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A193 B8MNA Class 1B

America ASTM A193B8MNAClass1B 高温或高压设备和其他特殊用途用合金钢和不锈钢螺栓材料 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals A193 B8MNA Class 1B ASTM A193/A193M America 高温或高压设备和其他特殊用途用合金钢和不锈钢螺栓材料

Chemical composition(mass fraction)(wt.%) of the A193 B8MNA Class 1B

Element Min Max Similar

Mechanical Properties of steel grade A193 B8MNA Class 1B

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)
468 (≥) 319 (≥) 22 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade A193 B8MNA Class 1B

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 - -     0.12 -  
973 595 - 41.3 221   -  
939 - 32 33.2   321 233

Heat Treatment of steel grade A193 B8MNA Class 1B

Heat treated : 1347°C - 1672°C

Technological Curves of steel grade A193 B8MNA Class 1B

Cross Reference Table (Equivalent Grade) of A193 B8MNA Class 1B

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