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China GJB Ag72Cu 贵金属及其合金复合钎料规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Ag72Cu / Ag72Cu
Category Grade Standard Region/Area Standard Content
Metals Ag72Cu GJB 6469 China 贵金属及其合金复合钎料规范

Chemical composition(mass fraction)(wt.%) of the Ag72Cu

Element Min Max Similar
Ag 71.0000 73.0000 -
Cu 27.0000 29.0000 -
Pb - 0.0050 -
Zn - 0.0020 -
Cd - 0.0020 -
Total Others - 0.1500 -

Mechanical Properties of steel grade Ag72Cu

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)
511 (≥) 796 (≥) 33 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade Ag72Cu

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
23 - -     0.43 -  
946 485 - 42.3 412   -  
929 - 22 31.2   321 323

Heat Treatment of steel grade Ag72Cu

Heat treated : 1988°C - 1829°C

Technological Curves of steel grade Ag72Cu

Cross Reference Table (Equivalent Grade) of Ag72Cu

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