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Specifications
AWS A5.27 Class
RBCuZn-A
AWS A5.8 Class RBCuZn-A
ASME
SFA5.27 Class RBCuZn-A
ASME SFA5.8 Class RBCuZn-A
QQ-R-571C
MIL-R-19631B Type RcuZn-A
MIL-B-7883
QQ-B-650
Description
AWS A5.27 Class RBCuZn-A is a
1% tin filler metal used for brazing or oxyacetylene
welding of steel, cast iron, malleable iron, copper-bronze
and nickel alloys. The addition of tin improves strength
and corrosion resistance in the weld deposit. A borax-boric
acid flux is generally required. Joint clearances should
be 0.002 inch to 0.005 inch wide. Preheating may be
desirable for some applications. A neutral or slightly
oxidizing flames should be used.
Chemical Composition
(%max., unless shown as range or min.)
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