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Description

Romania STAS/SR OLC15q Alloy structural steel and OLC15q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: OLC15q
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel OLC15q STAS/SR Romania Alloy structural steel
18MnCr11q
21MoMnCr12q
33MoCr11CS
34MoCrNi5CS
40BCr10CS
10Cr10CS
41MoCr11CS
OLC35CS
OLC45CS
OLC55CS

Chemical composition(mass fraction)(wt.%) of the OLC15q

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Al(%)
0.12-0.18 0.17-0.37 0.35-0.65 0.045 0.045 Max 0.30 0.3 0.02

Mechanical Properties of steel grade OLC15q

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)
641 (≥) 593 (≥) 12 43 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade OLC15q

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
11 - -     0.34 -  
391 494 - 24.3 223   -  
197 - 34 34.2   122 344

Heat Treatment of steel grade OLC15q

Heat treated : 1934°C - 1643°C

Technological Curves of steel grade OLC15q

Cross Reference Table (Equivalent Grade) of OLC15q

Grade Standard Country Application
OLC15q STAS/SR Romania Alloy structural steel
OLC15q STAS/SR Romania Alloy structural steel

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