ED029049 - Lincoln Excalibur 7018-1 MR 1/8" Stick Electrode (50lb Can)

Premium Low-Hydrogen Structural Electrode

The Lincoln Electric Excalibur 7018-1 MR is a premier choice for industrial fabrication requiring the highest standards of weld integrity and operator efficiency. Designated as an AWS E7018-1 H4R electrode, this product is engineered specifically to address the challenges of moisture absorption in low-hydrogen coatings. The "MR" (Moisture Resistant) formulation significantly slows the rate of moisture pickup, ensuring that the electrode maintains its low-hydrogen status (H4) for longer periods under humid conditions. This characteristic is critical for preventing hydrogen-induced cracking (cold cracking) in high-strength steels and restrained joints.

Technically, the Excalibur 7018-1 delivers exceptional mechanical properties, meeting the rigorous impact toughness requirements of the "-1" suffix. It provides reliable Charpy V-Notch impact values at temperatures as low as -45°C (-50°F), making it suitable for offshore platforms, petrochemical piping, and heavy infrastructure in cold climates. The electrode operates efficiently on both DCEP and AC polarities, offering versatility across different power sources. Its chemical composition is tightly controlled to ensure consistent X-ray quality welds, essential for code-work in pressure vessels and power generation facilities.

For inventory and quality control managers, the consistent burn-off rate and reduced spatter levels translate to lower post-weld cleaning costs and higher deposition efficiency. The 3.2mm (1/8") diameter is a versatile size, capable of handling root passes in heavy plate or fill and cap passes in pipe welding applications. Packaged in Lincoln's hermetically sealed Easy Open cans, these electrodes arrive factory-fresh, minimizing the immediate need for re-baking if used within the exposure limits.