Hitachi steel composition

Proterial – Yasugi Hagane. (formerly known as Hitachi steel Mfg.)

	Carbon	Silicon	Manganese	Phosphor	Sulfur	Chromium	Tungsten	Molybdenum	Vanadium	Cobalt	HRC
SUS420J 2 Hitachi	0.26~0.40	1.00	1.00	0.030	0.030	12.0~14.0					54
SUS440A Hitachi	0.60~0.75	1.00	1.00	0.030	0.030	16.0~18.0					56
SUS440C Hitachi	0.95~1.20	1.00	1.00	0.030	0.030	16.0~18.0					59
銀1(GIN1)Hitachi	0.80~0.90	0.35	0.45~0.75	0.040	0.020	15.0~17.0		0.3~0.5			57
銀3(GIN3)Hitachi	0.90~1.10	0.35	0.60~1.00	0.040	0.020	13.0~14.5					59
V金1	0.95~1.05					13.0~15.0		0.2~0.4			59
V金5	0.70~0.80					13.0~15.0		0.2~0.4	0.1~0.2		58
V金8	0.85~0.95					13.0~15.0	0.5~1.0	0.2~0.6	0.2~0.4		58
V金10	0.95~1.05					14.5~15.5		0.8~1.2	0.25~0.35	1.3~1.8	59~60
V金10B	0.75~0.85					14.5~15.5		0.8~1.2	0.25~0.35	1.3~1.8	58
V金10W	0.95~1.05					14.5~15.5	0.3~0.4	0.8~1.2	0.25~0.35	1.3~1.8	59~60
ATS314 Hitachi - V金10W + (SECRET)											59~60