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China 宝钢Q/BQB 15Mo3 锅炉用无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 15Mo3 / 15Mo3
Category Grade Standard Region/Area Standard Content
Metals 15Mo3 Q/BQB 201 China 锅炉用无缝钢管

Chemical composition(mass fraction)(wt.%) of the 15Mo3

Element Min Max Similar
Cu - 0.2000 -
Mo 0.2500 0.3500 -
Ni - 0.2500 -
Cr - 0.2500 -
P - 0.0250 -
S - 0.0200 -
Mn 0.4000 0.8000 -
Si 0.1000 0.3500 -
C 0.1200 0.2000 -

Mechanical Properties of steel grade 15Mo3

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)
344 (≥) 951 (≥) 31 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade 15Mo3

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
41 - -     0.34 -  
281 553 - 13.3 342   -  
379 - 42 33.2   441 143

Heat Treatment of steel grade 15Mo3

Heat treated : 1327°C - 1679°C

Technological Curves of steel grade 15Mo3

Cross Reference Table (Equivalent Grade) of 15Mo3

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