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Hardfacing Electrodes

Super-Mn

Super-Mn is an electrode depositing high manganese steel weld metal. The weld metal possesses excellent toughness and work hardens under impact. The deposit exhibits an austenitic structure and is ideally suited for re-surfacing austenitic manganese steel components like crusher jaws, hammers, etc. for resistance against wear by impact and abrasion.

Precaution

1. Ensure the surface to be built- up is free of all contaminants.

2. Remove by grinding any work hardened zone. A magnet can detach a work hardened zone.

3. Ensure the electrodes are dry. Re-dry the electrodes at 200-250°C for one hour.

4. When welding on austenitic manganese steels, restrict heat input by :

a) Short arc;

b) Stringer bead;

c) Deposits of short lengths and thickness;

d) Intermittent welding;

e) Keeping base material partly immersed in water.

CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSi 

Cr 

Percent
0.8515.50.552.5


MECHANICAL PROPERTIES OF ALL WELD METAL

WELD METAL HARDNESS:

As welded (on mild steel-two layers): 200-250 BHN

Work hardens (under impact) to 500 BHN

CURRENT AND PACKING DATA: AC / DC(+)


Size (mm)
6.3x450
5x450
4x450
3.15x450
Current Range (Amps)
200-270
160-200
130-160
90-120
Qty. (Carton/ Pcs.)
203550
75