Shielded metal arc welding of steel sheet structures in ships, railway vehicles and cars made of mild steel.

Characteristics on usage:

RB-26 is a high titania type covered electrode which makes it possible to do vertical download welding with the diamaters up to 5.0mm.

The arc is stable with little spatter and the lustrous bead can be obtained. RB-26 is most suitable for welding the structures which need vertical downward welding in particular while it is suitable for welding steel sheets and light structures because of shallow penetration.

Notes on usage:

1. In the case of vertical downward welding, manipulate the electrode keeping its tip in contact with mother plate as shown in the sketch.

2. Pay attention not to exceed the range of proper currents. Welding with exccessive current not only lowers X-ray soundness, but also causes increase of spatter, undercut and insufficient slag covering.

3. Dry the electrodes at 70C - 100C for 30-60 minutes before use. Excessive moisture absorption lowers usability and may result in some porosities.