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Romania STAS OPM Supporting sections pour mine galleries and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: OPM / OPM
Category Grade Standard Region/Area Standard Content
Metals OPM STAS 9531 Romania Supporting sections pour mine galleries

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

Element Min Max Similar

Mechanical Properties of steel grade OPM

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)
599 (≥) 699 (≥) 44 32 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade OPM

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
21 - -     0.23 -  
947 877 - 11.3 413   -  
952 - 14 14.2   343 233

Heat Treatment of steel grade OPM

Heat treated : 1376°C - 1452°C

Technological Curves of steel grade OPM

Cross Reference Table (Equivalent Grade) of OPM

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