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Hardfacing Electrodes

SUPER-Mn/Ni

AWS: SFA 5.13 EFeMn-A

Super-Mn/Ni is basic coated electrode depositing high manganese weld metal for resurfacing austenitic manganese steels. Austenitic manganese, work hardening weld metal having excellent wear resistance under impact and abrasion. The weld metal possesses exceptional toughness and work hardens under impact. It is ideally suited for resurfacing to obtain wear resistance against impact, abrasion and a combination of both. The typical applications include rock crushing jaws, manganese steel castings, rail frogs & switches, crusher jaws & hammers, rail crossovers, etc.

Precaution

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

2. Remove work-hardened zone by grinding.

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

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

a. Short arc

b. Stringer beads

c. Deposits of short length and thickness

d. Intermittent welding

e. Keeping base material partly immersed in water.

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSi 
PS

Ni

Percent
0.9014.00.650.0250.025
3.5


HARDNESS:

(Three layers deposit on mild steel)

200 250 BHN (As welded)

Work hardens up to 550 BHN (Under impact)

CURRENT & 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