AISI, STI/SPFA publish steel pipe design manual

January 15, 2008

The American Iron and Steel Institute (AISI), Washington, D.C., and the Steel Tank Institute/Steel Plate Fabricators Association (STI/SPFA), Lake Zurich, Ill., jointly published a steel pipe design manual titled Welded Steel Pipe Revised Edition 2007.

The manual focuses on the design of steel pipe up to 240 in. dia. under internal or external pressure. It offers analysis on handling, installation, ring deflection, performance limits, soil mechanics, external loads, coatings, couplings, and other topics. It also includes contributions from experts in the steel water pipe industry.

Targeted to consulting engineers and private/municipal water utility employees, the manual includes technical background and equations that address design issues for water transmission lines and distribution systems that employ welded steel pipe.

The manual is available for download, free of charge, at AISI's Web site ( and the STI/SPFA Web site (

AISI works to advance the case for steel in the marketplace and plays a role in the development and application of new steels and steelmaking technology. STI/SPFA provides a range of services to suppliers and fabricators of steel tanks, pressure vessels, specialty products, and piping for the petroleum, chemical, food, and water storage industries.