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Home Material ASTM F837-2013(R2018)
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Grade F837 Group 2-CW 316L
USA UNS S31603
Corresponding Standard ASTM F837-2013(R2018)
Stainless steel socket head cap screws
Classification Austenitic Stainless Steel
F837 Group 2-CW 316L Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value - - - - - 16 10 2
Maximum Value 0.03 1 2 0.045 0.03 18 14 3
F837 Group 2-CW 316L Mechanical Properties
Tensile Strength
σb
ksi 		Yield Point
σs
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
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
022Cr17Ni12Mo2
(00Cr17Ni14Mo2) 		S31603 316L SUS 316L STS 316L 316L S31603 X2CrNiMo 17-12-2
X2CrNiMo17-12-3 		4404-316-03-I
4432-316-03-I 		X2CrNiMo 18-14-3
(X2CrNiMo 18-12) 		1.4435 Z2CND 17-13 X2CrNiMo 17-12-2
X2CrNiMo17-12-3 		1.4404
1.4432 		03Х17Н14М2 2353 316S11
316S12
2 Approximate Comparison Table Stainless steels for cold heading and cold extruding
China Japan United States International Organization for Standardization European Standard
GB ISC JIS ASTM/AISI UNS ISO Numerical Grade EN Numerical Grade
022Cr17Ni12Mo2
(00Cr17Ni14Mo2) 		S31603 SUS316L 316L S31603 X2CrNiMo17-12-2 4404-316-03-I X2CrNiMo17-12-2 1.4404
3 Approximate Comparison Table Stainless steels for cold heading and cold extruding
China Japan United States International Organization for Standardization European Standard
GB ISC JIS ASTM/AISI UNS ISO Numerical Grade EN Numerical Grade
022Cr17Ni12Mo2
(00Cr17Ni14Mo2) 		S31603 SUS316L 316L S31603 X2CrNiMo17-12-3 4432-316-03-I X2CrNiMo17-12-3 1.4432

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