Kontakt 1000 - Fused copper welding rod

Flux-coated copper brazing alloy

Classification

ISO 3677: B Cu 60 Zn Si 870–890
EN 1044: Cu 304

Properties and application

Copper-zinc brazing alloy with small additions of silicon, nickel, manganese and tin. The rod is coated with flux, which facilitates the brazing process and ensures a strong and corrosion-resistant joint.
Working temperature: 870–890 °C

Base materials

Suitable for:

steel
cast iron
copper alloys
bronze

It is possible to join both similar and dissimilar materials.

Application examples

Brazing carbide plates to tool holders
Repair and installation of water supply and heating pipelines

Chemical composition (%)

Cu 59.7 | Mn 0.25 | Si 0.13 | Ni <0.2 | Sn <0.2 | Zn balance

Mechanical properties

Density: 8400 kg/m³
Elongation: 35%
Tensile strength: 45 N/mm²
Colour: yellow

Delivery form

Rods with flux coating: Ø 1.5–5 mm, length 500 mm
Rods without coating: on request
Wire: on request

Recommendations

Clean surfaces from oxides and grease. Heat to working temperature, perform brazing and allow to cool. Then remove flux residues with Cleaner Spray.