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An electrode is a metal wire that is coated. It is made out of materials with a similar composition to the metal being welded. There are a variety of factors that go into choosing the right electrode for each project. SMAW or stick electrodes are consumable, meaning they become part of the weld, while TIG electrodes are non-consumable as they do not melt and become part of the weld, requiring the use of a welding rod.
The MIG welding electrode is a continuously fed wire referred to as wire. Electrode selection is critical to ease of cleanup, weld strength, bead quality and minimizing any spatter. Electrodes need to be stored in a moisture-free environment and carefully removed from any package When molten metal is exposed to air, it absorbs oxygen and nitrogen, and becomes brittle or is otherwise adversely affected.
A slag cover is needed to protect molten or solidifying weld metal from the atmosphere. This cover can be obtained from the electrode coating. The composition of the welding electrode coating determines its usability, as well as the composition of the deposited weld metal and the electrode specification. The formulation of welding electrode coatings is based on well-established principles of metallurgy, chemistry, and physics.
The coating protects the metal from damage, stabilizes the arc, and improves the weld in other ways, which include: Smooth weld metal surface with even edges, Minimum spatter adjacent to the weld, A stable welding arc, Penetration control, tough coating, Easier slag removal, the Improved deposition rate
The metal-arc electrodes may be grouped and classified as bare or thinly coated electrodes, and shielded arc or heavy coated electrodes. The covered electrode is the most popular type of filler metal used in arc welding.
The composition of the electrode covering determines the usability of the electrode, the composition of the deposited weld metal, and the specification of the electrode. The type of electrode used depends on the specific properties required in the weld deposited. These include corrosion resistance, ductility, high tensile strength, the type of base metal to be welded, the position of the weld (flat, horizontal, vertical, or overhead); and the type of current and polarity required.
This type of electrode is often employed for general welding applications that do not call for any special features. They also are used on farm equipment, piping, wrought iron, and road equipment. According to Metal Web News, 6011 electrodes create welds with a minimum tensile strength of around 60,000 pounds per square inch (psi). Welders can hold this type of electrode in any position to create a proper weld. 6010 electrodes are designed for use under direct currents (DC). According to Welding Tips and Tricks, 6010 electrodes feature a high cellulose sodium outer coating.
6013 electrodes are relatively easy to use. They create a softer arc that is ideal for use on sheet metal. This type of electrode is often employed for general repair on thinner materials. 6013 electrode welds offer around a 60,000 psi minimum tensile strength, according to Metal Web News. These electrodes can be held in any position and are used under either direct or alternating currents (AC). 6013 electrodes feature a high titania potassium outer coating, according to Welding Tips and Tricks.
The 7018 electrodes are often referred to as a “low hydrogen electrode” that features a low moisture coating, which reduces the level of hydrogen that seeps into a weld. This type of electrode produces high-quality, crack-resistant weld points with medium penetration. These electrodes must remain dry before use. The minimum weld tensile strength produced by this type of electrode is around 70,000 psi, according to Metal Web News. 7018 electrodes also can be held in any position while welding. 7018 electrodes are engineered to operate under either direct currents or alternating currents. According to Welding Tips and Tricks, this type of electrode features an iron powder, low hydrogen outer coating
At tikweld welding supplies, we are obsessed with providing the best welding electrode for your welding. We offer Consumable Electrodes (Bare Electrodes, Covered Electrodes, Light Coated Electrodes, Medium Coated Electrodes, Heavily Coated Electrode, and Flux Electrodes) and Non-Consumable Electrodes. In order to enhance productivity in your welding from the best vendors like Lincoln, miller, etc. This means you can count on us 27/7.
we are proud of our reputation, in providing reliable and trusted WELDING SUPPLY SOLUTIONS, We have become Nigeria’s single-source solution provider to the welding industry and continue to dedicate ourselves in fulfilling our vision “TO PUT QUALITY EQUIPMENT IN THE HANDS OF WELDERS, TO HELP THEM IN ALL INDUSTRIES TO BECOME MORE EFFICIENT, PRODUCTIVE & PROFITABLE” We act with honesty and nurture strong relationships from large public companies to private customers ensuring we have an understanding of every client’s needs and always aim to exceed their expectations.
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