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Welding Of Grey Cast Iron. To maintain a nice weld use the MIG welder to maintain the lowest feed rate and the lowest current. The repairs may be made in the foundry where the castings are produced or may be made to repair casting.
Grey Iron Vs Nodular Iron Iron Grey Cast Iron from www.pinterest.com
You have determined that gray cast iron is to weld now it is time to choose the iron welding procedures. Approximately 90 of cast irons used are gray cast iron and this is contributed to the production price as gray cast iron. Weld in very small points at a time not larger than 5-10 mm.
Gray Cast Iron Gray cast iron is the most common of all classes of cast irons.
In most cases welding on cast iron involves repairs to castings not joining casting to other members. In composition and structure and in some of its properties it is quite different from steel. Cast iron like steel is an iron-carbon alloy. 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.
