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Specifications
AWS A5.7 Class
ERCuSn-A
ASME SFA5.7 ERCuSn-A
QQ-R-571C,MIL-R-1963B
Type-RcuSn-A
Description
Phos-Bronze A filler metal is used for MIG and
TIG welding of tin-bronze base metals such as 509 to
519 series, for brass and for overlay welding of steel.
Phos-Bronze A contains approximately 5% tin
and up to 0.35% phosphorus. The tin content increases
the wear resistance of the weld deposit while the phosphorus
acts as a idizer. Preheating is recommended.
Chemical Composition
(%max.,
unless shown as range or min.)
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