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Old 03-24-2006, 09:06 PM
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I would never use flux core on something as critical as a suspension. I have been repairing mining machinery for over 35 years and we have used flux core in sizes from .030 to 1/8" and I can assure you it is not as strong as MIG nor does it claim to be, look at the specs. Flux core in the smaller sizes (.030-.035) is ok for sheet metal, although a bit messy, and other non critical welds but should never be considered for something requiring maximum strength. Flux core is very useful in drafty conditions and in situations where strength is not an issue but it is not a replacement for MIG, TIG or stick when strength counts. Over the years we have tried every trick in the book to make the most of flux core but with little success, if you look at the spec sheet that comes with the flux core wire you will find that one of the "ingredients" is aluminum nuff said!
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