KOBATEK 550 HARD-FILLER ELECTRODE 3.20 mm × 350, 5 kg package

Used for hardfacing machine parts made of carbon steel, chromium steel, Cr-Mo steels, and steels with high manganese content.
It is used in hardfacing to protect these parts against wear.
It produces a homogeneous filler metal—free of pores and cracks—in a "Cr-Mn-Mo" tool steel composition that exhibits high resistance to wear, particularly for parts operating under intense friction and pressure. The hardness of the weld metal can be reduced or increased through heat treatment.
It is possible to achieve multi-pass welds of up to three consecutive passes using Kobatek 550. The electrode is easy to strike and restike, and the slag formed on the weld bead is easily removed. No spatter occurs during welding.

Hardness: 54–60 HRC
Annealing: 28–32 HRC (+800°C)
Oil Hardening: 58–62 HRC (+950°C)
Case Hardening: 56–58 HRC (+190°C)

– Deep-drawing dies and punches
– Repair of case-hardened gears
– Tractor plows and excavator buckets
– Die punches
– Excavator bucket blades
– Cold-cutting dies
– Gripper claws
– Bulldozer tracks
– Conveyor grilles
– Chain sprockets (gear sprockets)
– Pressing and bending jaws
– Pump rotors
– Inner walls of concrete mixing machines
– Sheet metal shears and blades
– Wear plates
– Hammer crushers