E9015-G Low Alloy Steel Welding Electrode
E9015-G Low Alloy Steel Welding Electrode Application
E9015-G is a low-hydrogen, high-toughness, high-strength steel electrode with low hydrogen sodium type coating. With DC reverse connection, all position welding can be performed. It has excellent welding process performance, stable arc, small spatter, easy slag removal, and beautiful weld appearance. Deposited metal has excellent plasticity, toughness and cracks resistance
E9015-G is a basic Cr-Mo-Ni-V-W-Nb alloyed electrode. It is suited for welding of high-temperature steel 9%Cr-1.5% W-Mo-Nb-N (NF 616, P 92). This welding electrode is approved in long-term condition up to +650 °C service temperature.The electrode features a stable arc, good striking and re-striking properties, low spatter loss and an easily removable slag.
This alloy can be used for welding medium carbon steel and low alloy steel structures with corresponding grade strength.
E9015-G Low Alloy Steel Welding Electrode Instruction
Preheating and interpass temperature 200 – 300 °C. After welding the joint should cool down below 80°C, to finish the martensite transformation. In case of greater wall thickness or complex components, the possibility of residual stresses must be considered.
The following post weld heat treatment is recommended: Annealing 760°C/min. 2 hours, max. 10 hours, heating/cooling rate up to 550 °C max. 150 °C/h, above 550 °C max. 80 °C/h. In case of heat treatments less than 2 hours.
the requirements have to be proved by a procedure test. For optimized toughness values a welding technology should be applied which produces thin welding layers (approx. 2 mm).
E9015-G Low Alloy Steel Welding Electrode Chemical Composition
| C | Mn | Si | S | P | Ni | Mo | |
| Requirement | ≤0.12 | 1.20-1.8 | ≥0.80 | ≤0.03 | ≤0.03 | 0.80-1.4 | 0.20-0.4 |
| Typical | 0.06 | 1.4 | 0.28 | 0.008 | 0.018 | 1.1 | 0.31 |
Mechanical Properties
| Tensile Strength Rm/MPa |
Yield Strength Rel/Rp0.2 MPa |
Elongation A/% |
Charpy V Impact ValueKV2（J）-40℃ |
|
| Requirement | ≥640 | ≥540 | ≥15 | ≥54 |
| Typical | 700 | 628 | 24.8 | 92 |
E9015-G Low Alloy Steel Welding Electrode Welding Current
| Dia（mm） | 2.5 | 3.2 | 4 | 5 |
| Current（A） | 70-100 | 100-140 | 140-180 | 180-220 |
Please note that the above specifications are “general specifications” that pertain to the majority of our production. These specifications should only be used for general, informational purposes. For the actual specification, please check with us when you place the order.
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