Equivalent to: GB/T 8110 ER50-6     AWS A5.18 ER70S-6     EN ISO 14341-A-G 3Si1

Characteristics and Applications
MSM-ER70S-6 is a gas-shielded solid welding wire suitable for carbon steel and high-strength steel of ≥490 MPa grade. It features deep weld penetration, excellent welding operability, low fume emission, smooth and stable electric arc, as well as superior non-destructive testing performance. The wire also delivers good low-temperature impact toughness. This product is widely applied in shipbuilding and repairing, marine engineering, pressure vessels, petroleum pipelines, steel structures and other fields.
Notes
1.Welding shall be performed with DC reverse polarity (DC+).
2.Its deep penetration enables the reduction of weld leg size and deposited metal fill, thus lowering the cost.
3.Adopt CO₂ gas with a purity of ≥99.5% or a mixed gas of 80%Ar + 20%CO₂, with a gas flow rate of 15–25 L/min.
4.For multi-pass welding, the interpass temperature should be controlled within the range of 100–150℃.
5.When conducting non-consumable electrode filler wire welding such as TIG, plasma arc or laser welding, the shielding gas shall be 99.99%Ar.

Typical Chemical Composition of Welding Wire (wt%):