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Description

Romania STAS/SR OLC55CS Alloy structural steel and OLC55CS Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: OLC55CS
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel OLC55CS STAS/SR Romania Alloy structural steel
17MoCrNi14q
18MnCr11q
21MoMnCr12q
33MoCr11CS
34MoCrNi5CS
40BCr10CS
10Cr10CS
41MoCr11CS
OLC35CS
OLC45CS

Chemical composition(mass fraction)(wt.%) of the OLC55CS

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%) Ti(%)
0.52-0.57 0.17- 0.37 0.50-0.80 0.035 0.035 Max 0.20 0.3 0.30 0.02

Mechanical Properties of steel grade OLC55CS

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)
947 (≥) 728 (≥) 22 13 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical Properties of steel grade OLC55CS

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
12 - -     0.34 -  
658 969 - 11.3 114   -  
574 - 32 33.2   322 124

Heat Treatment of steel grade OLC55CS

Heat treated : 1188°C - 1842°C

Technological Curves of steel grade OLC55CS

Cross Reference Table (Equivalent Grade) of OLC55CS

Grade Standard Country Application
OLC55CS STAS/SR Romania Alloy structural steel

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