Mild Steel

Mild steel MIG wire built around the ER70S-6 classification — CIGWELD Autocraft LW1-6 and WeldSkill 70S-6, WIA Austmig ES6 and ESD2, and UNIMIG Hypermig — on 0.9kg, 5kg and 15kg spools, with pallet lots for production lines. It handles general fabrication, structural steel and repair work under CO2 or argon-based mixed gas.

Which MIG wire size should I use for general fabrication?

0.8mm and 0.9mm wires suit thin sheet and light-duty machines; 0.9mm to 1.2mm covers most general fabrication from 3mm plate up; 1.2mm and above earns its keep on heavy sections where deposition rate matters more than fine control. Match the wire to your drive rolls and contact tip, not just the job.

WeldCo keeps the common sizes on the shelf in Melbourne and Adelaide for same-day trade pickup.