Thermanit X is a high alloyed austenitic stainless submerged arc (SAW) wire for special applications. It works on pressure vessels, pipework and austenitic steel structures where corrosion resistance matters.
The wire works as a set with a matched flux, which decides the mechanical properties of the weld. It is also meant for hardfacing surfaces exposed to abrasion, and its deposit has an austenitic structure that resists corrosion.
- Classification EN ISO: 14343-A S 18 8 Mn
- AWS classification: A5.9 / SFA-5.9 ER307 (mod.)
- Shielding: flux matched to the wire, no shielding gas
Keep the interpass temperature low and the beads narrow, overheating austenitic steel promotes carbide precipitation and distortion. Keep an even flux layer over the arc, too thin a layer exposes the arc and too thick a one spoils the bead shape. Watch the wire stick-out and the position of the head against the weld centre line, under a flux you cannot see the pool and a mistake shows only after the slag is chipped off.
