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AWS A5.30/A5.30M-2022
Specification for Consumable Inserts
Five classes (cross-sectional designs) of consumable inserts of various chemical compositions are described. Each class is subdivided into two or three styles based on the shape of the insert. The chemical composition of the consumable insert is specified herein, or by the composition limits shown in another AWS A5 solid wire specification. Packaging and marking requirements are specified. Application guidelines are provided in an informational annex.
American Welding Society [aws]