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SA-249 S31040

Description

USA AMS SA-249/SA-249M, SA-249 S31040 Specialsteel Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-249 S31040
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-249 S31040 Austenite AMS USA Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the SA-249 S31040

C Mn Si P S Cr Ni Mo Nb+Ta
≤0.08 ≤2.00 ≤1.50 ≤0.045 ≤0.03 24.00 -26.00 19.00 -22.00 ≤ ≥ 10×C% -1.10

Mechanical Properties of steel grade SA-249 S31040

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
657 (≥) 738 (≥) 11 13 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade SA-249 S31040

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
41 - -     0.42 -  
842 146 - 34.3 443   -  
688 - 41 23.2   131 412

Heat Treatment of steel grade SA-249 S31040

Heat treated : 1624°C - 1287°C

Technological Curves of steel grade SA-249 S31040

Cross Reference Table (Equivalent Grade) of SA-249 S31040

Grade Standard Country Application
S31040
S31040
S31040
S31040
S31040
S31040

Relevant standard of SA-249 S31040

SA-249/SA-249M Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes SA-249-SA-249M.pdf

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