Characteristics：
( 1 ) Collocation high alkaline flux，the impact of the melting gold is superior.
( 2 ) Ray detection is intelligent，welding bead appearance is smooth and beautiful, welding slag stripping is good.
( 3 ) Suitable for flat welding and fillet welding of atmospheric corrosion resistanting steel structure, bridge.
One chemical composition of the weld metal sample (wt%)：
| C | Si | Mn | Cu | Cr | Ni | P | S |
| 0.06 | 0.30 | 1.50 | 0.33 | 0.45 | 0.40 | 0.013 | 0.005 |
One mechanical properties of the weld metal sample：
| Tensile Strength MPa | Yield Strength MPa | Elongation % | Impact Energy Value | |
| ℃ | J | |||
| 620 | 540 | 23 | -40 | 120 |
