Thermanit 25/04 is a high alloyed austenitic stainless TIG rod. It is used on process installations, heat exchangers, sanitary structures and parts exposed to corrosion.
The rod joins grades such as 1.4347, 1.4340, 1.4745, 1.4746, X8CrTi25, 1.4762 and 1.4776, along with related materials. Its deposit resists corrosion, and you feed the filler into the pool by hand while the arc burns between the tungsten electrode and the weld.
- Classification EN ISO: 14343-A W 25 4
- Shielding gas: I1
- Diameters: 2.4 mm
Keep the interpass temperature low and the beads narrow, overheating promotes carbide precipitation and distortion. 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, the structure expands and pulls out of shape.
