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SA-249 TP309H

Description

USA AMS SA-249/SA-249M, SA-249 TP309H 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 TP309H
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-249 TP309H Austenite AMS USA Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the SA-249 TP309H

C Si Mn P S Cr Ni
≤0.08 ≤0.75 ≤2.00 ≤0.045 ≤0.030 22.0 -24.0 12.0 -15.0

Mechanical Properties of steel grade SA-249 TP309H

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)
755 (≥) 667 (≥) 41 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade SA-249 TP309H

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 - -     0.32 -  
924 892 - 11.3 412   -  
881 - 12 34.2   431 123

Heat Treatment of steel grade SA-249 TP309H

Heat treated : 1318°C - 1321°C

Technological Curves of steel grade SA-249 TP309H

Cross Reference Table (Equivalent Grade) of SA-249 TP309H

Relevant standard of SA-249 TP309H

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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