SIFCUPRON No 17-5Ag x 1.5mm x 1Kg
EN 1044: BS: 1845 AWS CP104,
CP4 A5.8 BCuP-3
DESCRIPTION A copper/phosphorus alloy with 5% silver, exhibiting ductility and capillary flow characteristics between 17-2 AG and 17- 15 AG. It provides the best combination of flow and ductility of all the silver-copper-phosphorous type brazing filler metals.
WELDING POSITIONS Suitable for use in heating and ventilation industries, shipbuilding, refrigeration, and offshore and electrical industries.
TYPICAL WELD METAL COMPOSITION
Ag 5 % P 6 % Cu Bal
Melting Point 645-730°C
TYPICAL MECHANICAL PROPERTIES
Ult Tensile Strength 600 N/mm²
Hardness 190
MATERIAL TO BE WELDED
It is recommended for use in the production of electrical motors, dynamos and the joining of copper pipes in ship building and offshore industries. It is extensively used in refrigeration, air conditioning and heat-exchanger components for fluxfree brazing of copper pipes and tubes. It is also used for joining copper in electrical engineering applications. Not suitable for brazing iron-containing materials like carbon, stainless steel, or materials with a nickel content as the phosphorus within the filler will form brittle compounds at the joint. For brazing copper to copper no flux is needed.
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