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SA 249 S30940

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S30940 SA-240 S30940
#Type309SCb #S30940

Description

USA AMS SA-249/SA-249M, SA 249 S30940 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 S30940
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA 249 S30940 Austenite AMS USA Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the SA 249 S30940

C Mn Si P S Cr Ni Mo
≤0.08 ≤2.00 ≤1.00 ≤0.045 ≤0.03 22.00 -24.00 12.00 -15.00 ≤ ≥

Mechanical Properties of steel grade SA 249 S30940

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)
671 (≥) 792 (≥) 12 11 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade SA 249 S30940

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 - -     0.22 -  
912 718 - 33.3 414   -  
223 - 42 41.2   233 133

Heat Treatment of steel grade SA 249 S30940

Heat treated : 1266°C - 1965°C

Technological Curves of steel grade SA 249 S30940

Cross Reference Table (Equivalent Grade) of SA 249 S30940

Grade Standard Country Application
S30940
S30940
S30940
S30940
S30940
S30940
S30940

Relevant standard of SA 249 S30940

SA-249/SA-249M Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes SA-249-SA-249M.pdf
S30940 SA-240 S30940
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