ED033871 - Lincoln Excalibur 7018 MR 5/32 Stick Rod 50lb Can

Premium Low-Hydrogen Welding Electrodes

The Lincoln Electric Excalibur 7018 MR is a premier mild steel stick electrode designed for critical welding applications requiring the highest levels of integrity and mechanical properties. This 4.0mm (5/32-inch) electrode is formulated with a specialized moisture-resistant (MR) coating that significantly reduces the rate of moisture pickup in humid environments. By maintaining low diffusible hydrogen levels (H4R designation), this electrode minimizes the risk of hydrogen-induced cracking (cold cracking) in the heat-affected zone, making it an essential consumable for high-stress structural fabrication and pressure vessel manufacturing.

Engineered for versatility and performance, the Excalibur 7018 MR operates exceptionally well on both DCEP and AC polarities. The iron powder coating enhances deposition rates while providing a smooth, stable arc with minimal spatter. The electrode features a square coating burn-off, which aids in directing the arc and ensuring deep, consistent penetration. Its slag system is designed for easy removal, often peeling off in large sections to reduce inter-pass cleaning time and improve productivity. The 4.0mm diameter is optimal for fill and cap passes on thicker plate materials where higher heat input and deposition are required.

This product meets AWS A5.1 specifications for E7018 H4R, ensuring it delivers a minimum tensile strength of 70,000 psi. It is widely utilized in industries such as petrochemical processing, power generation, and heavy construction. The 50lb hermetically sealed can ensures the electrodes remain factory-fresh until opened, though standard rod oven storage procedures should be followed after opening to maintain the low-hydrogen characteristics required for code-quality work.