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ED029050 - Lincoln Excalibur 7018-1 MR 4.0mm Low Hydrogen Stick Electrodes

Packaging: 5kg tube
$19.94/kg $49.90/5kg tube only $9.98/kgSave 50%

In stock

OVERVIEW

Experience the Excalibur Difference

If you are looking for a stick electrode that runs smooth, strikes easy, and leaves a bead you can be proud of, the Lincoln Excalibur 7018-1 MR is the rod for you. Known among professional welders as one of the easiest-running low-hydrogen rods on the market, Excalibur delivers a buttery smooth arc that gives you exceptional control over the puddle. The 4.0mm size is perfect for laying down serious metal in flat and horizontal positions, while still being manageable for vertical-up work on heavier sections.

One of the biggest frustrations with stick welding is fighting the slag. Excalibur 7018-1 solves this with its self-peeling slag characteristics. In many cases, the slag will lift off by itself as the weld cools, or require just a light tap to reveal a clean, shiny bead underneath. This means less time chipping and grinding, and more time burning rods. The arc stability is fantastic on both DC+ and AC, making it forgiving if your fit-up isn't perfect or if you are working with older power sources.

Restriking a partially used rod can often be a headache with low-hydrogen electrodes, but Excalibur is designed to minimize porosity at the start and restart easily without sticking. The "MR" coating also means the rod stays fresh longer when out of the oven, giving you a larger window of usability in humid field conditions. Whether you are welding pipe, repairing heavy equipment, or framing a structure, this electrode gives you the confidence that your welds will hold up and look good doing it.

Additional Information
Brand:Lincoln Electric
AWS Spec:E7018-1
Diameter:4.0mm (5/32")
Position:All
Polarity:AC/DCEP
Amp Range:135-220 A
Rod Type:Stick, Low Hydrogen
AWS Classification:E7018-1 H4R
Coating Type:Basic, Iron Powder
Welding Position:All Position
Current Type:DCEP, AC
Tensile Strength:70,000 psi (min)
Packaging Description:5kg tube

INCLUDED

  • Lincoln Excalibur 7018-1 MR 4.0mm Stick Electrodes
  • Hermetically sealed packaging

APPLICATIONS

  • Structural Steel Fabrication
  • Pressure Vessels and Piping
  • Petrochemical Industry
  • Power Generation Plants
  • Shipbuilding and Offshore Platforms
  • Heavy Equipment Repair
  • Construction and Field Erection

FAQ

The '-1' suffix indicates that the electrode has been tested to provide better impact toughness (Charpy V-Notch) at lower temperatures (-50°F) compared to standard E7018, making it suitable for critical applications requiring high ductility.

For a 4.0mm (approx. 5/32 inch) electrode, the recommended amperage range is typically between 135 and 220 amps, depending on the position and base metal thickness.

'MR' stands for Moisture Resistant. This indicates the coating is formulated to resist absorbing moisture from the air, which helps prevent hydrogen-induced cracking in the weld.

Yes, Lincoln Excalibur 7018-1 MR is designed to operate smoothly on both DCEP (Direct Current Electrode Positive) and AC (Alternating Current).

Yes, as a low-hydrogen electrode, once the hermetically sealed container is opened, they should be stored in a rod oven at 250°F-300°F to maintain their low-hydrogen status.

Yes, Excalibur 7018-1 is an all-position electrode. However, 4.0mm is a larger diameter, so vertical-up welding requires skill and appropriate heat settings to manage the puddle.

They are widely used in industries requiring code-compliant welds, such as structural construction, bridge building, petrochemical piping, and power generation.

CATALOGUE & SPEC SHEETS

Spec Sheet