Welding Symbols on Drawings

"Weld symbols on drawings" was originally published in 1982 based on BS 499 (British Standards Institution 1980), ISO 2553 (International Standards Organisation 1979) and ANSI/AWS A2.4 (American Welding Society-1979) standards. These standards have been through numerous revisions over the last few years and the current standards are ISO 2553 1992, BSEN 22553 1995, and ANSI/AWS A2.4 1998. The American system of symbolization is currently used by approximately half of the world's industry. Most of the rest of the world use ISO. The British system was standardized in 1933 and the latest of five revisions was published in 1995 as BSEN 22553, which is identical to ISO 2553. For many years an ISO committee has been working on combining ISO and AWS to create a combined worldwide standard, but while discussions continue, this could take many years to achieve.

This contemporary book provides an up-to-date review on the application of ISO and AWS standards and a comparison between them. Many thousands of engineering drawings are currently in use, which have symbols and methods of representation from superseded standards. The current European and ISO standards and the American standard are similar, but the ANSI/AWS standard includes some additional symbols and also symbols for non-destructive testing. The book also explains the important differences between the symbols in the European and American standards, such as the arrows showing locations of welds. Chapters also cover more information on brazed or soldered joints and provide examples of the application of welding symbols.

E.N. Gregory and A. A. Armstrong both formerly worked at BSI, UK.