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China GB T69230 加工铜及铜合金牌号和化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: T69230 / T69230
Category Grade Standard Region/Area Standard Content
Metals T69230 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 T69230

Element Min Max Similar
Zn - - -
Si 0.5000 1.5000 -
Others total - 0.7000 -
Ni 2.5000 4.0000 -
Fe 0.3000 1.3000 -
Cu 59.0000 62.0000 -
Co 0.5000 1.0000 -
Al 3.5000 4.5000 -

Mechanical Properties of steel grade T69230

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)
589 (≥) 743 (≥) 42 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade T69230

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
34 - -     0.23 -  
877 268 - 33.3 124   -  
128 - 11 34.2   242 422

Heat Treatment of steel grade T69230

Heat treated : 1254°C - 1758°C

Technological Curves of steel grade T69230

Cross Reference Table (Equivalent Grade) of T69230

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