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Old 03-23-2013, 11:18 PM
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Welding Patches

I have some patch work to do on my 38 Nash. Floor, trunk area and a few other spots. I have a large roll of stainless steel that I would like to use for the patch work .I figure it is free I don't have to buy sheet metal and also it would not rust. Question? has anyone ever used stainless steel to use for patch work? It is, I would guess at least 18 guage. I have a mig welder for doing the work. I would like to hear your opinions on weather it is a good idea or not. Thank you for your time
Jack

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Old 03-23-2013, 11:25 PM
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Well Jack, you probably have the right gauge of metal...the problem is welding stainless to the metal that you have in your car now, I think you would be better off to spend the money and buy the same kind of steel that the body of car you have came out with...it just make more sense and the rule of thumb is, you repair a rusted area with the same material that was rusted...just like you repair a plastic bumper with the same material or similar material that the bumper was made from. Welding stainless to your car is going to be extremely difficult.

Ray
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Old 03-23-2013, 11:47 PM
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Not only that the stainless is a lot harder to form.

Brian
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Old 03-24-2013, 05:40 AM
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maybe if it was a Delorean
You cant weld stainless to sheetmetal NOT with a mig anyways
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Old 03-24-2013, 09:27 AM
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Quote:
Originally Posted by deadbodyman View Post
maybe if it was a Delorean
You cant weld stainless to sheetmetal NOT with a mig anyways
Or with a tig or a stick welder...the reason being that stainless steel has a higher melting point than regular steel. If you set any welder to point hot enough to get penetration in stainless steel, your going to blow holes and melt regular steel. That's why you repair metal with the same metal anything is made with.

Ray
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Old 03-24-2013, 09:36 AM
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I have MIGed it to steel, a little experiment I did years ago. I don't remember it being that hard, it was very thin stainless steel moulding as I remember.

Brian
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Old 03-24-2013, 10:24 AM
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I'm sure that people have welded stainless to sheet metal...but if your trying to weld 18 gauge stainless to 18 or 20 gauge regular steel...this is where it becomes difficult...stainless requires more temperature to puddle a weld than regular steel, so blowing holes in regular steel is what happens...sheet metal doesn't cost that much...wouldn't the safest bet be to repair the rusted out areas with the same material that requires the same amount or similar amount of heat to achieve the proper amount of penetration and in the end have a repair that will last.

Ray
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Old 03-24-2013, 10:37 AM
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I'm with you Ray, just saying....... But I am with you.

Brian
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Old 03-25-2013, 11:28 AM
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welding patches

I want to thank everyone for answering my question. Looks like the stainless steel is going to be shelved longer. I just thought it would be nice not to have the patch rust with the stainless. Thanks again for all your help!
Jack
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Old 03-25-2013, 11:33 AM
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I guess you could do like Lil' John Buttera did on his '29 Sedan, and just pop-rivet it in (j/k)
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