Lastifil 2400G is a flux cored wire that can be used without shielding gas. It is recommended for applications involving severe abrasion, or for abrasion coupled with impact.
The weld metal is not machinable.
Good hardness up to 550 °C (1020 °F).
Mineral wear applications as excavator teeth, bulldozer blades, bucket lips, coal screw conveyors, chip chute liners, spreader cones (brick industry), rotary hoe teeth, pulping knives, extrusion of rubber.
Crushers for stone and rock (cement industry - stone quarries).
Hardness: 63 – 67 HRC.
Use a stick-out (distance from contact tip to the extremity of the wire) of 20 to 50 mm (1-2") for open arc welding.
Lastifil 2400G can be used without shielding gas. However the best fluidity and almost spatter free welding is obtained by using an extra gas Ar + 2% O2 (shielding gas M13 according to EN ISO 14175) in the spray arc zone.
For a correct wire feed, use appropriate drive rolls for cored wire in the wire feeder and a water cooled torch that is smoothly inclined.
On crack sensitive steels or for hardfacings where heavy impact occurs, use a base layer of Lastifil 8071.