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NB-CuZn-A R (bare)
AWS Specification: RbCuZn-A
JIS Specification: NA
Other Specification: COPPER & BRONZE ALLOYS

For braze welding of copper, steel and cast iron. Melting point about 900 deg C.

CHEMICAL COMPOSITION OF WELD METAL (%):

Cu Sn
Fe
Ni
Si
Zn
57.0-61.0
0.25-1.00 - - -
BALANCE

MECHANICAL PROPERTIES OF WELD METAL:
Tensile Strength: 345 N/mm2 or 50 ksi
Hardness: 70-90 HB
Melting point: 900 deg C, 1650 deg F