
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.
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.
Element | C | Mn | Si | Cr |
Percent | 0.85 | 15.5 | 0.55 | 2.5 |
WELD METAL HARDNESS:
As welded (on mild steel-two layers): 200-250 BHN
Work hardens (under impact) to 500 BHN
Size (mm) | 6.3x450 | 5x450 | 4x450 | 3.15x450 |
Current Range (Amps) | 200-270 | 160-200 | 130-160 | 90-120 |
Qty. (Carton/ Pcs.) | 20 | 35 | 50 | 75 |