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China GB C68350 加工铜及铜合金牌号和化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C68350 / C68350
Category Grade Standard Region/Area Standard Content
Metals C68350 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 C68350

Element Min Max Similar
Zn - - -
Sn - 0.6000 -
Si 0.3000 1.0000 -
Pb - 0.0900 -
P 0.0500 0.4000 -
Others total - 2.0000 -
Ni - 0.2000 -
Fe - 0.1500 -
Cu 59.0000 64.0000 -
Al - 0.3000 -

Mechanical Properties of steel grade C68350

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)
591 (≥) 845 (≥) 43 24 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade C68350

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
24 - -     0.22 -  
146 882 - 12.3 441   -  
134 - 43 31.2   223 314

Heat Treatment of steel grade C68350

Heat treated : 1183°C - 1653°C

Technological Curves of steel grade C68350

Cross Reference Table (Equivalent Grade) of C68350

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