Grade WP317L
USA UNS S31703
AISI
American Iron and Steel Institute
317L
Corresponding Standard ASTM A403/A403M-2022
Wrought Austenitic Stainless Steel Piping Fittings
Classification Austenitic Stainless Steel
WP317L Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value - - - - - 18 11 3
Maximum Value 0.03 1 2 0.045 0.03 20 15 4
WP317L Mechanical Properties
condition Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Pipe Fittings ≥515 ≥205 Standard round sample, or small sample, or strip sample
L0=4D
long: ≥28
tr: ≥20
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 DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
022Cr19Ni13Mo3
(00Cr19Ni13Mo3)
S31703 317L SUS 317L STS 317L 317L S31703 X2CrNiMo 19-14-4
X2CrNiMo18-15-4
X2CrNiMo 18-15-4
(X2CrNiMo 18-16)
1.4438 Z2CND 19-15
Z3CND 19-15-04
X2CrNiMo 18-15-4 1.4438 03Х16Н15М3 2367 317S12
317S11

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