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ED038107 - Lincoln Excalibur 7018-1 MR 3/32" Stick Electrodes (50lb Can)

Packaging: 10lb tube
$6.58/lb $54.00/10lb tube only $5.40/lbSave 18%

In stock

OVERVIEW

Lincoln Electric Excalibur® 7018-1 MR®: The Welder's Choice

Experience the difference that a premium coating makes with Lincoln Electric's Excalibur® 7018-1 MR® stick electrodes. Designed specifically to address the common pain points of Shielded Metal Arc Welding (SMAW), this electrode (ED038107) offers an unparalleled combination of arc stability, puddle clarity, and mechanical integrity. The 3/32-inch diameter is perfect for thinner gauge materials or root passes in heavy plate, providing precise control and deep penetration where it counts.

Superior Arc Performance
The Excalibur 7018-1 MR is renowned for its "square burn-off." Unlike inferior rods that fingernail or burn unevenly, the Excalibur coating burns back evenly with the core wire, keeping the arc focused and the puddle visible. This visibility allows the welder to manipulate the weld pool with confidence, ensuring proper tie-in at the toes and preventing defects like undercut or lack of fusion. The soft, quiet arc generates very little spatter, keeping your workpiece clean and reducing grinding time.

Moisture Resistance and Code Compliance
For code-quality work, hydrogen control is non-negotiable. The Excalibur 7018-1 MR features a specialized coating that resists moisture pickup even in high-humidity environments. Rated as H4R, it guarantees less than 4ml of diffusible hydrogen per 100g of weld metal, drastically lowering the risk of hydrogen-induced cracking. Furthermore, the "-1" suffix indicates improved impact toughness at low temperatures, making these rods suitable for projects exposed to harsh cold environments, such as offshore structures or northern pipelines.

All-Position Versatility
Whether you are running vertical-up stringers or overhead fillets, the fast-freezing slag system of the Excalibur 7018-1 MR supports the puddle effectively without choking the arc. It operates exceptionally well on DCEP (Direct Current Electrode Positive) but is also compatible with AC power sources, providing flexibility depending on your machine setup. Packaged in a hermetically sealed 50 lb can, these electrodes are ready to perform right off the shelf.

Additional Information
Brand:Lincoln Electric
AWS Spec:E7018-1
Diameter:2.5mm (3/32")
Packaging Description:50lb can
Amp Range:75-110 A
Polarity:AC/DCEP
Position:All
Rod Type:Stick Electrode
Coating Type:Basic, Low Hydrogen
AWS Classification:E7018-1 H4R
Welding Position:All Position
Current Type:DCEP, AC
Moisture Resistance:MR (Moisture Resistant)

INCLUDED

  • 50 lb (22.7 kg) Easy Open Can of Excalibur® 7018-1 MR® Stick Electrodes

APPLICATIONS

  • Structural steel fabrication (buildings, bridges)
  • Pressure vessels and piping
  • Heavy equipment repair and maintenance
  • Shipbuilding and offshore structures
  • General fabrication of mild and low-alloy steels
  • Cold-weather applications requiring high impact toughness

FAQ

The '-1' suffix indicates that the electrode meets specific impact toughness requirements at lower temperatures. While standard E7018 is tested at -20°F (-29°C), E7018-1 is tested to provide good impact properties down to -50°F (-45°C), making it suitable for critical applications in colder environments.

MR stands for 'Moisture Resistant'. This proprietary coating formulation by Lincoln Electric significantly reduces the rate at which the electrode absorbs moisture from the air, helping to maintain low hydrogen levels and prevent weld cracking.

For the 3/32" (2.4mm) diameter Excalibur 7018-1 MR, the recommended amperage range is typically between 70 and 110 amps. The optimal setting will depend on the material thickness and welding position.

Yes, once the hermetically sealed can is opened, E7018 electrodes should be stored in a holding oven at 250°F-300°F (120°C-150°C) to maintain their low hydrogen status. If exposed to air for too long, they may need reconditioning.

Yes, the Excalibur 7018-1 MR is designed to operate on both DCEP (DC+) and AC current, providing flexibility for different welding power sources.

This product (ED038107) comes in a 50 lb (22.7 kg) Easy Open can.

Yes, E7018-1 is commonly used for the fill and cap passes on pipe welding applications, provided the root pass has been established (often with E6010 or TIG).