Equivalent to: GB/T 8110      ER69-G/76-G/83-G    AWS A5.28 ER100S-G/110S-G/120S-G

Characteristics and Applications
Gas-shielded welding wire for high-strength steel. It features excellent welding operability, low fume emission, almost no spatter, relatively stable electric arc and a wide range of process adjustment. The weld penetration and width can be adjusted by modifying the welding process according to actual requirements. The welds have good low-temperature impact toughness and a high one-time non-destructive testing pass rate. This product is widely applicable to military industry, marine engineering, pressure vessels, petroleum pipelines, steel structures and other fields.
Notes
1.Welding shall be performed with DC reverse polarity (DC+).
2.High deposition rate and deep penetration effectively reduce weld leg size and welding groove angle, thus lowering the cost.
3.Adopt a mixed gas of 80%Ar + 20%CO₂ or CO₂ gas with a purity of over 99.5%, with a flow rate of 15–25 L/min.
4.For multi-layer and multi-pass welding, it is advisable to control the interpass temperature within 100–150℃.
5.When performing 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%):