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How To Arc Weld Light Gauge Steel. The fabrication of light gage steel framing wall and floor panels consists of cutting the members to length fitting the sections together and fastening the sections by welding or screw attachment. To weld mild steel choose an American Welding Society classification wire such as ER70S-6.
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Farmer rods or better E7018 116 welding rods which need to be baked before use Thin sheet metal 0021 was what I used. The most common weld types to connect framing members are the fillet weld and the flare groove weld. A standard arc welder is undoubtedly the best way to weld galvanized steel.
Its recommended to use a023- or024-inch wire for most light gauge sheet metal work.
These welding units can typically furnish a current out-put range of 30 to 250 amperes at 30. Historically stick welding of light-weight galvanized steel framing has been accomplished with transformer rectifier welding units requiring either single or 3-phase 230-volt 50 ampere DC. For 332 7018s its about the same. To weld mild steel choose an American Welding Society classification wire such as ER70S-6.
