According to the classification of slag properties, the LSAW can be divided into two categories: acid welded pipe rod and alkaline welded pipe. The electrode whose slag is mainly acid oxide is called acid electrode. The electrode whose slag is mainly alkaline oxide and calcium fluoride is called alkaline electrode.

Acid electrode:

1. Not very sensitive to water and rust, baking at 100～150℃ for 1h before use

2. Stable arc, AC or DC welding can be used

3. Large welding current

4. Long arc operation possible

5. Poor transition effect of alloying elements

6. The penetration depth is shallow, the weld formation is better

7. The slag is glassy and it is easy to remove the slag

8. Normal and low temperature impact toughness of weld

9. The weld has poor crack resistance

1o. The high hydrogen content of welds affects plasticity

11. Less smoke and dust during welding

Changsha Xiangjia Metal Materical Co., Ltd. the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,000 tons per annual will ensure the good quality and competitive duration of our products.