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SA-437 Grade B4C

America ASME SA-437GradeB4C 高温用特殊热处理合金钢透平用螺栓连接材料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-437GradeB4C / SA-437 Grade B4C
Category Grade Standard Region/Area Standard Content
Metals SA-437 Grade B4C ASME SA-437/SA-437M America 高温用特殊热处理合金钢透平用螺栓连接材料

Chemical composition(mass fraction)(wt.%) of the SA-437 Grade B4C

Element Min Max Similar

Mechanical Properties of steel grade SA-437 Grade B4C

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)
888 (≥) 363 (≥) 41 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade SA-437 Grade B4C

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 - -     0.14 -  
913 348 - 22.3 211   -  
768 - 42 14.2   312 332

Heat Treatment of steel grade SA-437 Grade B4C

Heat treated : 1572°C - 1398°C

Technological Curves of steel grade SA-437 Grade B4C

Cross Reference Table (Equivalent Grade) of SA-437 Grade B4C

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