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.
WELD METAL HARDNESS:
As welded (on mild steel-two layers): 200-250 BHN
Work hardens (under impact) to 500 BHN
|Current Range (Amps)||200-270||160-200||130-160||90-120|
|Qty. (Carton/ Pcs.)||20||35||50||75|