwell hardness (HRC)
Classification	JIS Other	Hitachi Metals	Aichi Steel	Kanto Special Steel Works	Kobe Steel	Sanyo Special Steel	Daido Steel	NKK	Nippon Koshuha Steel	Fujikoshi	Mitsubishi Steel	Riken Seiko	Bohler	Uddeholm	ThyssenKrupp Japan	Rockwell hardness (HRC)
General steel	SKD61	DAC	SKD61		KTD2	QD61	DHA DHA1		MFA	HDS61			W302		THYRO-THERM2344 EFS	40～50
	SKD61 (renewed)					QDA61			KDA1					ORVAR		40～50
	SKD6				KTD1		DH6		KD6				W300		THYRO-THERM2343 EFS	40～50
	Free-cut pre-hardened steel	FDAC				QD6F	DH2F		KDASS							38～42
	Other						DHA-WORLD		KDA5 MFA-K
Large object steel	SKD61 (renewed)	DAC55	AUD61			QDN	DH31		MFA-H							44～48
Large object steel	Other						DHA-WORLD DHA-EX DHA-FX		MFA-KH				W303	VIDAR
Precision steel	SKD7	YEM	AUD7			QD10	DH72		KDH1	HDS7			W320		THYRO-THERM2365	42～50
	SKD7 (renewed)					QDH			KDW				W321		THYRO-THERM2885	42～50
	Other	DAC10 DAC55					DH21 DH33		MFA-K	HDN1						48～53
High melting point steel	SKD8	MDC					DH41		KDF							42～50
	SKD8 (renewed)	DAC45					DH42		KDF2							47～51
	Other														THYRO-THERM2367,2885
Special steel	Maraging steel	YAG	AMAR			QM300	MAS1C		KMS18-20	NAG21			W720		THYRO-THERM2799	50～57
	SKH51	YXM1				QH51			H51	SKH9		RHM1	S600		THY-RAPID3343	55～60
	Matrix type	YXR33				QHZ	DRM1		KDW2		MDS1					52～58
	SCM type	HPM2 HPM7			KTS M3M		PX5 PXA30		KPM30					IMPAX HOLO DAX	THYRO-PLAST2312	30～33
	Other													HOTVAR		30～40

Brand Comparison Chart—Steel for Plastic Molds

Classification	JIS Other	Company name																	Rockwell hardness (HRC)
Classification	JIS Other	Hitachi Metals	Aichi Steel	Kawasaki Steel	Kobe Steel	Sanyo Special Steel	Daido Steel	NKK	Nippon Koshuha Steel	Nippon Steel	Mitsubishi Steel	Sumitomo Metal Industries	Chubu Steel Plate	Topy Industries	Japan Steel Works	Bohler	Uddeholm	ThyssenKrupp Japan	Rockwell hardness (HRC)
As-rolled steel	SC type			RMS	S50C S55C			S45C–S55C (thick plate)		S45C–S55C (thick plate)			S50C	S50C				THYRODUR1730	13
As-rolled steel	SCM type			SCM435 SCM440	SCM435 SCM440			SCM415 SCM435 SCM440		SCM440			SCM440					THYROPLAST2341	13
Pre-hardened steel	SC type		AUK1	RMS53CN RMS55CN	KTS M2A KTSM21 KTS M22 U2000	PC55	PDS1		KPM1	N-PU K30	MT50C	SD10 SD17 SD21			NPD2 NPD2S		UHB11		13
	SCM type (AISIP20 type)		AUK11	RMS-P28 RMS-30PH	KTS M3A KTS M31 U3000	PCM28	PDS3			N-PU K40		SD61 SD90 SD200			NPD3 NPD3S		CALMO		28
	SCM (renewed)	HPM2 HPM7			KTS M3M U3500		PX5 PXA30		KPM30		MU-M MU-P MT24T	SD70 SD100			NPD 3MF NPD 3M NPD 5S	M200M238	PLAMAX IMPAX	THYROPLAST2738,2311,2312	33
	SUS type (free-cut)	HPM7 HPM38 HPM77					S-STAR D-ATAR G-STAR		KSP1						NPD7	MAX0 MAX1 MAX4 MAX3	STAVAX RAMAX S	THYROPLAST2316	33
	SUS type	PSL				QSH6	NAK101		U630						NPD8	N700			35
	SKD61 (renewed)	FDAC	AU D61			QD6F	DH2F		KDA						NPD5	W302	ORVAR		40
	AISIP21	HPM1 HPM-MAGIC CENA1			KTS M40EF KTS M40E	PCM40	NAK55 NAK80 NAX-PRM		KAP KAP2		MEX41					M261		THYROPLAST2711	40
Hardened and tempered steel	SKD11 (renewed)	HPM31 ZDP4 (powder) ZCD-M HAP5R	AUD11		KAD181 (powder)	QCM8	PD613		KD21 KD11S						NPD6 NPD6 MA NPD6 MB	K105 K110 K340	CALMAX RIGOR VANAD IS4 VANAD IS6 VANAD IS10	THYRODUR2379	60
	SUS type	SUS 440C			KAS440 (powder)	QPD5SPC5 (powder)	SUS440C DEX-P1 (powder)		KSP2 KSP3							M340 N685 N690 N695	ELMAX (powder)		57
	SUS type	HPM38 HPM38S				QSD40M	S-STAR D-STAR		KSP1							MAX1 MAX4 MAX3	STAVAX RAMAX S	THYROPLAST2083	52
Aging-treated steel	Maraging steel	YAG		HT210		QM300	MASIC		KMS18-20		DMG series	SMA200 SMA245				V720 V721		THYRODUR2709	53
	SUS type	ASL407
	Non-magnetic steel	HPM75				QSD15									JUS 289S				43
Other		HIT51,52,55 (AI type) HIT71,72,75 (Cu type)															PREMO PRODAX SUPER PRODAX (AI type)