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China GB AgW70 铜钨及银钨电触头 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AgW70 / AgW70
Category Grade Standard Region/Area Standard Content
Metals AgW70 GB/T 8320 China 铜钨及银钨电触头

Chemical composition(mass fraction)(wt.%) of the AgW70

Element Min Max Similar
Total Others - 0.1000 -
Na+K - 0.1000 -
SiO2 - 0.0500 -
C - 0.1500 -
Cu - 0.1000 -
W - - -
Ag 28.0000 32.0000 -

Mechanical Properties of steel grade AgW70

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)
424 (≥) 636 (≥) 21 13 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade AgW70

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
43 - -     0.24 -  
269 317 - 12.3 131   -  
324 - 31 22.2   114 342

Heat Treatment of steel grade AgW70

Heat treated : 1384°C - 1184°C

Technological Curves of steel grade AgW70

Cross Reference Table (Equivalent Grade) of AgW70

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