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61884000 - Bonarc 7018 Low Hydrogen Stick Electrode 4.0mm

Packaging: 4.5kg tube
$10.85/kg $30.47/4.5kg tube only $6.77/kgSave 38%

In stock

OVERVIEW

Smooth Running 7018 Rods for Professional Welders

If you are looking for a 7018 rod that doesn't fight you, the Bonarc 7018 4.0mm Steel Stick Electrode is built to make your hood time more productive and less frustrating. We know that with low-hydrogen rods, restriking can often be a headache due to the coating forming a crucible at the tip. Bonarc has formulated this electrode to offer very good striking and re-striking properties, allowing you to stop and start beads with minimal porosity at the tie-in and less time spent tapping the rod.

The arc itself is smooth and stable, giving you excellent puddle control whether you are running flat, horizontal, or overhead. The 4.0mm size puts down a significant amount of metal, making it great for filling bevels on heavy plate or structural columns. One of the standout features for the welder is the slag removal. There is nothing worse than hammering away at stubborn slag; this rod produces a slag covering that often lifts easily or curls up as it cools, revealing a clean, smooth bead with a fine ripple pattern that looks great even before you hit it with a wire wheel.

Designed for X-ray quality work, you can trust this rod on critical joints. It runs beautifully on DCEP, providing deep penetration and fusion, but also handles AC well if you are fighting arc blow in tight corners. The puddle wets out nicely at the toes, reducing the chance of undercut and helping you pass visual inspections with flying colors. Whether you are repairing heavy earth-moving equipment, welding pipe supports, or fabricating structural beams, the Bonarc 7018 gives you the control and quality you need to sign your name to the work.

Remember to keep these rods in your oven to protect that low-hydrogen coating. When treated right, they deliver consistent, crack-resistant welds that hold up under stress.

Additional Information
Brand:Bonarc
Diameter:4.0mm (5/32")
AWS Spec:E7018
Position:All
Polarity:AC/DCEP
Rod Type:Stick Electrode
AWS Classification:E7018
Coating Type:Low Hydrogen, Iron Powder
Material Composition:Carbon Steel
Welding Position:All Position
Current Type:AC, DCEP
Packaging Description:4.5kg tube
Amp Range:135-220 A

INCLUDED

  • Package of Bonarc 7018 4.0mm Stick Electrodes

APPLICATIONS

  • Structural steel fabrication (beams, columns, girders)
  • Pressure vessel and boiler construction
  • Heavy machinery and earthmoving equipment repair
  • Shipbuilding and offshore structures
  • Pipe welding (fill and cap passes)
  • General maintenance and repair of carbon steels
  • Railcar manufacturing

FAQ

This electrode is classified as AWS E7018.

The diameter is 4.0mm.

Yes, as a low-hydrogen electrode (E7018), it should be stored in a rod oven to prevent moisture absorption and ensure hydrogen-induced cracking resistance.

It is designed for excellent usability with Direct Current (DCEP) but can also be used with AC.

Yes, the Bonarc 7018 is noted for its excellent radiographic soundness and mechanical properties.

It is designed for good bead appearance and easy slag removal, reducing post-weld cleanup time.

Yes, E7018 is an all-position electrode, though 4.0mm is a larger diameter that requires skill for vertical-up welding compared to smaller diameters.

It is designed for welding carbon and low-alloy steels.