MG 740
Compression resistant alloy for build-up
and hardfacing cushion layers
GENERAL CHARACTERISTICS:
For deposits of intermediate hardness and toughness. MG 740 deposits quality welds in all positions with
excellent efficiency and recovery rates. Its high compressive strength makes MG 740 a good foundation for
hard- and wear-facing applications as well as a rebuild alloy. Deposits can be machined, forged and flame cut.
APPLICATIONS:
Build up and padding of carbon and low alloy steels. Deposits can be built up to heavy thickness without
danger of cracking. Can be used to rebuild tractor pads and rollers, wobblers, roll ends, rail and rail ends.
Hardfacing of structural steel or cast steel machine components subjected to wear, such as slideways, truck
wheels, wheel crowns, guides, couplings, brake drums, and rope winches.
TECHNICAL DATA:
Hardness 33-41 HRC
Polarity AC or DC (+/-)
Diameter Amperage
1/8” (3.2mm) 90-120
5/32” (4.0mm) 130-160
3/16” (5.0mm) 160-190
PROCEDURE:
Remove fatigued metal with MG 560 or MG 570 and clean remaining oxides and debris. Using AC or DC to
deposit stringer or weave beads as needed. Deposits can be forged at medium heat. Use straight polarity
(DCEN) for highest build-ups.
品牌:美國Messer