Toymods Car Club Inc: Tech & Conversions => Steel ~ What type to use for this application?

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HighRolla
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January 2004

Re: Steel ~ What type to use for this application?	Tue, 17 February 2004 12:31

2cents: If you want to weld with MIG bear in mind that most MIG welders are set up with something like a 15kg spool of filler wire. Usually this is pretty average quality to weld mild steel so do your homework on what you can get. You can get MIG to weld aluminium but need teflon lining through the torch...not generally done need expensive machine. As old corolla said check that you can match up the filler wire/rod to what you are welding. Stainless comes out nice with TIG. We've made a fuel tank from Aluminium I think 6 series..just be careful of the filler rods, we ended up getting these 99.9% pure aluminium rods (TIG).. I think for 2000 series or something but they seemed to be compatible with most grades (6 series etc). Other filler rods with silicon or magnesium (can't remember)added caused contamination. Cracks in welds are a real problem and is maybe the reason you should stick to steel of some kind. 4130 Chrome Molybdenum has some resistance to corrosion as already stated. British International Trading can help you out with getting sheets of 4130 but maybe chat to a few more people that have built tanks for race cars, road cars etc. Experience is everything! PS I hate welding gal..it stinks and heard its not good 4 u Handmade tanks are generally done with TIG I think. Give a few welding supplies shops a call..I found a few of the old fellas in there knowledgabe and helpful, just judge which ones you listen to I guess. If it's worth anything..with Al it is so crucial to get the pieces you are welding "clean" . Using acetone works..just keep it away from welder when welding. Also a stainless steel brush that hasn't been contaminated, or soaping up and washing at sink with a scotchbrite. As soon as you get blackness - from touching tip etc clean off using one of above. [Report message to a moderator]

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