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Description

Romania STAS/SR OLC22Bq Alloy structural steel and OLC22Bq Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: OLC22Bq
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel OLC22Bq STAS/SR Romania Alloy structural steel
20BMn13q
30MoCrNi20q
34MoCrl Iq
34MoCrNi16q
36BCrMnl Iq
36BMn11q
40BCr10q
40Cr10q
40CrNi12q
42MoCr11q

Chemical composition(mass fraction)(wt.%) of the OLC22Bq

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%) Ti(%)
0.19-0.25 0.17-0.37 0.50-0.80 0.035 0.035 Max 0.30 0.3 0.3 0.01 -0.04

Mechanical Properties of steel grade OLC22Bq

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)
378 (≥) 165 (≥) 14 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade OLC22Bq

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
31 - -     0.24 -  
741 224 - 12.3 343   -  
976 - 23 11.2   224 332

Heat Treatment of steel grade OLC22Bq

Heat treated : 1596°C - 1373°C

Technological Curves of steel grade OLC22Bq

Cross Reference Table (Equivalent Grade) of OLC22Bq

Grade Standard Country Application
OLC22Bq STAS/SR Romania Alloy structural steel

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