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China GB T38400 加工铜及铜合金牌号和化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: T38400 / T38400
Category Grade Standard Region/Area Standard Content
Metals T38400 GB/T 5231 China 加工铜及铜合金牌号和化学成分

Chemical composition(mass fraction)(wt.%) of the T38400

Element Min Max Similar
Zn - - -
Sn - 0.5000 -
Pb 3.5000 4.5000 -
Others total - 1.2000 -
Fe - 0.5000 -
Cu 56.0000 58.0000 -

Mechanical Properties of steel grade T38400

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)
822 (≥) 454 (≥) 34 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade T38400

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
22 - -     0.11 -  
266 779 - 43.3 211   -  
418 - 11 32.2   232 314

Heat Treatment of steel grade T38400

Heat treated : 1466°C - 1482°C

Technological Curves of steel grade T38400

Cross Reference Table (Equivalent Grade) of T38400

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