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SUPERFLOW 2 Brazing alloy

PHOS COPPER
AWS A5.8/A5.8M BCuP-6 | ASME SFA5.8 BCuP-6

SUPERFLOW® 2 is a Phos-copper brazing alloy formulated to join copper, brass and bronze. This alloy is commonly used where cost may be a factor without sacrificing good flowing and leak free characteristics. Superflow brazing flux is needed when working on brazeable grades brass or bronze. Phos-Copper alloys are self- fluxing on copper but should not be used, on copper alloys containing more than 10% nickel, steels, and ferrous metals or in any sulfurous atmospheres. Aluminum bronze requires the use of Aluminum bronze brazing flux.

CHEMICAL COMPOSITION, WEIGHT PERCENT

Silver

1.8-2.2

Copper

Balance

Phosphorus

6.8-7.2

Total other elements

0.15

Physical Data

Solidus

1190°F (643°C)

Liquidus

1450°F (788°C)

Brazing Range

1350-1500°F (732-816°C)

Color

Bright Light Copper

Specific Gravity

8.03

Density (lb/cu in.)

0.290

Electrical Conductivity (% of IACS)

5.5

Electrical Resistivity (Microohm-cm)

31.5