MG 745W
A high alloy self-shielding flux cored wire
for joining and build-up of austenitic
manganese steels. Excellent for extreme
impact resistance
GENERAL CHARACTERISTICS:
This high chromium, high manganese alloy is ideal for the joining and build-up of 11-14% maganese steel and
carbon steel. The high alloy deposits are machinable before work hardening.
APPLICATIONS:
For joining manganese steels to other alloy steels, especially designed for high impact applications such as rail
frogs, switch points, roller crushers and hammers. Excellent for use as a base for harder overlays.
TECHNICAL DATA:
Typical Hardness Range
As Deposited: 16-19 HRC
Work Hardened: 45-50 HRC
Typical Values 1 pass
As Deposited: 19 HRC
Work Hardened: 48 HRC
Typical Values 2 pass
As Deposited: 21 HRC
Work Hardened: 50 HRC
Polarity DC reverse (electrode +)
Recommended Range
Diameter Amperage Volts Wire Stick Out
0.045” (1.2mm) 100-190 26-30 1”-1 1/2”
1/16” (1.6mm) 175-275 26-30 1 1/2”-2
7/64” (2.8mm) 275-375 28-32 2”-3”
PROCEDURE:
Remove any unsound or fatigued material using MG 570. Build-up surface area using stringer or weave beads.
Use as low a voltage as possible and keep the travel angle as straight into the base material as possible.
Increased lead angle may cause porosity. Avoid overheating manganese steel.
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