304S12 - BS 970-4-1970

Grade	304S12
Corresponding Standard	BS 970-4-1970 Specification for Wrought steels in the form of blooms,billets,bars and forgings--Part 4:Valve steels
Classification	Austenitic Stainless Steel

304S12 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^◎	Mo ^◎	Ti ^◎	Nb ^◎
Minimum Value	-	0.2	0.5	-	-	17.5	9	-	-	-	-
Maximum Value	0.03	1	2	0.045	0.03	19	12	0.5	0.7	0.1	0.2

304S12 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW
Steel	Softening treatment	≥47kgf/mm2 （≥461MPa）	≥17 kgf/mm2 （≥167 MPa）	≥40	≤183

• The letters P, R, S and T in the table indicate the range of tensile strength of quenched and tempered steels.

• If bars are straightened by reeling or cold rectification the surface becomes work-hardened and the specified maximum Brinell hardness to be obtained on such bars shall be agreed between the manufacturer and the purchaser.

1 Approximate Comparison Table Austenitic Stainless Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

United Kingdom

ISC

CNS

JIS

ASTM

UNS

ISO

Numerical Grade

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

BS EN/BS

022Cr19Ni10
(00Cr19Ni10)

S30403

304L

SUS 304L

STS 304L

304L

S30403

X2CrNi 19-11
X2CrNi 18-9

4306-304-03-I
4307-304-03-I

X2CrNi 19-11
(X2CrNi 18-9)

1.4306

Z2CN 18-10
Z2CN 18-09

X2CrNi 19-11
X2CrNi 18-9

1.4306
1.4307

03Х18Н10

304S12

2 Approximate Comparison Table Austenitic Stainless Steel

China	Japan	United States	International Organization for Standardization	Germany	France	Russia	United Kingdom
GB	JIS	ASTM/AISI	ISO	DIN EN/DIN	NF EN/NF	GOST	BS EN/BS
00Cr19Ni10	SUS304L	304L	Type 10 (ISO 683-13-1986)	X2CrNi189	Z2CN18.09	03X18H11	304S12

304S12 Corresponding Standards(Same grade name, different standards)

1	BS
	304S12
2	BS 970-4-1970
	304S12

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!