0.8 mm~3.2 mm Sino Erli TG309 TIG stainless steel solid welding wire ER309 S309

The main component of the welding wire is 22Cr-12Ni, which is a stainless steel TIG welding wire. The welding is smooth, the weld bead is smooth and flat, and the deposited metal has good mechanical properties, crack resistance and oxidation resistance, as well as excellent corrosion resistance.
It is often used for welding the same type of stainless steel, stainless steel lining, dissimilar steel (06Cr19Ni10 and low carbon steel) and high Cr, high Mn steel, etc.

 Attention:

1. Shielding gas: pure Ar; flow rate: 9~14L/min when the current is 100~200A, and 14~18L/min when the current is 200~300A.
2. Tungsten pole extension length: 3~5mm; arc length: 1~3mm.
3. The wind speed is limited to ≤1.0m/s; it is recommended to pass argon protection on the back of the welding area.
4. In welding, the magnitude of the welding heat input directly affects the mechanical properties and crack resistance of the weld metal, and more attention should be paid.
5. Remove the rust, moisture, oil, dust, etc. from the welding part.
The above suggestions are for reference only, and the actual conditions on site shall prevail in specific operations. If necessary, perform process qualification first and then determine the welding plan.