Welding Cast Iron
12-08-2003, 10:07 AM
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Welding Cast Iron
We have welded several pickups for monster trucks ,usually tig, and stainless.
but if the piece is cast iron the best rod to use on /A/C CURRENT Tig welding procedure is>> a-2 welding rod. which is aluminum/nickle bronze and we have welded several of the Mercruiser exhaust manifolds or anything made of cast iron.
but if the piece is cast iron the best rod to use on /A/C CURRENT Tig welding procedure is>> a-2 welding rod. which is aluminum/nickle bronze and we have welded several of the Mercruiser exhaust manifolds or anything made of cast iron.
12-08-2003, 11:21 AM
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I've welded CI by DC (I think) stick. Can't remember what rod I used (too many years ago), but I do remember that it was a special rod.
I know you should preheat the material to several hundred degrees prior to welding to prevent thermal shock. Then stopping every so often to reheat the material and allow a slow cool down at completion.
CI gets very brittle during the welding process. If not done correctly it will fracture along side of the welded area.
Sounds like you've got a good welder working for you.
Good job.
I know you should preheat the material to several hundred degrees prior to welding to prevent thermal shock. Then stopping every so often to reheat the material and allow a slow cool down at completion.
CI gets very brittle during the welding process. If not done correctly it will fracture along side of the welded area.
Sounds like you've got a good welder working for you.
Good job.
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