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Description

China GBT 08F China structural steel and alloy steel and 08F Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 08F
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 08F GBT China China structural steel and alloy steel
Q235GJ-E
Q345GJ-C
Q345GJ-D
Q345GJ-E
Q235GJZ-C
Q235GJZ-D
Q235GJZ-E
Q345GJZ-C
Q345GJZ-D
Q345GJZ-E

Chemical composition(mass fraction)(wt.%) of the 08F

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.05-0.11 Max 0.03 0.25-0.50 0.035 0.035 0.1 0.3 0.25

Mechanical Properties of steel grade 08F

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)
526 (≥) 411 (≥) 23 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade 08F

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
14 - -     0.34 -  
192 338 - 11.3 311   -  
989 - 12 42.2   233 142

Heat Treatment of steel grade 08F

Heat treated : 1671°C - 1224°C

Technological Curves of steel grade 08F

Cross Reference Table (Equivalent Grade) of 08F

Grade Standard Country Application
08F GBT China China structural steel and alloy steel

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