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A508 Grade 4N Class 3

America ASTM A508Grade4NClass3 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.

Category Grade Standard Region/Area Standard Content
Metals A508 Grade 4N Class 3 ASTM A508/A508M 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 A508 Grade 4N Class 3

Element Min Max Similar

Mechanical Properties of steel grade A508 Grade 4N Class 3

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)
746 (≥) 341 (≥) 34 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade A508 Grade 4N Class 3

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
41 - -     0.33 -  
611 291 - 43.3 423   -  
885 - 44 12.2   341 123

Heat Treatment of steel grade A508 Grade 4N Class 3

Heat treated : 1815°C - 1613°C

Technological Curves of steel grade A508 Grade 4N Class 3

Cross Reference Table (Equivalent Grade) of A508 Grade 4N Class 3

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