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Old 08-24-2009, 07:35 PM
chadmw7 chadmw7 is offline
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Thanks guys.

I have 3 pieces to weld together - 1/2" x 5 1/2" x 2 3/4" plate to a piece of 2 1/2" steel tubing 2 3/4" long and 1/4" thick. Then I need to weld the other end of the tubing to a 1/2" plate that's 5 3/8" x 1 3/4".

I'm learning about preheating now. The thought did cross my mind but I didn't realize it might make a big difference. If so, how can I know how long to preheat, etc?
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