Elga Maxeta 11 E7024 High-Recovery Rutile Electrode

High-productivity rutile electrode for heavy-section fillet welding

The Elga Maxeta 11 is a rutile-coated iron-powder electrode with 190% metal recovery, classified AWS A5.1 E7024 and EN ISO 2560-A E 42 0 RR 73. Elga designed it for high-productivity welding of heavier-section mild steel, and describes it as particularly suitable for high-speed fillet welding in the downhand and horizontal-vertical positions as well as downhand butt welds.

The arc is smooth and stable, the bead surface finely rippled, the slag self-detaching and spatter minimal. Elga also states that the electrode produces mitre-profile fillets with a smooth transition to the base material, that it works equally well on primer-treated plate, and that it was specially designed for very low fume emission.

Technical specifications

When a 190% recovery electrode pays off

Recovery describes how much weld metal is deposited per unit mass of core wire consumed; the iron powder in the coating is what lifts it well above 100%. On the data sheet this shows up as 0.72 to 0.73 kg of weld metal per kilogram of electrodes and as an arc-time deposition rate that climbs from 2.5 kg per hour at 3.2 mm to 7.7 kg per hour at 6.0 mm. A single 450 mm electrode in 6.0 mm burns off in about 71 seconds, so long fillets are made with fewer stops than with a conventional rutile type.

That productivity is realised on stable, accessible joints: long horizontal fillets, ship hull panels, heavy plate frames and similar shop work where the welder or a gravity-fed rig can stay in the downhand or horizontal-vertical position. For vertical-up or overhead work, a conventional electrode of a different class is the right tool; E7024 is not intended for those positions.

Handling and selection notes

The data sheet calls for redrying at 90 °C for two hours, a low temperature compared with basic electrodes, because the rutile coating takes up little moisture. Match the diameter to plate thickness and joint leg length, and keep current within the range printed for each size: running a large electrode at the bottom of its range gives a cold, convex bead, while the top of the range softens the coating and loses the benefit of self-detaching slag.

Maxeta 11 sits beside the other rutile grades in the same product family. Elga also makes Maxeta 10, another E7024 type, and the attached data sheet gives the exact figures for this one.

Documents and quotation

The Elga Maxeta 11 product data sheet is attached to this page for download. Related consumables are listed in our Welding Electrodes category.

For a quotation, send the diameter or size, pack type, quantity and any certificate or approval requirement.