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America ASTM B617 电气接点用银币合金 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B617 / B617
Category Grade Standard Region/Area Standard Content
Metals B617 ASTM B617 America 电气接点用银币合金

Chemical composition(mass fraction)(wt.%) of the B617

Element Min Max Similar
Zn - 0.0600 -
Total Others - 0.0600 -
Pb - 0.0300 -
P - 0.0200 -
Ni - 0.0100 -
Fe - 0.0500 -
Cu 9.0000 10.4000 -
Cd - 0.0500 -
Al - 0.0050 -
Ag 89.6000 91.0000 -

Mechanical Properties of steel grade B617

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)
545 (≥) 743 (≥) 43 34 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade B617

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
12 - -     0.22 -  
427 557 - 14.3 434   -  
299 - 21 43.2   233 343

Heat Treatment of steel grade B617

Heat treated : 1889°C - 1868°C

Technological Curves of steel grade B617

Cross Reference Table (Equivalent Grade) of B617

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