AWS A 5.1 electrode specification for SMAW

Specification for Carbon Steel Electrodes for Shielded Metal Arc Welding (SMAW) AWS A5.1 – A5.5

AWS electrode specification for SMAW Welding electrodes (welding rod) also called Shielded Metal Arc Welding (SMAW) welding rod which 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[…]

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essential variables and nonessential variables

Essential Variables, nonessential variables and Supplementary Essential Variables in WPS

What is essential variable? Many variables and parameters affect welding quality such as such as such as joint details, base metals, filler metals, positions, preheat, PWHT. These parameters are known as WELDING VARIABLES (QG-105 & QW-250). All these variables are mentioned in WPS – Welding Procedure Specification so a welder or welding operator can develop good quality welding. In production, we have limitations, welding results can not be examined thoroughly. Some welding defects, can be seen visually by the Visual Welding inspector such as CSWIP 3.0 Welding Inspector. However strength, ductility and corrosion resistance can only be checked using destructive[…]

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