ER70S-3 mild steel MIG (GMAW) alloy is a general purpose welding alloy for fabrication of mild steel. It contains silicon and manganese as deoxidizers. Usually used with 75/25 argon/carbon dioxide or with higher contents of argon, such as 90/10. It can also be used with 100% carbon dioxide. Qualified to AWS A5.18 ER70S-3.
Features
- General-purpose MIG (GMAW) welding wire for fabrication of mild steel
- Contains silicon and manganese as deoxidizers
- Good out-of-position welding using short circuiting transfer with 90% argon/10% carbon dioxide
- Performance is good over mill scale and rust using carbon dioxide
- Conforms to AISI/AWS A5.18 & ASME SFA 5.18 ER 70S-3