KOBATEK 725 COPPER-BRONZE WELDING ELECTRODE 4.00 mm × 350, 5 kg package

It is used in the joining of parts made of copper, bronze, and brass with parts made of steel, galvanized steel, cast iron,
nickel, and nickel alloys, as well as in the
welding repair and bronze plating of these materials. It produces non-porous weld beads with particularly high resistance to metal-to-metal friction.
It provides high resistance to corrosion caused by industrial conditions such as acetone, pure ammonia, seawater, and similar environments. It provides high resistance against types of corrosion caused by acetone, pure ammonia, seawater, and similar industrial conditions.
Unlike conventional bronze electrodes, its coating does not scorch or flake off even at high current levels.
It enables work with homogeneous, high-quality welds where slag is easy to remove. It enables welding with homogeneous, high-quality welds
from which slag is easily removed.

Tensile Strength: 30–36 kg/mm²
Elongation (L=5d): 15–25%
Hardness: 100–140 HB

Valve and gate seats
– Slides and similar sliding surfaces
– Pump rotors
– Propeller shaft sleeves and bushings
– Surface coating processes for the teeth of worm gears and transmission gears
– Propellers operating in seawater
– Pistons
– Turbine wheels and blades
– Shafts and guides
– Gears
– Helical gears
– Elimination of casting defects and porosity in newly cast bronze parts

– Localized repair processes on electrode holder bars
– Bronze parts and phosphor-bronze alloys operating in corrosive environments caused specifically by acetone, pure ammonia, seawater, acids, and other industrial conditions