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Grade A249 TP317
USA UNS S31700
Corresponding Standard ASTM A249/A249M-2004
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Classification Austenitic Stainless Steel
A249 TP317 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value - - - - - 18 11 3
Maximum Value 0.08 1 2 0.045 0.03 20 15 4
A249 TP317 Mechanical Properties
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
≥515 ≥205 ≥35 HRB
≤90
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States Germany United Kingdom
GB ISC CNS JIS KS ASTM UNS DIN EN/DIN W-Nr. BS EN/BS
06Cr19Ni13Mo3 S31708 317 SUS 317 STS 317 317 S31700 X5CrNiMo 17-13 1.4449 317S16
2 Approximate Comparison Table
China Taiwan, China Japan South Korea United States Germany United Kingdom
GB ISC CNS JIS KS ASTM UNS DIN EN/DIN W-Nr. BS EN/BS
06Cr19Ni13Mo3
(0Cr19Ni13Mo3) 		S31708 317 SUS 317 STS 317 317 S31700 X5CrNiMo 17-13 1.4449 317S16
3 Approximate Comparison Table
China Japan United States International Organization for Standardization European Standard
ISC JIS UNS ISO Numerical Grade Numerical Grade
S31708 SUS317 S31700 X6CrNiMo19-13-4 4445-317-00-U (1.4445)
A249TP317 Corresponding Standards(Same grade name, different standards)
1 ASTM A249/A249M-2004
A249 TP317 S31700
2 ASTM A249/A249M-2018
A249 TP317 S31700

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