Comparison of steel grades in China and other stamdards

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade	--
Quality carbon structural steel	08F	1008 1010	SPHD SPHE	--	040A10	--	80KП	--
	10	1010	S10C S12C	CK10	040A12	XC10	10	C101
	15	1015	S15C S17C	CK15 Fe360B	08M15	XC12 Fe306B	15	C15E4
	20	1020	S20C S22C	C22	IC22	C22	20	--
	25	1025	S25C S28C	C25	IC25	C25	25	C25E4
	40	1040	S40C S43C	C40	IC40 080M40	C40	40	C40E4
	45	1045	S45C S48C	C45	IC45 080A47	C45	45	C45E4
	50	1050	S50C S53C	C50	IC50 080M50	C50	50	C50E4
	15Mn	1019	--	--	080A15	--	15r	--

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade
Carbon steel	Q195	Cr.B	SS330 SPHC SPHD	S185	040A10 S185	S185	CT1KП CT1CП CT1ПC
	Q215A	Cr.C Cr.58	SS330 SPHC		040A12		CT2KП-2 CTCП-2 CT2ПC-2
	Q235A	Cr.D	SS400 SM400A		080A15		CT3KП-2 CT3CП-2 CT3ПC-2	E235B
	Q235B	Cr.D	SS400 SM400A	S235JR S235JRG1 S235JRG2	S235JR S235JRG1 S235JRG2	S235JR S235JRG1 S235JRG2	CT3KП-3 CT3CП-3 CT3ПC-3	E235B
	Q255A		SS400 SM400A				CT4KП-2 CT4CП-2 CT4ПC-2
	Q275		SS490				CT5П-2 CT5ПC-2	E275A

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade
carbon tool steel	T7(A)	--	SK7	C70W2	060A67 060A72	C70E2U	y7	TC70
	T8(A)	T72301 W1A-8	SK5 SK6	C80W1	060A78 060A81	C80E2U	y8	TC80
	T8Mn(A)	--	SK5	C85W	060A81	Y75	y8r	--
	T10(A)	T72301 W1A-91/2	SK3 SK4	C105W1	1407	C105E2U	y10	TC105
	T11(A)	T72301 W1A-101/2	SK3	C105W1	1407	C105E2U	y11	TC105
	T12(A)	T72301 W1A-111/2	SK2	--	1407	C120E3U	y12	TC120

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade
alloy tool steel	Crl2	T30403(UNS) (D3)	SKD1	X210Cr12	BD3	X210Cr12	X12	210Cr12
	Crl2MolVl	T30402(UNS) (D2)	SKD11	X155CrVMo121	BD2	--	--	160CrMoV12
	5CrNiMo	--	--	--	--	--	5XгM	--
	5CrNiMo	T61206(UNS) (L6)	SKT4	55NiCrMoV6	BH224/5	55nICrMoV7	5XHM	--
	3Cr2W8V	T20821	SKD5	--	BH21	X30WCrV9	3X2B8ф	30WCrV9

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade	--
High-Speed Tool Steel	W18Cr4V	T12001(UNS) (T1)	SKH2	--	BT1	HS18-0-1	P18	HS18-0-1 (S7)
	W18Cr4VCo5	T12004(UNS) (T4)	SKH3	S18-1-2-5	BT4	HS18-1-1-5	--	HS18-1-1-5 (S7)
	W6Mo5Cr4V2	T11302(UNS) (M2)	SKH51	S6-5-2	BM2	HS6-5-2	p6M5	HS6-5-2 (S4)

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade	--
stainless steel	1Cr18Ni9Ti	S32100(UNS) (321)	SUS321	X6CrNiTi 18-10	X6CrNiTi 18-10	X6CrNiTi 18-10	12X18H10T	X6CrNiTi1810 11
	2Cr13	S42000(UNS) (420)	SUS420J 1	X20Cr13	420S37 X20Cr13	X20Cr13	20X13	4
	40Mn	1043	SWRH42B	C40	080M40 1C40	C40	40Г	SL SM
	45Mn	1046	SWRH47B	C45	080M47 2C45	C45	45Г	SL SM
	65Mn	1065	--	--	--	--	65Г A	SL SM TypeSC TypDC

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade	--
Free-cutting structural steels	Y12	1211 G12110(UNS)	SUM12 SUM21	10S20	S10M15	13MF4	A12	10S20
	Y12Pb	12L13	SUM22L	10SPb20	--	--	--	10SPb20 11SMnPb28
	Y20	1117 G11170(UNS)	SUM32	C22	C22 210M15	C22	A20	--
	Y40Mn	1144 G11440(UNS)	SUM43	--	226M44	45MF6.3	A40Г	44Mn28
	Y45Ca	1145	--	C45	C45	C45	--	--
	Y1Cr18Ni9	--	SUS303	X8CrNiS18-9	303S31 303S21	--	--	17

Name	China	U.S.A.	Japan	Germany	Britain	Frence	Russia	ISO
	GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	Г OCT	ISO 630
	Grade	Grade	Grade	Grade	Grade	Grade	Grade	--
Spring steel	85	1084	SUP3	CK85	--	FMR86	--	TypeDC
	55Si2Mn	9260 H92600	SUP6 SUP7	55Si7	251H60	56SC7	--	56SiCr7
	60Si2Mn	H92600	SUP6 SUP7	60SiCr7	25H60	61SiCr7	--	61SiCr7
	55CrMA	H51550 G51550	SUP9	55Cr3	525A58 527A60	55Cr3	--	55Cr3
	60Si2CrVA	--	--	--	--	--	--	--
	50CrVA	H51500 G61500	SUP10	50CrV4	735A51	50CrV4	50xФA	51CrV4