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01-04-2008 #1
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As opposed to the standard C02/Argon 75/25 mix? I've never done it. It will most certainly affect the weld, but I don't know how much. Plus, tri-mix is more expensive than the dual mix. I can't recommend it.Can I run tri-mix with mild steel without problems?
jpJohn Parsons
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01-04-2008 #2
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For MIG welding stainless steel, you may want to try A-1025 for your shielding gas. A-1025 is a tri-mix in that it contains three gases. But there are different blends of these gases, with the A-1025 being optimum. Results on mild steel won't be as good as 75/25.
Straight argon is used for TIG welding aluminum, stainless steel, and also mild steel.
You should also consider which grade of stainless steel you are welding and use the appropriate wire. If you will be welding dissimilar metals that will require a different wire also. Just because you are welding 304 base metal doesn't necessarily mean you use 304 wire, most people will elect to use 308.
Chris
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