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B-Cu91PAg-645/790

Japan JIS B-Cu91PAg-645/790 铜磷钎料 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals B-Cu91PAg-645/790 JIS Z 3264 Japan 铜磷钎料

Chemical composition(mass fraction)(wt.%) of the B-Cu91PAg-645/790

Element Min Max Similar
P 6.8000 7.2000 -
Cu - - -
Ag 1.8000 2.2000 -
Other - 0.2000 -

Mechanical Properties of steel grade B-Cu91PAg-645/790

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)
976 (≥) 782 (≥) 33 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade B-Cu91PAg-645/790

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
31 - -     0.31 -  
324 357 - 43.3 131   -  
747 - 22 44.2   343 343

Heat Treatment of steel grade B-Cu91PAg-645/790

Heat treated : 1738°C - 1672°C

Technological Curves of steel grade B-Cu91PAg-645/790

Cross Reference Table (Equivalent Grade) of B-Cu91PAg-645/790

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