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Description

Romania STAS/SR OLC55XS Structural steel and OLC55XS Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: OLC55XS
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel OLC55XS STAS/SR Romania Structural steel
OLC45S
OLC45X
OLC45XS
OLC50
OLC50S
OLC50X
01X50 XS
01X55
OLC55S
OIX55X

Chemical composition(mass fraction)(wt.%) of the OLC55XS

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.52-0.60 0.17-0.37 0.60-0.90 0.035 0.020-0.040 0.30 0.30 0.30

Mechanical Properties of steel grade OLC55XS

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)
645 (≥) 271 (≥) 34 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade OLC55XS

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 - -     0.11 -  
673 775 - 33.3 321   -  
184 - 32 34.2   314 233

Heat Treatment of steel grade OLC55XS

Heat treated : 1193°C - 1853°C

Technological Curves of steel grade OLC55XS

Cross Reference Table (Equivalent Grade) of OLC55XS

Grade Standard Country Application
OLC55XS STAS/SR Romania Structural steel

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