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ED033312 - Lincoln Excalibur 7018-1 MR 2.5mm Stick Electrode (50lb Can)

Packaging: 4kg tube
$22.16/kg $44.32/4kg tube only $11.08/kgSave 50%

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OVERVIEW

The Welder's Choice for Smooth, Strong Stick Welds

When your reputation depends on the quality of your welds, reach for Lincoln Electric Excalibur 7018-1 MR. Known among professional welders as one of the smoothest running stick electrodes on the market, the Excalibur 7018-1 takes the frustration out of low-hydrogen welding. Whether you are welding structural beams, repairing heavy equipment, or working on pipe, this 2.5mm (3/32") rod gives you the control you need to lay down perfect beads in any position—flat, horizontal, vertical, or overhead.

Why choose Excalibur? It starts with the arc. Unlike cheaper rods that sputter and stick, the Excalibur 7018-1 MR strikes easily and maintains a steady, quiet arc that lets you see the puddle clearly. The "MR" stands for Moisture Resistant, which means the coating doesn't soak up humidity from the air as quickly as standard rods. This keeps your welds free from porosity and hydrogen cracking, ensuring you pass X-ray and bend tests with flying colors. Plus, the slag is incredibly easy to remove—often peeling up by itself as it cools—so you spend less time chipping and brushing and more time welding.

Built for Tough Conditions: The "-1" in the name isn't just a number; it means this rod is formulated to stay tough even in freezing cold conditions (down to -50°F). This makes it the go-to rod for outdoor construction in harsh winters or critical projects where failure isn't an option. It runs beautifully on your DC welder and handles AC power sources better than most 7018s, giving you flexibility regardless of your machine setup.

This 50 lb can is perfect for shop use or big jobsites. The hermetically sealed can keeps the rods oven-fresh until you crack the seal. If you are looking for a rod that makes you look good and holds up to the strictest codes, Lincoln Excalibur 7018-1 MR is the industry standard for a reason.

Additional Information
Brand:Lincoln Electric
AWS Spec:E7018-1
Diameter:2.5mm (3/32")
Polarity:AC/DC
Position:All
Packaging Description:50lb-can
Rod Type:Stick Electrode (SMAW)
Coating Type:Low Hydrogen Iron Powder, Moisture Resistant (MR)
Tensile Strength:70,000 psi min
Yield Strength:58,000 psi min
Diffusible Hydrogen:H4R (<4.0 mL/100g)
Impact Toughness:27 J at -45°C
Current Type:DCEP, AC
Amp Range:75-110 A

INCLUDED

  • 50 lb Can of Excalibur 7018-1 MR Stick Electrodes (2.5mm)
  • Instruction Sheet

APPLICATIONS

  • Structural Steel Fabrication (Buildings, Bridges)
  • Pressure Vessels and Piping
  • Heavy Equipment Repair and Maintenance
  • Offshore Drilling Rigs and Platforms
  • Power Generation Plants
  • Petrochemical Industry
  • General Fabrication requiring Low Hydrogen

FAQ

MR stands for 'Moisture Resistant'. This designation indicates that the electrode's coating is formulated to resist moisture absorption from the air, which helps prevent hydrogen-induced cracking and porosity in the weld metal.

The primary difference is impact toughness. E7018-1 electrodes are tested to provide specific impact properties (Charpy V-Notch) at lower temperatures (typically -45°C) compared to standard E7018, making them suitable for critical applications requiring high ductility in cold environments.

Yes, once the hermetically sealed can is opened, low hydrogen electrodes like the 7018-1 MR should be stored in a rod oven at 250°F-300°F to maintain their low hydrogen status. If exposed to air for too long, they may need reconditioning.

Lincoln Excalibur 7018-1 MR runs best on DCEP (Direct Current Electrode Positive), also known as DC+. It can also be used with AC (Alternating Current) if your machine does not have DC capability.

Yes, the 2.5mm (3/32") diameter is excellent for all-position welding, including vertical-up and overhead, due to its manageable puddle size and fast-freezing slag characteristics.

As an E7018-1 classification, it has a minimum tensile strength of 70,000 psi (490 MPa), though actual test results often exceed this minimum.

7018 electrodes are 'low hydrogen' and generally require cleaner base metal than cellulosic rods like 6010. For best results and to prevent porosity, you should remove heavy rust, oil, and paint from the weld area before welding.

This SKU typically corresponds to a 50 lb (22.7 kg) Easy Open Can, which is hermetically sealed to protect the electrodes from moisture during shipping and storage.