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SA-723 Grade 3 Class 3

America ASME SA-723Grade3Class3 压力部件用高强度合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals SA-723 Grade 3 Class 3 ASME SA-723/SA-723M America 压力部件用高强度合金钢锻件

Chemical composition(mass fraction)(wt.%) of the SA-723 Grade 3 Class 3

Element Min Max Similar

Mechanical Properties of steel grade SA-723 Grade 3 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)
711 (≥) 416 (≥) 42 13 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade SA-723 Grade 3 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
44 - -     0.41 -  
156 917 - 23.3 143   -  
642 - 23 41.2   444 431

Heat Treatment of steel grade SA-723 Grade 3 Class 3

Heat treated : 1694°C - 1726°C

Technological Curves of steel grade SA-723 Grade 3 Class 3

Cross Reference Table (Equivalent Grade) of SA-723 Grade 3 Class 3

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