F837 Group 1-CW XM1 S20300 - ASTM F837-2013(R2018)

Grade	F837 Group 1-CW XM1
USA UNS	S20300
Corresponding Standard	ASTM F837-2013(R2018) Stainless Steel Socket Head Cap Screws
Classification	Austenitic Stainless Steel

F837 Group 1-CW XM1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo ^①
Minimum Value	-	-	5	-	0.18	16	5	1.75	-
Maximum Value	0.08	1	6.5	0.04	0.35	18	6.5	2.25	0.5

① At manufacturer’s option, determined only when intentionally added.

F837 Group 1-CW XM1 Mechanical Properties

Nominal thread diameter in.	Mark	Tensile Strength σ_b ksi	Yield Point σ_s ksi	Elongation or Extension Rate δ %	Hardness HBW
0.060~0.750 (full size product)	F837E	≥80		Extension≥0.4D in.	core hardness HV: ≥150 HRA: ≥50
0.060~0.750 (mechanical specimen)	F837E	≥80	≥40	≥25

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

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