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A 249 S31254

Favorite Datasheet
A 240 S31254 A 269 S31254
#254SMO #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 Mn Si P S Cr Ni Mo Cu N
≤0.02 ≤1.00 ≤0.80 ≤0.03 ≤0.01 19.50 -20.50 17.50 -18.50 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)
593 (≥) 521 (≥) 12 41 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

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
34 - -     0.34 -  
967 832 - 22.3 234   -  
283 - 33 32.2   432 124

Heat Treatment of steel grade A 249 S31254

Heat treated : 1847°C - 1653°C

Technological Curves of steel grade A 249 S31254

Cross Reference Table (Equivalent Grade) of A 249 S31254

Grade Standard Country Application
254SMO
254SMO(S31254)
S31254
S31254
S31254
S31254
S31254
S31254
S31254
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
A 240 S31254 A 269 S31254
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Jiangyou Longhai Special Steel Co.,Ltd.

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