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B888 C42500

America ASTM B888C42500 制造电气连接器或弹簧触点时采用的铜合金带材技术规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B888C42500 / B888 C42500
Category Grade Standard Region/Area Standard Content
Metals B888 C42500 ASTM B888 America 制造电气连接器或弹簧触点时采用的铜合金带材技术规范

Chemical composition(mass fraction)(wt.%) of the B888 C42500

Element Min Max Similar

Mechanical Properties of steel grade B888 C42500

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)
679 (≥) 759 (≥) 43 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade B888 C42500

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
32 - -     0.34 -  
613 722 - 14.3 123   -  
822 - 24 12.2   422 443

Heat Treatment of steel grade B888 C42500

Heat treated : 1483°C - 1821°C

Technological Curves of steel grade B888 C42500

Cross Reference Table (Equivalent Grade) of B888 C42500

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