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SA-738 Grade B

America ASME SA-738GradeB 中、低温压力容器用热处理的碳锰硅钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-738GradeB / SA-738 Grade B
Category Grade Standard Region/Area Standard Content
Metals SA-738 Grade B ASME SA-738/SA-738M America 中、低温压力容器用热处理的碳锰硅钢板

Chemical composition(mass fraction)(wt.%) of the SA-738 Grade B

Element Min Max Similar

Mechanical Properties of steel grade SA-738 Grade B

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)
693 (≥) 114 (≥) 22 33 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade SA-738 Grade B

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
21 - -     0.41 -  
776 238 - 43.3 121   -  
384 - 42 42.2   433 331

Heat Treatment of steel grade SA-738 Grade B

Heat treated : 1894°C - 1613°C

Technological Curves of steel grade SA-738 Grade B

Cross Reference Table (Equivalent Grade) of SA-738 Grade B

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