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C-75

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OLT45R J-55
#C-75

Description

Romania STAS/SR C-75 Structural steel and C-75 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: C-75
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel C-75 STAS/SR Romania Structural steel
E36
E40
1b
2a
3a
OLT35
OLT65
10Ni35
OLT35R
OLT45R

Chemical composition(mass fraction)(wt.%) of the C-75

C(％) Si(％) Mn(％) P(％) S(％) Mo(％)
0.40-0.46 0.15-0.35 1.50-1.70 0.040 0.060 0.16

Mechanical Properties of steel grade C-75

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)
562 (≥) 374 (≥) 34 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade C-75

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 - -     0.31 -  
818 557 - 14.3 334   -  
857 - 34 23.2   242 234

Heat Treatment of steel grade C-75

Heat treated : 1774°C - 1615°C

Technological Curves of steel grade C-75

Cross Reference Table (Equivalent Grade) of C-75

Grade Standard Country Application
C-75 STAS/SR Romania Structural steel
OLT45R J-55
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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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