BÖHLER NiCrMo 2,5-IG is a low-alloyed, high-strength solid wire. It suits welding quenched and tempered high-strength steels in machine building, crane structures and commercial vehicles.
Among the parent materials it covers S620Q, S620QL, S690Q, S690QL, S620QL1, S690QL1 and S650MC. The wire also goes on offshore structures, where the joint works in a marine environment.
- Classification EN ISO: 16834-A G 69 6 M21 Mn3Ni2.5CrMo
- AWS classification: A5.28 / SFA-5.28 ER110S-G
- Shielding gas: M21
- Diameters: 1.0 / 1.2 mm
- Approvals: DB (42.132.73), ABS, BV, DNV, LR; (suppl. list), CE
Do not exceed the permitted interpass temperature, an overheated heat affected zone loses its toughness. Match the drive rolls to the wire diameter and check the liner, wire slip shows up at once in an unstable arc. Watch the wire stick-out from the contact tip, too long a one lowers the arc voltage and worsens the fusion. Match the diameter to the thickness and the position, thinner wires are easier to control in constrained positions.
