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OLC70A

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OIX65A OLC75A
#OLC70A

Description

Romania STAS/SR OLC70A Alloy structural steel and OLC70A Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: OLC70A
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel OLC70A STAS/SR Romania Alloy structural steel
22MoCrNi0S
40Sil7A
51Sil7A
SIVCr11A
56Sil7A
60CrMnSi12A
60Si15A
65WSil8A
OLC55A
OIX65A

Chemical composition(mass fraction)(wt.%) of the OLC70A

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.65-0.75 0.17-0.37 0.35-0.80 0.04 0.04 0.3 0.3 0.25

Mechanical Properties of steel grade OLC70A

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)
786 (≥) 648 (≥) 33 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade OLC70A

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 - -     0.21 -  
268 956 - 41.3 441   -  
499 - 44 31.2   144 414

Heat Treatment of steel grade OLC70A

Heat treated : 1376°C - 1983°C

Technological Curves of steel grade OLC70A

Cross Reference Table (Equivalent Grade) of OLC70A

Grade Standard Country Application
OLC70A STAS/SR Romania Alloy structural steel
OIX65A OLC75A
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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