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Grade WP316L
USA UNS S31603
AISI
American Iron and Steel Institute		 316L
Corresponding Standard ASTM A403/A403M-2022
Wrought Austenitic Stainless Steel Piping Fittings
Classification Austenitic Stainless Steel
WP316L 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
WP316L Mechanical Properties
condition Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
%
Pipe Fittings ≥485 ≥170 Standard round specimen, or small specimen, or strip specimen
L0=4D
long: ≥28
tr: ≥20
1 Approximate Comparison Table Austenitic Stainless Steel
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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