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America ASTM B628 电接触用银铜共晶合金 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B628 / B628
Category Grade Standard Region/Area Standard Content
Metals B628 ASTM B628 America 电接触用银铜共晶合金

Chemical composition(mass fraction)(wt.%) of the B628

Element Min Max Similar
Zn - 0.0600 -
Total Others - 0.0600 -
Tot. other - 0.1500 -
Pb - 0.0300 -
P - 0.0300 -
Ni - 0.0100 -
Fe - 0.0500 -
Cu - - -
Cd - 0.0500 -
Al - 0.0050 -
Ag 71.0000 73.0000 -

Mechanical Properties of steel grade B628

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)
455 (≥) 523 (≥) 22 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade B628

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 - -     0.11 -  
577 334 - 41.3 141   -  
233 - 43 21.2   312 213

Heat Treatment of steel grade B628

Heat treated : 1864°C - 1396°C

Technological Curves of steel grade B628

Cross Reference Table (Equivalent Grade) of B628

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