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SA-789 S39274

America ASME SA-789S39274 Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-789S39274 / SA-789 S39274
Category Grade Standard Region/Area Standard Content
Metals SA-789 S39274 ASME SA-789/SA-789M America Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service

Chemical composition(mass fraction)(wt.%) of the SA-789 S39274

Element Min Max Similar
W 0.8000 1.2100 -
Si - 0.8000 -
S - 0.0020 -
P - 0.0250 -
Ni 6.5000 8.0000 -
N 0.2300 0.3300 -
Mo 3.0000 4.0000 -
Mn - 0.8000 -
Cu 1.2000 2.0000 -
Cr 24.0000 26.0000 -
C - 0.0250 -

Mechanical Properties of steel grade SA-789 S39274

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)
947 (≥) 983 (≥) 32 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade SA-789 S39274

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
32 - -     0.31 -  
924 897 - 31.3 141   -  
899 - 42 43.2   112 222

Heat Treatment of steel grade SA-789 S39274

Heat treated : 1713°C - 1213°C

Technological Curves of steel grade SA-789 S39274

Cross Reference Table (Equivalent Grade) of SA-789 S39274

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