Inweld ER70S-6 is a high-deoxidizer mild-steel MIG/TIG filler metal engineered for clean, consistent welds on steel with rust, mill scale, or light surface contamination. Formulated with elevated levels of silicon and manganese, this wire delivers strong puddle fluidity, excellent wetting action, and smooth bead appearance across a wide range of welding parameters. Trusted by fabrication shops, repair facilities, and industrial contractors, Inweld ER70S-6 provides a stable arc, low spatter output, and reliable mechanical properties, making it one of the most widely used carbon-steel filler metals in the industry. Whether you're welding structural components, machinery parts, automotive frames, or general fabrication, this wire offers the performance and consistency professionals expect. Sold and supported by HEMSCO Supply, your partner for dependable welding consumables, fast shipping, and professional?grade service.