Kontakt 1040 Ag - Fusion coated 40% silver welding rod

Flux-coated silver brazing rods 40% Ag

Classification

ISO 3677: B Ag 40 Cu Zn Sn 650–710
EN 1044: Ag 140

Properties and application

Kontakt 1040 Ag is a cadmium-free silver brazing alloy. The high-purity copper-zinc alloy with 40% silver provides excellent wetting and easy application. It is specially designed for maintenance and repair of food and refrigeration equipment. The rod is flux-coated to simplify the process and ensure strong and corrosion-resistant joints. Working temperature range is 650–710 °C.

This alloy requires controlled cooling to prevent weak and brittle joints.

Base materials

Kontakt 1040 Ag is suitable for general use with copper and nickel alloys, stainless steel and metal tools.

Applications include joining and repair of stainless steel and non-ferrous equipment, tools and fittings in food, pharmaceutical and medical industries, as well as refrigeration, cooling, heating systems, chemical industry and laboratory equipment manufacturing and repair.

Chemical composition (%)

Mechanical properties

Delivery form

Rod diameter 2 mm, length 500 mm

Recommendations

Clean surfaces from oxides, corrosion and grease. Heat the joint to working temperature, braze and allow to cool to room temperature. Remove flux residues with warm water or solvent.