Thermanit MTS 3 is a low-alloy, creep resistant submerged arc (SAW) wire. It works in power plant, on superheaters, headers and pressure pipework in chromium molybdenum steels.
The wire suits grades such as 1.4903 and ASTM A 199. It also suits cladding runs on steel, and its deposit resists creep at elevated temperature.
- Classification EN ISO: 24598-A S S CrMo91
- AWS classification: A5.23 / SFA-5.23 EB91
- Shielding: flux matched to the wire, no shielding gas
- Diameters: 1.2 / 1.6 / 2.0 / 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.
