Details
Phosphorus-Copper Brazing Alloy has features of good-flowing ,low price and good workmanship, it needn't use flux .it appropriate for touch- welding ,gas flame welding ,high-frequency welding and welding inside stove ,welding joint has better intensity and electric conductivity .it should use flux when weld copper alloys.
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Brazing Alloy
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Composition(%)
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Melting Range(oC)
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Principal areas of application
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Cu
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Sn
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P
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Impurities Total
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Solidus
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Liquidus
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CuP-1
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balance
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-
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7.5-8.5
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< 0.15%
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710
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780
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Use for copper and copper alloy parts , refrigeration compressor , not suitable for brazing attacking shocking bend parts
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CuP-2
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-
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6.5-7.5
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710
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800
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Use for copper and copper alloy parts , suitable for air conditioning , refrigerator , evaporator , heat exchanger and water heater etc
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|
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CuP-3
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-
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6.1-6.8
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710
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820
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Can make into various brazing ring , wires , brazing copper and copper alloy parts , brazing ample clearance tie-in
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Cup-3Sn
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balance
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6.5-7.5
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6.5-7.5
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640
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680
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For various copper and copper alloy
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Cup-5Sn
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4.8-5.8
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7.0-8.0
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620
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670
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Use for copper of brass parts of water heater , radiant heating , radiant heating etc
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Cup-6Sn
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5-6
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5-6
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650
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800
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Use for copper or brass parts of water heater , radiant heating , radiant heating etc. brazing ample clearance tie – in
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Cup-7Sn
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6.5-7.5
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6.5-7.5
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640
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680
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Use for copper and copper parts of water heater , water fountain , fuel gas ware , radiant heating and cleaners , polishes etc
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