Spartus ER309LSi is a stainless TIG rod with raised chromium and nickel for joining stainless steel to carbon and low alloy steels and for buffer layers before 308 welding.
Typical joints: 1.4301 (AISI 304) to S235 or S355. The higher chromium and nickel content leaves room for dilution with carbon steel, so the weld stays austenitic and crack resistant.
- AWS classification: ER309LSi
- EN ISO classification: 14343-A W 23 12 L Si
- Shielding gas: I1 (argon)
- Diameters: 1.0 / 1.2 / 1.6 / 2.0 / 2.4 / 3.2 mm
- Packs: 1 kg and 5 kg
Weld with DC, electrode negative, under argon. Keep the hot end of the rod inside the gas shield at all times, a rod pulled out of the shield oxidises and contaminates the weld. Degrease the rod and the joint edges first.
