MG 746W
A HIGH ALLOY FLUX CORED WIRE
FOR JOINING AND BUILD-UP OF
AUSTENITIC MANGANESE STEELS.
EXCELLENT FOR EXTREME IMPACT
RESISTANCE.
GENERAL CHARACTERISTICS:
GENERAL CHARACTERISTICS:
The MG 746W produces strong, dense deposits with minimum spatter. The deposit is
machinable before work hardening and can be flame cut.
APPLICATIONS:
The MG 746W is used to join or build up 11-14% manganese steel or steels requiring good
impact or compressing strength. It is recommended for rail frogs, switch points, roller
crushers, hammers, shovel tracks, bucket teeth, and as underlay for harder deposits.
TECHNICAL DATA:
Hardness Range as welded............................................................................................. 15-18 Rc
work hardened ....................................................................................... 45-55 Rc
Current ............................................................................................................ DC Reverse Polarity
Diameters (in) 0.45 1/16 5/64 3/32 7/64
(mm) 1.2 1.6 2.0 2.5 2.8
Recommended Range Volts 26-30 26-30 26-30 28-32 28-32
Amps 120-175 175-275 225-275 250-350
250-350
Wire Stick Out 1”-1½” 1½”-2” 2”-2½” 2”-3” 2”-3”
Optimum Range Volts 27 28 28 28 28
Amps 140 240 250 330 330
PROCEDURE:
Remove any unsound or fatigued material with MG 570. Build-up surface area using
stringer or weave beads. Use as high a current that gives puddle control, consistent with
thickness of material and position. Use as low a voltage as possible and keep the travel
angle as straight into the base material as possible. Increased angle may cause porosity.
Avoid overheating on manganese steel base metals.
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