Product Introduction
Equivalent to: GB/T 8110 ER55-G AWS A5.28 ER80S-G
Characteristics and Applications
MSM-WER80S-G is a gas-shielded, microalloyed, copper-free stranded solid welding wire intended for high-strength steel with a tensile strength of ≥550MPa. Adopting DC reverse polarity, it features deep penetration, excellent all-position welding operability, low fume emission, smooth and stable electric arc, as well as superior non-destructive testing performance.
Trace alloying elements including Mo, B and Ti are added to the wire, and microalloying is realized through the controlled rolling and cooling process. While improving the weld strength, it also greatly enhances the low-temperature impact toughness, with the low-temperature impact value reaching approximately 180 J at -20℃, 120 J at -40℃, and 90 J at -60℃. This product is widely applied in shipbuilding, bridge construction, marine engineering, pressure vessels, petroleum pipelines, steel structures and other fields.
No copper plating process is required during the processing of this microalloyed material, and no toxic chemicals are used, making it a fully eco-friendly mechanical processing product.
Notes
1.Weld with DC reverse polarity (DC).
2.Owing to its deep penetration, the weld leg size can be reduced and the deposition metal filling amount can be decreased, thus cutting down the cost.
3.Use CO₂ with a purity of over 99.5% as shielding gas, or a mixed gas of 80%Ar + 20%CO₂; alternatively, use 99% pure Ar for TIG welding. The gas flow rate shall be 15–25 L/min.
4.For multi-pass welding, the interpass temperature should be controlled within the range of 100–150℃.
5.When using non-consumable electrode filler wire welding processes such as TIG, plasma arc or laser welding, the shielding gas shall be 99.99% pure argon.
MSM-WER80S-G is a gas-shielded, microalloyed, copper-free stranded solid welding wire intended for high-strength steel with a tensile strength of ≥550MPa. Adopting DC reverse polarity, it features deep penetration, excellent all-position welding operability, low fume emission, smooth and stable electric arc, as well as superior non-destructive testing performance.
Trace alloying elements including Mo, B and Ti are added to the wire, and microalloying is realized through the controlled rolling and cooling process. While improving the weld strength, it also greatly enhances the low-temperature impact toughness, with the low-temperature impact value reaching approximately 180 J at -20℃, 120 J at -40℃, and 90 J at -60℃. This product is widely applied in shipbuilding, bridge construction, marine engineering, pressure vessels, petroleum pipelines, steel structures and other fields.
No copper plating process is required during the processing of this microalloyed material, and no toxic chemicals are used, making it a fully eco-friendly mechanical processing product.
Notes
1.Weld with DC reverse polarity (DC).
2.Owing to its deep penetration, the weld leg size can be reduced and the deposition metal filling amount can be decreased, thus cutting down the cost.
3.Use CO₂ with a purity of over 99.5% as shielding gas, or a mixed gas of 80%Ar + 20%CO₂; alternatively, use 99% pure Ar for TIG welding. The gas flow rate shall be 15–25 L/min.
4.For multi-pass welding, the interpass temperature should be controlled within the range of 100–150℃.
5.When using non-consumable electrode filler wire welding processes such as TIG, plasma arc or laser welding, the shielding gas shall be 99.99% pure argon.
Typical Chemical Composition of Welding Wire (wt%):
| C | Mn | Si | P | S | Cr | Ni | Mo | Cu |
Typical Value | ≤0.10 | ≤1.80 | ≤0.60 | ≤0.015 | ≤0.010 | ≤0.50 | ≤0.50 | ≤0.35 | ≤0.50 |
