Thermanit 308 Mo is a high alloyed stainless TIG rod for special applications. It is used on process installations, heat exchangers, sanitary structures and parts exposed to corrosion.
You feed the filler into the pool by hand while the arc burns between the tungsten electrode and the weld. The rod suits root runs, thin walls and welds that need a smooth face.
- Classification EN ISO: 14343-A W 20 10 3
- AWS classification: A5.9 / SFA-5.9 ER308Mo (mod.)
- Shielding gas: I1
Use brushes and discs kept only for stainless steel, carbon steel particles cause rust staining on the bead face. Keep the rod inside the gas shield even after you lift it from the pool, a cold oxidised end will contaminate the next drop. Set the gas post-flow long enough for the pool and the electrode to cool under the shield. Do not hold the joint hot longer than you need to, austenite expands strongly and pulls the structure out of shape.
