MATERIAL COMPARISON TABLE
national	standard	chrome	carbon				stainless
China	YB	GCr15	10	15	45	85	1Cr18Ni9	0Cr19Ni9	0Cr17Ni12Mo2	3Cr13	9Cr18
USA	AISI	E52100	1010	1015	1045	1084	302	304	316	420	440C
Japan	JIS	SUJ2	S9CK	S15CK	S45C	SUP3	SUS302	SUS304	SUS316	SUS420J2	SUS440C
Germany	DIN	100Cr6	CK10	CK15	CK45		X12CrNi188 8	X5CrNi189	X5CrNiMn18	X30Cr13
		1.3505					1.4300	1.4301	10(1.4401)	1.4028