Shielded metal arc welding of dissimilar metals such as stainless steel to carbon steel or low alloy steel. Under layer welding of the cladded side groove of SUS304L clad steel, or 308L weld overlaying onto carbon steel or low alloy steel.

Characteristics on usage:

NC-39L is a lime-titania type electrode.

As the weld metals contain larger quantity of ferrite in austenitic structure, the weldability is good and they provide good corrosion resistibility and good heat resistibility in as-welded condition. They are suitable where the dilution by a base metal of carbon steel or low alloy steel is considerable.

Notes on usage:

1. Keep the arc as short as possible.

2. Weaving width should be within two and a half times of electrode's diamater.

3. When the electrodes have absorbed moisture. dry them at 150~200C for 30~60 minutes before use.

4. Usually, preheat is not necessary.

5. Recommended welding current