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Structural steel welding - Welding of steel structures AS/NZS 1554.2: Structural steel welding - Stud welding (steel studs to steel) AS/NZS 1554.3: Structural steel welding - Welding of reinforcing steel AS/NZS 1554.4: Structural steel welding - Welding of high strength quenched and tempered steels AS/NZS 1554.5
To not even mention 7018 is odd especially when lesser known/used electrodes are mentioned. 6011 and 7018 are among the most commonly used electrodues. Pipe welds are typically done with a 6010 root pass and 7018 cap. Boiler tube welds are now commonly tig'ed for the root past and finished with the appropriate stick electrode (7018, 8018, or 9018).
Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.
A specialized process called shot welding, can be used to spot weld stainless steel. [62] Seam welding also relies on two electrodes to apply pressure and current to join metal sheets. However, instead of pointed electrodes, wheel-shaped electrodes roll along and often feed the workpiece, making it possible to make long continuous welds.
In welding, equivalent carbon content (C.E) is used to understand how the different alloying elements affect hardness of the steel being welded. This is then directly related to hydrogen-induced cold cracking, which is the most common weld defect for steel, thus it is most commonly used to determine weldability.
SMAW is often used to weld carbon steel, low and high alloy steel, stainless steel, cast iron, and ductile iron. While less popular for non-ferrous materials, it can be used on nickel and copper and their alloys and, in rare cases, on aluminium. The thickness of the material being welded is bounded on the low end primarily by the skill of the ...
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