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B Ag34CuZnSn730/790

China GB BAg34CuZnSn730/790 贵金属及其合金钎料 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals B Ag34CuZnSn730/790 GB/T 18762 China 贵金属及其合金钎料

Chemical composition(mass fraction)(wt.%) of the B Ag34CuZnSn730/790

Element Min Max Similar
Zn 26.0000 28.0000 -
Total Others - 0.2000 -
Sn 0.7000 1.3000 -
Pb - 0.0500 -
Ni 0.3000 0.6500 -
Cu 20.5000 22.5000 -
Cd - 0.0500 -
Ag - - -

Mechanical Properties of steel grade B Ag34CuZnSn730/790

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)
271 (≥) 574 (≥) 24 21 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade B Ag34CuZnSn730/790

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
24 - -     0.32 -  
894 891 - 14.3 322   -  
798 - 14 41.2   121 244

Heat Treatment of steel grade B Ag34CuZnSn730/790

Heat treated : 1389°C - 1363°C

Technological Curves of steel grade B Ag34CuZnSn730/790

Cross Reference Table (Equivalent Grade) of B Ag34CuZnSn730/790

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