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SA-249 S30453

Description

USA AMS SA-249/SA-249M, SA-249 S30453 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 S30453
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-249 S30453 Austenite AMS USA Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the SA-249 S30453

C Si Mn P S Cr Ni N
≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.03 18.0 -20.0 8.00 -12.0 0.10 -0.16

Mechanical Properties of steel grade SA-249 S30453

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)
744 (≥) 864 (≥) 21 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade SA-249 S30453

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
42 - -     0.11 -  
863 379 - 22.3 314   -  
378 - 24 33.2   214 124

Heat Treatment of steel grade SA-249 S30453

Heat treated : 1921°C - 1493°C

Technological Curves of steel grade SA-249 S30453

Cross Reference Table (Equivalent Grade) of SA-249 S30453

Relevant standard of SA-249 S30453

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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