BÖHLER CM 2-UP is a submerged arc (SAW) wire for welding creep-resistant CrMo steels. It is used on boilers, steam pipelines, refinery installations and parts working at elevated temperature.
The wire works as a set with a matched flux, which decides the mechanical properties of the weld. It is used on mechanised stations, on butt welds in plate and circumferential welds on tanks.
- Classification EN ISO: S S CrMo2 FB
- AWS classification: F8P2-EB3-B3
- Shielding: flux matched to the wire, no shielding gas
- Diameters: 2.5 / 3.0 / 4.0 mm
Do not interrupt welding and do not let the joint drop below the interpass temperature before the fill is finished. Match the flux to this wire and check how dry it is, drying the flux decides the hydrogen level in the weld. Keep an even flux layer over the arc, too thin a layer exposes the arc and too thick a one spoils the bead shape. Match the diameter to the material thickness and the welding position.
