JACKSUN ULTRA 12018 M is a low-hydrogen, premium electrode designed for welding quenched and tempered steels requiring high tensile strength and toughness. It ensures excellent arc stability, deep penetration, and smooth bead appearance. Suitable for heavy structural steels, pressure vessels, pipelines, and critical high-strength components.
| C | Mn | Si | Ni | Mo | Cr | S | P |
| ≤ 0.12 | 1.30 – 2.25 | ≤ 0.65 | 1.75– 2.50 | 0.3 – 0.55 | 0.3 – 1.50 | ≤ 0.025 | ≤ 0.025 |
| Property | UTS (MPa) | Yield Strength (MPa) | Elongation (%) | Impact Toughness (J @ 0 °C) |
| Requirement | ≥ 830 | ≥ 740 | ≥ 18 | ≥ 47 |
| Typical Values | 920 – 1280 | 820 – 1080 | 18 – 28 | 55 – 80 |
| Size (mm) | Size (inch) | Current Range (A) | Polarity | Voltage (V) | Packing (5 kg) | Packing (20 kg) |
| 2.5 | 3/32 | 50 – 90 | AC / DC+ | 20 – 22 | ✔ | ✔ |
| 3.2 | 1/8 | 90 – 130 | AC / DC+ | 22 – 24 | ✔ | ✔ |
| 4.0 | 5/32 | 120 – 180 | AC / DC+ | 24 – 26 | ✔ | ✔ |
| 5.0 | 3/16 | 160 – 240 | AC / DC+ | 26 – 28 | ✔ | ✔ |
Share your welding process, base material and application requirements. Our team will help you select the suitable product.
Tested for consistent performance.
Reliable distribution and timely supply.
Manufacturing capacity you can depend on.
Technical guidance for product selection.
