ER308L is a low-carbon solid MIG wire for 304/304L and related stainless steels. Its ≤0.03% carbon content supports corrosion-resistant welds in fabrication, tanks, food equipment, and repair work; external shielding gas is required. Materials and Applications 304 and 304L stainless steel 308 and 308L stainless steel 321 and 347 stainless steel Stainless fabrication, tanks, food equipment, and repair work Key Specifications Classification: ER308L Process: MIG Carbon content: ≤0.03% Shielding gas: Argon-based MIG shielding gas; follow the applicable welding procedure Spool weight: 2 lb (0.9 kg) Spool diameter: 4" (102 mm) Diameter options: .030" (0.8 mm) and .035" (0.9 mm) Welder and Gas Requirements Use a MIG setup that accepts a 4" (102 mm), 2 lb (0.9 kg) spool and the selected wire diameter. Follow the applicable stainless-steel shielding-gas procedure.