Low Fuming Bronze 15 (Flux-Coated) Brazing Rod HARRIS

Low Fuming Bronze 15 (Flux-Coated), also known as Harris 15 Low Fuming Bronze, is a copper-zinc brazing rod primarily developed for brazing steel and selected cast iron grades, including malleable and grey iron. It can also be used for copper joining, although careful heat control is required due to its higher melting temperature.

This alloy is classified as a braze-welding rod because it shows minimal capillary action during brazing. Joint configurations are therefore generally limited to lap, tee, and butt joints. Butt joints usually require beveled edge preparation to allow proper filler metal placement and full penetration into the joint root.

The integrated flux coating simplifies operation by eliminating the need for separate flux application. During use, base metals are heated to brazing temperature and filler metal is manually deposited along the joint using oxy-fuel brazing techniques.

Key Benefits

Designed for brazing steel and selected cast iron grades
Flux coating removes need for separate flux application
Suitable for braze-welding and repair operations
Supports controlled filler placement for structural joints
Compatible with oxy-fuel brazing processes
Available in multiple supply forms for flexible use

Specifications

Product Name: Low Fuming Bronze 15 (Flux-Coated)
Product Type: Flux-Coated Copper-Zinc Brazing Rod
Application Method: Oxy-fuel brazing and braze-welding
Suitable Materials: Steel, malleable iron, grey cast iron, and copper with heat control
Joint Compatibility: Lap, tee, and butt joints with edge preparation
Solidus Temperature: 1590°F (866°C)
Liquidus Temperature: 1630°F (888°C)
Brazing Range: 1670°F to 1750°F (910°C to 955°C)
Available Forms: Straight rods, preformed rings, and spooled wire for semi-automated applications

Applications

Steel fabrication and repair brazing
Cast iron component repair work
Industrial maintenance and structural repair
Oxy-fuel brazing and braze-welding operations
Workshop and field repair applications

FAQs

What materials can Low Fuming Bronze 15 be used on?
It is mainly used for steel and selected cast iron grades and can be applied to copper with proper heat control.

What advantage does the flux coating provide?
It eliminates the need for separate flux application and simplifies brazing operations.

What joint types are recommended?
Lap, tee, and prepared butt joints provide the best results.

What heating method is used with this alloy?
It is primarily used with oxy-fuel brazing methods.