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China 宝钢Q/BQB BX65H 抗氢诱裂纹(HIC)管线用热连轧钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: BX65H / BX65H
Category Grade Standard Region/Area Standard Content
Metals BX65H BZJ 373 China 抗氢诱裂纹(HIC)管线用热连轧钢带

Chemical composition(mass fraction)(wt.%) of the BX65H

Element Min Max Similar
N - 0.0100 -
Cu - 0.3500 -
Ti - 0.0400 -
Nb - 0.0500 -
V - 0.1000 -
M - 0.1000 -
Ni - 0.3000 -
Cr - 0.3000 -
P - 0.0200 -
S - 0.0020 -
Mn - 1.5500 -
Si - 0.3500 -
C - 0.1000 -

Mechanical Properties of steel grade BX65H

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)
785 (≥) 222 (≥) 32 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade BX65H

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
23 - -     0.41 -  
957 523 - 14.3 141   -  
369 - 44 33.2   224 421

Heat Treatment of steel grade BX65H

Heat treated : 1854°C - 1522°C

Technological Curves of steel grade BX65H

Cross Reference Table (Equivalent Grade) of BX65H

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