Washington Alloy TC 70S-2 01 is an ER70S-2 solid MIG wire in 0.045 in (1.2 mm) diameter, supplied on a 33 lb (15 kg) spool. ER70S-2 is commonly selected for clean, low-alloy and mild steel work where you want good puddle control and consistent wetting, especially on material that’s been properly prepped. Key specs Brand: Washington Alloy Part number: TC 70S-2 01 Classification: ER70S-2 (AWS A5.18 / ASME SFA-5.18) Diameter: 0.045 in (1.2 mm) Spool weight: 33 lb (15 kg) Quantity: Pack of 1 Typical applications Mild steel and low-alloy steel fabrication General shop welding, maintenance, and repair Work where surface cleanliness and fit-up are controlled (best results on properly cleaned steel) Process & setup notes (verify to your machine) Process: GMAW (MIG) solid wire Shielding gas: Unknown (depends on your procedure and desired arc characteristics—verify with your WPS or Washington Alloy data sheet) Polarity: Typically DCEP for solid MIG wire (confirm per your procedure) Fitment / compatibility checklist (before ordering) Confirm your feeder accepts 33 lb spools (hub size and spool width). Confirm your drive rolls and liner are correct for 0.045 in solid wire. Match shielding gas and parameters to your WPS or manufacturer recommendations. Safety notes Use proper ventilation or fume extraction (ANSI Z49.1 guidance). Wear appropriate PPE: welding helmet with correct shade, gloves, FR clothing, and eye protection for grinding/handling wire. Keep wire clean and dry to reduce feeding issues and weld defects.