Welding Malleable Iron. Taper threads are to ISO 7-1. The surface of malleable cast iron is very much like gray cast iron but is generally free from sand.
Welding-cast-iron deals with classes known as Gray Malleable and Nodular or Ductile according to typical appearance of their microstructure which affects their properties. Care should be taken to limit weld penetration as far as possible otherwise cracking may occur. Ad China Automatic Welding Machine.
Malleable cast iron is just white iron thats been slowly cooled after its been cast into shape.
It has ductility approaching that of mild steel. As the name suggests the cast inside it has been transformed into a malleable structure so it may transfer its form again if youre even trying to weld. Care should be taken to limit weld penetration as far as possible otherwise cracking may occur. Any welded part should be annealed after welding.