Copper Brazing Alloys

Copper brazing alloys are known for their excellent corrosion resistance, high electrical conductivity, and high thermal conductivity. They are usually used for brazing carbon and alloy steels, stainless steel, nickel, copper nickel, etc.

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The main materials of Phosphorus-Copper brazing alloy are copper and phosphorus, it has the characteristics of easy flow, low cost, and good welding effect.

Don’t need to use flux when brazing copper and silver objects, the joints have good strength.

Technical Parameters

Chemical Compositions(%) Melt Temperature ℃ Advantages and usage
Cu P Sn The other Melting Point Recommend Welding Temperature
Margin 6.3-6.8 / / 710-790 730-840 Low cost, low melting point, good fluidity, suitable for brazing motor manufacturing and electrical appliances, copper and copper alloy in air conditioning pipe fittings.
Norms sqmm Shape Element Alloy Components Operating Temperature Length (mm) Thickness (mm)
0.1-5.0 Stick Cu P Ag-Cu 760 ℃ Depend on your requirement

Manufactures Description


Copper-phosphorus brazing alloys are used to connect copper to copper in HVAC/R applications, as well as in industries that use electrical conductors.

Copper, silver brazing without flux, which is suitable for air conditioning, refrigerator, evaporator, heat exchanger, water heaters, and other copper alloy brazing.

Brazing, or braze welding, is a metal-joining process. During this process, a filler metal is heated above the melting point, then distributed by capillary action between two or more close-fitting parts. It can braze a joint or fill a hole.

Brazing wire is a common brazing filler metal.

braze terminal

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