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SA-508 Class 4A

America ASME SA-508Class4A 压力容器用淬火和回火真空处理的碳素钢和合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-508Class4A / SA-508 Class 4A
Category Grade Standard Region/Area Standard Content
Metals SA-508 Class 4A ASME SA-508/SA-508M America 压力容器用淬火和回火真空处理的碳素钢和合金钢锻件

Chemical composition(mass fraction)(wt.%) of the SA-508 Class 4A

Element Min Max Similar

Mechanical Properties of steel grade SA-508 Class 4A

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)
818 (≥) 893 (≥) 12 22 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade SA-508 Class 4A

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 - -     0.13 -  
799 578 - 42.3 213   -  
717 - 13 34.2   213 434

Heat Treatment of steel grade SA-508 Class 4A

Heat treated : 1297°C - 1996°C

Technological Curves of steel grade SA-508 Class 4A

Cross Reference Table (Equivalent Grade) of SA-508 Class 4A

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