High manganese content in cast iron provides excellent weld-ability of the material.(a) True(b) FalseI have been asked this question by my college director while I was bunking the class.Origin of the question is Cast Irons topic in section Foundry Introduction & Materials of Casting-Forming-Welding II

High manganese content in cast iron provides excellent weld-ability of

1.	High manganese content in cast iron provides excellent weld-ability of the material.(a) True(b) FalseI have been asked this question by my college director while I was bunking the class.Origin of the question is Cast Irons topic in section Foundry Introduction & Materials of Casting-Forming-Welding II
Answer» Right choice is (b) False To explain I would say: Cast iron mostly contains 2 to 5% carbon, 1 to 3% silicon and approx 1% manganese. The presence of such contents makes their weld-ability POOR. Cast irons are RELATIVELY cheap and can be easily casted into any complex shapes and MACHINED, but most of the grades of cast iron are not weld-able.

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