AWS E7018-G E7015-G
Description: J506NiMA and J507NiMA are moisture-absorbing ultra-low hydrogen-coated low-alloy steel electrodes. The deposited metal has excellent plasticity, low-temperature toughness and crack resistance, and can be welded in all positions. The coating is resistant to moisture absorption. After the electrode is baked at 400°C x 1h and parked in an environment with a relative humidity ≥ 80% for 4 hours, the moisture content of the coating still meets the requirements for use. Application: It is used for the welding of oil platforms, ships, pressure vessels, and other structures made of carbon steel and low alloy steel. Chemical composition of weld metal(%):| C | Mn | Si | Ni | S | P | |
| Guaranteed | ≤0. 12 | ≥1.00 | ≤0.50 | ≤0.60 | ≤0.035 | ≤0.040 |
| Test item | Tensile strength Mpa | Yield strength Mpa | Elongation % | Impact value (J) -46℃ |
| Guaranteed | ≥490 | ≥390 | ≥22 | ≥27 |
| Rod diameter | 2.5 | 3.2 | 4.0 | 5.0 |
| Welding Current | 60 ~ 90 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |