Description: ER70S – 3 argon arc welding wire
ER70S – 3 for carbon steel TIG welding wire, it has excellent welding technology, arc stability, weld forming and beautiful.
Used for carbon steel and 500 mpa grade single channel and multi-channel welding of low alloy steel, such as Bridges, vehicles, mechanical structure of the welding
GB/T ER50-6 SG2 DIN JIS YGW12
AWS ER70S – 6 BS A18 EN G3Si1
Commonly used specifications: 1.6 mm to 2.0 mm to 2.5 mm to 3.2 mm
1. The protection gas flow: current during 100-200 – a 9-14 l/min, current during 200-300 – a 14 to 18 l/min. Tungsten electrode extended length is about 3 to 5 mm, arc length 1-3 mm;
1.0 m/s wind speed limit or less; Suggestions on the underside of the weld zone argon gas protection.
2. The size of the welding line energy directly affect the mechanical properties of welds, users according to actual condition adjust line energy.
3. The welding area should strictly removing oil and rust and water such as a magazine.