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NB-CuZn-B FC (flux coated)
AWS Specification: RbCuZn-B
JIS Specification: NA
Other Specification: COPPER & BRONZE ALLOYS

For braze welding of copper, steel and cast iron. Melting point about 880 deg C.

CHEMICAL COMPOSITION OF WELD METAL (%):

Cu Sn
Fe
Ni Si Zn
56.0-60.0
0.80-1.10 0.25-1.20
0.20-0.80 0.04-0.15 BALANCE

MECHANICAL PROPERTIES OF WELD METAL:
Tensile Strength: 386 N/mm2 or 56 ksi
Hardness: 80-110 HB
Melting point: 880 deg C, 1620 deg F