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SA-266 Class 4

America ASME SA-266Class4 压力容器部件用碳钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-266Class4 / SA-266 Class 4
Category Grade Standard Region/Area Standard Content
Metals SA-266 Class 4 ASME SA-266/SA-266M America 压力容器部件用碳钢锻件

Chemical composition(mass fraction)(wt.%) of the SA-266 Class 4

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0400 -
P - 0.0350 -
Ni - 0.2500 -
Mo - 0.0800 -
Mn 0.8000 1.3500 -
Cr - 0.2000 -
CEV - 0.5000 -
C - 0.3000 -

Mechanical Properties of steel grade SA-266 Class 4

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)
321 (≥) 947 (≥) 12 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade SA-266 Class 4

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
43 - -     0.23 -  
962 864 - 22.3 121   -  
338 - 12 32.2   344 423

Heat Treatment of steel grade SA-266 Class 4

Heat treated : 1121°C - 1991°C

Technological Curves of steel grade SA-266 Class 4

Cross Reference Table (Equivalent Grade) of SA-266 Class 4

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