Harris® low cost alloy for many copper to copper applications where moderate fit-up can be maintained and brazing temperature is Not critical.
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Harris® Low cost alloy suitable for most copper-to-copper or brass joints where good fit-up exists and assemblies are not subject to excessive vibration nor movement
This alloy flows quickly at brazing temperature so requires close joint tolerance, less than 0005 in is a frequent choice for copper brazing
A suitable choice for brazing brass, operators should take care to avoid over heating the brass and use Harris® Stay-Silv® white brazing flux in this application
Not recommended for brazing steel or other ferrous base metals, the phosphorus content will form a low ductility intermetallic with the base metal
Corrosion resistance is generally similar to copper base metal, but phosphorus containing alloys, including Harris®, should not be used if the braze is exposed to sulfur or sulfur compounds in service
Specifications
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Type: #28
Applicable Materials: Copper to Copper and Copper to brass
Brazing Range: 1345 to 1500 deg F
Chemical Composition: 7.1% Phosphorus, Copper Balance and 0.15% Other
Container Type: Stick Tube
Diameter: 1/8 in
Length: 28 in
Warranty
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1 Year
Standards & Approvals
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AWS A5.8 BCuP-2
ASME Section IIC SFA 5.8 BCuP-2
ISO 17672 CuP 181
PROP65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov