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A 249 S31725

Description

USA SAE A 249/A 249M (2010, A 249 S31725 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 S31725
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 249 S31725 Austenite SAE USA Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the A 249 S31725

C Mn Si P S Cr Ni Mo Cu N
≤0.03 ≤2.00 ≤0.75 ≤0.045 ≤0.03 18.00 -20.00 13.50 -17.50 4.00 -5.00 ≤0.75 ≤0.10

Mechanical Properties of steel grade A 249 S31725

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)
919 (≥) 714 (≥) 24 32 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade A 249 S31725

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
22 - -     0.24 -  
614 972 - 44.3 423   -  
279 - 41 43.2   422 311

Heat Treatment of steel grade A 249 S31725

Heat treated : 1372°C - 1993°C

Technological Curves of steel grade A 249 S31725

Cross Reference Table (Equivalent Grade) of A 249 S31725

Grade Standard Country Application
S31725
S31725
S31725
S31725
S31725
S31725
S31725

Relevant standard of A 249 S31725

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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