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A193 B8MLN Class 1

America ASTM A193B8MLNClass1 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 B8MLN Class 1 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 B8MLN Class 1

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 10.0000 13.0000 -
N 0.1000 0.1600 -
Mo 2.0000 3.0000 -
Mn - 2.0000 -
Cr 16.0000 18.0000 -
C - 0.0300 -

Mechanical Properties of steel grade A193 B8MLN Class 1

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)
826 (≥) 146 (≥) 33 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade A193 B8MLN Class 1

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
24 - -     0.14 -  
835 885 - 32.3 143   -  
577 - 43 32.2   231 131

Heat Treatment of steel grade A193 B8MLN Class 1

Heat treated : 1681°C - 1398°C

Technological Curves of steel grade A193 B8MLN Class 1

Cross Reference Table (Equivalent Grade) of A193 B8MLN Class 1

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