$513.68 USD
Guaranteed toughness at -46 °C for critical joints
Lincoln Electric Excalibur® 7018-1 MR® (AWS E7018-1 H4R) is an iron-powder low-hydrogen electrode with guaranteed low-temperature toughness. Its moisture-resistant coating makes it reliable for bridges, buildings and pressure vessels. In 2.50 mm it is ideal for root passes and thin sections, with good puddle control.
Key advantages
- Low-temperature toughness: 138 J Charpy impact at -45 °C.
- Very low hydrogen: 2 to 3 ml/100 g deposit.
- MR coating: resists moisture pickup.
- All positions: 1G, 2F, 2G, 3G, 4G and 5G.
- Certified quality: LR and ABS approvals.
Applications
- Bridges, buildings and pressure vessels.
- Mild and low-alloy steels.
- Critical joints that require a low-hydrogen deposit.
- Low-temperature service.
Technical specifications
| Classification | AWS A5.1: E7018-1 H4R |
| Approvals | LR · ABS |
| Diameter | 2.50 mm |
| Packaging | 4.54 kg can |
| Current | DC (+) · 70 to 110 A |
| Coating | Basic, iron powder (MR) |
| Tensile strength | 565 MPa (yield 460 MPa) |
| Elongation | 28% |
| Charpy impact | 138 J at -45 °C |
📄 Download technical data sheet (PDF)
Technician's tip: Lincoln's MR coating resists moisture pickup, but it is still a low-hydrogen electrode: once the can is open, keep it in a holding oven and avoid leaving it exposed during the shift.
Why buy from Soldaduras?
With over 50 years of experience, we are specialized distributors of welding, abrasive and polishing supplies. Every purchase comes with real technical support.
✔ Nationwide shipping
✔ Local delivery in the AMBA area
✔ Pickup at 338 Gral. Enrique Mosconi Ave., Lomas del Mirador
✔ Open Monday to Friday, 8 AM to 4 PM
Not sure which diameter or amperage suits your job? Ask us before you buy.
