You can use 100% CO2 for deeper penetration and lower cost, or a mix of 75% Argon / 25% CO2 (C25) for a smoother arc, less spatter, and a flatter bead profile.
Yes, the ER70S-6 classification contains higher levels of manganese and silicon deoxidizers, making it the best choice among solid wires for welding on steel with light to moderate rust or mill scale.
This solid MIG wire requires Direct Current Electrode Positive (DCEP), also known as Reverse Polarity.
This spool typically requires a welder that accepts 12-inch diameter spools. It is standard for industrial and many medium-sized 200A+ MIG machines. Check your machine's manual for maximum spool size capacity.
ER70S-6 has more deoxidizers (silicon and manganese) than ER70S-3. This makes S-6 better for dirty steel, while S-3 is often used on clean, new steel where less cleaning action is required.
No, this is a mild steel wire. You need aluminum wire (like ER4043 or ER5356) and 100% Argon gas to weld aluminum.
0.030" wire is very versatile. It is excellent for sheet metal (22 gauge) up to about 1/4" or 5/16" steel with multiple passes.
