ED033179 - Lincoln Excalibur 7018-1 MR 2.5mm Low Hydrogen Stick Electrode

Name: Lincoln Excalibur 7018-1 MR 2.5mm Low Hydrogen Stick Electrode
SKU: ED033179
Availability: BackOrder

Packaging: 8 lb per can

$14.66/lb

Package Price:

$117.28/8 lb per can

Usually ships within 3-5 business days

SKU: ED033179 Categories: Steel Electrodes, Welding Wires and Electrodes

OVERVIEW

Premium Low Hydrogen Electrodes for Critical Infrastructure

The Lincoln Electric Excalibur 7018-1 MR is a top-tier mild steel stick electrode designed for the most demanding industrial applications. Engineered with a specialized moisture-resistant (MR) coating, this electrode significantly reduces the absorption of moisture, minimizing the risk of hydrogen-induced cracking in the weld zone. This makes it an essential consumable for projects requiring strict adherence to safety and quality codes, such as pressure vessel fabrication and high-stress structural steel erection.

One of the standout features of the Excalibur line is the Q2 Lot® certification. This ensures that every batch is tested and verified to meet specific chemical and mechanical property requirements, providing industrial buyers with the documentation and peace of mind needed for audited projects. Specifically formulated to meet API 751 requirements, this electrode is a preferred choice for the petrochemical and power generation sectors where consistency is non-negotiable.

At Josef Gas, we understand that supply chain reliability is key. The Excalibur 7018-1 MR offers excellent shelf life stability due to its advanced coating technology. Whether you are supplying a large-scale construction site or a specialized fabrication shop, these electrodes deliver the performance characteristics that professional welders demand: smooth arc starts, minimal spatter, and easy slag release. The 2.5mm diameter is particularly versatile, allowing for precision welding in tighter joints while maintaining high deposition efficiency.

Key Industrial Benefits

Code Compliance: Meets AWS E7018-1 H4R and API 751 standards.
Moisture Resistance: MR coating technology protects against humidity, preserving rod integrity.
Lot Traceability: Q2 Lot® program guarantees consistent chemistry across batches.
Versatility: Suitable for a wide range of mild steel applications including cold-weather structural work.

Additional Information
Packaging Description:8 lb per can
AWS Spec :E7018-1
Diameter:2.5mm
Brand:Lincoln
Polarity:DC+ / AC
Position:ALL
Amp Range:100-160amp
Rod Type:Stick Electrode
Coating Type:Basic, Low Hydrogen
AWS Classification:E7018-1 H4R
Welding Position:All position
Current Type:AC, DCEP
Tensile Strength:70,000 psi minimum
Applications:Piping, Pressure Vessels, Structural Fabrication

INCLUDED

Lincoln Excalibur 7018-1 MR Stick Electrodes (2.5mm x 12")
Moisture Resistant Packaging

APPLICATIONS

Structural Steel Fabrication
Pressure Vessel and Tank Manufacturing
Power Generation Plant Construction
Petrochemical Piping (API 751 compliant)
Heavy Equipment Repair
Bridge and Infrastructure Construction
General Fabrication requiring Low Hydrogen welds

FAQ

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

The Lincoln Excalibur 7018-1 MR is designed to operate on DCEP (Direct Current Electrode Positive) or AC (Alternating Current). DCEP is generally preferred for smoother arc performance.

Yes, the Excalibur 7018-1 MR is specifically engineered to produce radiographic (x-ray) quality welds, making it ideal for critical code work.

This product is classified as AWS E7018-1 H4R. The '-1' indicates improved impact properties at lower temperatures, and 'H4R' indicates very low diffusible hydrogen levels.

Absolutely. The 2.5mm diameter is excellent for root and hot passes on pipe, and the rod is widely used in high-pressure piping applications.

Yes, it is specifically formulated to meet the chemical composition requirements of API 751 for petrochemical applications.

The 2.5mm diameter is approximately equivalent to 3/32 inch.

While the MR coating resists moisture, for critical code work (like AWS D1.1), low hydrogen rods should be stored in a holding oven after opening the hermetically sealed container to maintain their low hydrogen status.