Washington Alloy TC 70S-2 MIG Wire (.023", 2 lb Spool) Washington Alloy TC 70S-2 is a high-quality ER70S-2 mild steel MIG wire designed for clean, consistent welds on carbon steel and mild steel applications. The .023" diameter makes it ideal for thin material, sheet metal, and precision work where heat control and puddle stability matter. Formulated with added deoxidizers (aluminum, titanium, and zirconium), 70S-2 performs especially well on steel that isn’t perfectly clean, helping reduce porosity and improve bead appearance. This makes it a solid choice for fabrication shops, automotive work, maintenance repairs, and light industrial welding. Precision-wound on a 2 lb spool for smooth, tangle-free feeding, this wire delivers stable arc performance and reliable starts across a wide range of MIG welding setups.