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A 249 S34800

Description

USA SAE A 249/A 249M (2010), A 249 S34800 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 S34800
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 249 S34800 Austenite SAE USA Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the A 249 S34800

C Mn Si P S Cr Ni Ta Co
≤0.08 ≤2.00 ≤1.00 ≤0.045 ≤0.03 17.00 -19.00 9.00 -11.30 ≤0.10 ≤0.20

Mechanical Properties of steel grade A 249 S34800

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)
291 (≥) 939 (≥) 33 41 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade A 249 S34800

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 - -     0.31 -  
156 321 - 44.3 232   -  
126 - 11 13.2   412 143

Heat Treatment of steel grade A 249 S34800

Heat treated : 1896°C - 1584°C

Technological Curves of steel grade A 249 S34800

Cross Reference Table (Equivalent Grade) of A 249 S34800

Relevant standard of A 249 S34800

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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