STEELOMATIC-309
STEELOMATIC-309
DESCRIPTION AND APPLICATIONS: It is Rutile coated electrode giving 25 Cr-12 Ni deposit having excellent resistance to corrosion and oxidation up to 1100°C. The electrode gives excellent Radiographic quality weld. Besides similar stainless steel, it is extensively used in dissimilar metal joining between MS and low alloy steel and steel and stainless steel, overlaying and buffering application, welding straight chromium steels etc.
NOTES ON USAGE:
- Ensure that electrodes are dry enough. In case of moisture pick-up, ready the electrodes at 250°C for 30 to 60 minutes. Thereafter, either allow the oven to cool slowly to about 60° C, or transfer them to a holding oven maintained at 50°C – 60°C.
- Clean the joint faces to remove moisture, grease or any foreign matter.
- Employ welding currents within the prescribed range.
- Keep the arc as short as possible.
- Restrict weaving of electrode to within two and a half times the core wire diameter.
- Use stainless steel wire brush for cleaning the weld beads.