Steel Grade			Comparable Standard AISI	Delivery Condition	Chemical Composition %											Price
					C	Si	Mn	Ni	Cr	S	W	Mo	V	Co	Al
Charging list of milling and grinding steel block
Carbon Steels
JIS	S50C	Medium Carbon Steel	1050	170~190HB	0.50	0.30	0.80
ML	P1	Modified Medium Carbon Steel	1055	175~190HB	0.55	0.22	0.6	0.03	0.05	0.01
Prehardened Plastic Mould Steels
ML	638	Prehardened Mould Steel	P20	Prehardened 257~300HB	Patent Pending
ML	P20	Prehardened Mould Steel	P20	Prehardened 257~300HB	Patent Pending
ML	2311	Prehardened Mould Steel	P20	Prehardened 280~325HB	0.37		0.78		1.69			0.38
ML	738	Prehardened Mould Steel	P20 + Ni	Prehardened 290~330HB	0.36		1.30	0.97	1.88			0.29
ML	738H	Prehardened Mould Steel	P20 + Ni	Prehardened 330~370HB	0.36		1.30	0.97	1.88			0.29
ASSAB	718	Prehardened Mould Steel	P20	Prehardened 290~330HB	0.37		1.40		2.00			0.20
ASSAB	718H	Prehardened Mould Steel	P20	Prehardened 340~380HB	0.37		1.40		2.00			0.20
DAIDO	P5	Prehardened Mould Steel	P20	Prehardened 280~310HB	0.30	0.50	0.90	0.30	2.50			0.40	0.15
DAIDO	NAK-80	Prehardened Mould Steel	P21	Prehardened 38~41HRC	0.12	0.35		3.30							0.95
DAIDO	NAK-PRM	Prehardened Plastic Mould Steel	特殊	Prehardened 37~43HRC	Ni-Cu-Al系時效硬化鋼
	2311	Prehardened Mould Steel	P20	Prehardened 290~330HB	0.40	0.30	1.45		2.00			0.20
	738	Prehardened Mould Steel	P20 + Ni	Prehardened 290~330HB	0.39		1.47	1.00	1.90			0.20	P<0.020
	738H	Prehardened Mould Steel	P20 + Ni	Prehardened 330~370HB	0.39		1.47	1.00	1.90			0.20	P<0.020
Cold Work Steels
ASSAB	DF-2	Oil Hardening Steel	01	Annealed 190HB	0.90		1.20		0.50		0.50		0.10
ASSAB	XW-5	Chromium Steel Alloy with tungsten	D6	Annealed 240HB	2.05	0.30	0.80		12.50		1.30
DAIDO	DC-53	High-Chromium Steel	D2	Annealed 210HB	Patent Pending
Stainless Mould Steels
ML	420H	Prehardened Stainless Mould Steel	420	Prehardened 270~310HB	0.36		0.51		12.70
ML	2316 ESR	Stainless Mould Steel	420	Annealed ≤235HB	0.36			1.00	16.00			1.30
ML	2316H ESR	Prehardened Stainless Mould Steel	420	Prehardened 290~330HB	0.36			1.00	16.00			1.30
ASSAB	S136 SUP	Stainless Mould Steel	420 modified	Annealed 250HB	0.24		0.50	1.40	13.30			0.35	0.35
ASSAB	S136H SUP	Prehardened Stainless Mould Steel	420 modified	Prehardened 290~330HB	0.24		0.50	1.40	13.30			0.35	0.35
ASSAB	S136 ESR	Stainless Mould Steel	420	Annealed 215HB	0.38	0.80	0.50		13.60				0.30
ASSAB	S136H ESR	Prehardened Stainless Mould Steel	420	Prehardened 290~330HB	0.38	0.80	0.50		13.60				0.30
DAIDO	S-STAR ESR	Stainless Mould Steel	420 modified	Prehardened 31~34HRC	0.38	0.90			13.50			0.10	0.30
DAIDO	440C ESR	Martensitic Stainless Steel	420	Annealed 269HB	1.08	1.00	≤1.00		17.00	≤0.03		≦0.75		P≦0.04
	2316H ESR	Prehardened Stainless Mould Steel	420	Prehardened 290~330HB	0.36			1.00	16.00			1.20
	2316 ESR	Prehardened Stainless Mould Steel	420	Annealed 235~250HB	0.36			1.00	16.00			1.20
Hot Work Steels
ML	2344 ESR	Microdized Hot Work Steel	H13	Annealed ≦235HB	0.42		0.39		4.96			1.34	0.99
ASSAB	8407 ESR	Microdized Hot work Steel	H13	Annealed 185HB Microdized	0.37	1.00	0.40		5.30			1.40	1.00
DAIDO	DH31-S	High Durability Hot Work Steel	H13 modified	Annealed 210HB	Patent (0.4C-5.5Cr-3Mo-V)
Machinery Steels
	4140	High Tensile Nickel Chrome Steel	4140	Prehardened 260~310HB	0.42	0.30	0.80		1.10			0.20
	4340	High Tensile Nickel Chrome Steel	4340	Prehardened 260~310HB	0.40	0.25	0.75	1.80	0.80			0.25
Non-ferrous Metal
	Copper		----	Half-hard 75~120HV	Cu 99.95
	HC18(C18000)	High Performance Copper Alloy	----	210HB		0.70		0.25	0.40				Cu 96.40
NGK CADI	BC40	Beryllium Copper Alloy	----	40HRC
	6061-T6	Aluminium Alloy	-----	95HB
Hardness conversion table