Pig iron is the most safe or use WE777 cast iron welding rod, often use cast iron welding rod welding, generally do not use argon arc welding wire welding, argon arc welding cast iron is easy to crack, if the structure can only allow with argon arc welding, can use WE777 iron argon arc welding wire, WE77.WE777 have special medicine skin effect, the welding process can produce similar pulse soft arc, the thermal effect of all kinds of cast iron is very small, special pulse arc can remove impurities of all kinds of cast iron surface, even for the oil and long-term immersion of welding cast iron also has the very good permeability and won't produce pores or inclusions, and the heat affected zone will not get very high hardness, using cold welding technology welding molding weld has very good crack resistance, can deal with all kinds of bad environment of parent metal.

Application of WE777 special cast iron electrode

Can suitable for all-around cold welding process of welding, welding almost all of the cast iron base, and it's easy to realize the dissimilar welding of cast iron and carbon steel, solve the fracture, crack, such as matrix wear, fill hole defect of the welding after complete mechanical processing can be done, many occasions used in engine cylinder, cylinder cover, machine bed, casting gear tooth and other kinds of cast iron.

WE777 special cast iron welding rod technical parameters

Tensile strength: ≥70,000 PSI (≥482 Newton/square mm)

Yield strength: generally 62,000 (≥427 Newton/square millimeter)

Hardness (HB) : 185HB

Color match with base material: similar

Power selection: alternating and direct current, dc reverse connection