USA UNS S31050
Corresponding Standard ASTM A249/A249M-2004
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Classification Austenitic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N
Minimum Value - - - - - 24 21 2 0.1
Maximum Value 0.03 0.4 2 0.03 0.015 26 23 3 0.16
Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
t≤0.25 inch ≥580 ≥270 ≥25 HRB
≤95
t>0.25 inch ≥540 ≥255 ≥25 ≤95
Approximate Comparison Table Austenitic Stainless Steel
China United States International Organization for Standardization Germany France European Standard
GB ISC ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade
022Cr25Ni22Mo2N S31053 310MoLN S31050 X1CrNiMoN 25-22-2 X1CrNiMoN 25-22-2 1.4466 X1CrNiMoN 25-22-2 X1CrNiMoN 25-22-2 1.4466

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