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China GB BZn12-29 弹性元件和接插件用铜带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: BZn12-29 / BZn12-29
Category Grade Standard Region/Area Standard Content
Metals BZn12-29 GB/T 26007 China 弹性元件和接插件用铜带

Chemical composition(mass fraction)(wt.%) of the BZn12-29

Element Min Max Similar
Zn - - -
Sn - 0.0300 -
Pb - 0.0300 -
Others total - 0.8000 -
Ni+Co 11.0000 13.5000 -
Mn - 0.5000 -
Fe - 0.3000 -
Cu 57.0000 60.0000 -
Zn - - -
Sn - 0.0300 -
Pb - 0.0300 -
Other - 0.2000 -
Ni 11.0000 13.5000 -
Mn - 0.5000 -
Fe - 0.3000 -
Cu 57.0000 60.0000 -

Mechanical Properties of steel grade BZn12-29

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)
458 (≥) 183 (≥) 22 34 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade BZn12-29

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
13 - -     0.33 -  
358 517 - 23.3 143   -  
578 - 42 42.2   424 344

Heat Treatment of steel grade BZn12-29

Heat treated : 1264°C - 1698°C

Technological Curves of steel grade BZn12-29

Cross Reference Table (Equivalent Grade) of BZn12-29

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