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SUPERFLOW 6 Brazing alloy

PHOS COPPER
AWS A5.8/A5.8M BCuP-4 | ASME SFA5.8 BCuP-4

SUPERFLOW® 6 (6HP) is a Phos-copper brazing alloy formulated to join copper, brass and bronze. This alloy has higher phosphorus than most phos–copper alloy giving it a “quick flow” useful in production setting as well as automated applications. 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

5.8-6.2

Copper

Balance

Phosphorus

7.0-7.5

Total other elements

0.15

Physical Data

Solidus

1190°F (643°C)

Liquidus

1325°F (718°C)

Brazing Range

1275-1450°F (691-788°C)

Color

Bright Light Copper

Specific Gravity

9.03

Density (lb/cu in.)

0.292

Electrical Conductivity (% of IACS)

15.1

Electrical Resistivity (Microohm-cm)

11.38