Cast Iron

Cast irons represent an interesting class of ferrous materials for a large number of applications in the engineering industry. These materials are defined as iron-based alloys containing a carbon content of not less than 2% with important addition of silicon (1-3%).

• white cast iron
• grey (lamellar graphite) cast iron,
• ductile or nodular cast iron
• malleable cast iron
• vermicular(compacted) graphite cast iron
• bainitic cast iron or austempered ductile iron-ADI
• austenitic and highly alloyed cast iron

Not all cast iron types are weldable. Also, special precautions are required for the weldable grades such as ductile and bainitic cast irons, malleable and grey cast irons. Furthermore, the welding process, the welding method and the type of filler metal have to be adapted to each case of welding repair or type of assembly.