Copper Phos Alloys
CuP Alloys offer a range of self fluxing alloys for brazing copper in air. Typical uses include refrigeration plant and equipment, water heaters, calorifiers, electric elements, motors and transformers. The final choice depends on the brazing characteristics required, or service conditions and requirements of the brazed joint.
| || increasing silver content: |
increases joint ductility
lowers the melting range of the alloy
decreases the semi - molten temperature range
improves the joint ductility
increases the cost of the alloy
increasing phosphorus content:
increases fluidity of the molten alloy
reduces joint ductility
decreases the semi-molten temperature range
Rod 1.5mm - 5.0mm round or square
Length 250 - 1000mm
Wire, Powder, Paste Preforms
These materials, used with a flux, can also be used to braze copper alloys.
Care should be taken to use, wherever possible, oxygen free copper to avoid the dangers of ''hydrogen embrittlement''. A reducing flame will reduce any dissolved oxide, create steam to create internal joint porosity and embrittlement of the copper.
They should not be used to braze copper to either nickel or ferrous alloys. Very brittle intermetallic compounds are formed.
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