Lays down the conditions for tubes of circular cross-section. These tubes are intended for pressure purposes including the transport of fluids under pressure. Includes symbols and denominations, information to be supplied by the purchaser, manufacturing process, metallurgical properties, dimensions, masses and tolerances, appearance and soundness, inspection and testing, marking and protection.


ISO 9330-1:1990

Welded steel tubes for pressure purposes — Technical delivery conditions — Part 1: Unalloyed steel tubes with specified room temperature properties