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America ASME BCu-3 Specification for filler metals for brazing and braze welding and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: BCu-3 / BCu-3
Category Grade Standard Region/Area Standard Content
Metals BCu-3 ASME SFA-5.8/SFA-5.8M America Specification for filler metals for brazing and braze welding

Chemical composition(mass fraction)(wt.%) of the BCu-3

Element Min Max Similar
Cu 99.9500 - -
Others total - 0.0500 -

Mechanical Properties of steel grade BCu-3

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)
112 (≥) 672 (≥) 21 11 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade BCu-3

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
32 - -     0.42 -  
928 945 - 32.3 221   -  
269 - 42 31.2   411 442

Heat Treatment of steel grade BCu-3

Heat treated : 1772°C - 1798°C

Technological Curves of steel grade BCu-3

Cross Reference Table (Equivalent Grade) of BCu-3

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