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A 249 S31254

Description

USA SAE A 249/A 249M (2010) , A 249 S31254 Specialsteel Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 249 S31254
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 249 S31254 Austenite SAE USA Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the A 249 S31254

C Si Mn P S Cr Ni Mo Cu N
≤0.020 ≤0.80 ≤1.00 ≤0.03 ≤0.01 19.5 -20.5 17.5 -18.5 6.00 -6.50 0.50 -1.00 0.18 -0.22

Mechanical Properties of steel grade A 249 S31254

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)
469 (≥) 447 (≥) 44 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade A 249 S31254

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
12 - -     0.22 -  
636 855 - 12.3 433   -  
943 - 13 24.2   222 333

Heat Treatment of steel grade A 249 S31254

Heat treated : 1586°C - 1913°C

Technological Curves of steel grade A 249 S31254

Cross Reference Table (Equivalent Grade) of A 249 S31254

Grade Standard Country Application
S31254
S31254
S31254
S31254
S31254
S31254
S31254
S31254
254SMO(S31254)

Relevant standard of A 249 S31254

A 249/A 249M (2010) Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes A-249-A-249M--(2010)-.pdf

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