F837 Group 1-CW 303 S30300 - ASTM F837-2013(R2018)

Grade	F837 Group 1-CW 303
USA UNS	S30300
Corresponding Standard	ASTM F837-2013(R2018) Stainless Steel Socket Head Cap Screws
Classification	Austenitic Stainless Steel

F837 Group 1-CW 303 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo ^①
Minimum Value	-	-	-	-	0.15	17	8	-
Maximum Value	0.15	1	2	0.2	-	19	10	0.6

F837 Group 1-CW 303 Mechanical Properties

	Tensile Strength σ_b ksi	Yield Point σ_s ksi	Elongation or Extension Rate δ %	Hardness HBW
0.060~0.750 (Full size)	≥80			HRA ≥50
0.060~0.750 (Machined)	≥80	≥40	≥25	≥50

• Core hardness is only required when full-size product tensile testing cannot be accomplished.
• D denotes nominal thread size

Approximate Comparison Table Austenitic Stainless Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

United Kingdom

ISC

CNS

JIS

ASTM

UNS

ISO

Numerical Grade

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

BS EN/BS

Y12Cr18Ni9
(Y1Cr18Ni9)

S30317

303

SUS 303

STS 303

303

S30300

X10CrNiS 18-9

4305-303-00-I

X8CrNiS 18-9
(X10CrNiS 18-9)

1.4305

Z10CNF 18-09

X8CrNiS 18-9

1.4305

303S21

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