ISO Weld Symbols

There are two welding symbols in common use – American Welding Society (AWS) which until 1992 was the general standard – then ISO presented ISO 2553 which has largely been adopted by the EU and affiliate countries. The Basic ISO Welding Symbol The basic weld symbol comprises of: The full reference line The dashed reference …

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Weld Preparations

Fillet welds, as a rule do not require any special end preparation, whereas with groove welds it is generally necessary to prepare the edges of the joints to be joined so as to provide space for the weld metal to be deposited during welding. The depth of preparation depends on the loading on the joint …

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Weld and Joint Types

One should keep in mind the distinction between ‘Joint’ and ‘Weld’ types, the former describes the configuration of the steel parts relative to each other, while the latter refers to the type of weld employed to hold the parts together. Joint Types There are 5 basic joint types, they include: Butt, Tee, Corner, Lap, and …

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Fillet Welds

Fillet Welds Fillet welds are usually applied when welding Tee joints where the plates are located at between 60 and 120 degrees to each other, 90 degrees being the most common. A Fillet weld is created when the weld forms a fillet between the faces of the adjoining parts, known as the fusion faces. The …

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Welding Processes

Electric arc welding as applied to structural steel fabrication is almost invariably carried out by one of the following processes: Manual Metal Arc Where the electrode is hand-held and manually fed into the weld pool. No shielding gas is used, but a flux is incorporated as a coating to the electrode. This is one of …

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