Welded steel tubes for pressure purposes — Technical delivery conditions — Part 3: Electric resistance and induction welded unalloyed and alloyed steel tubes with specified low temperature properties
压力用焊接钢管——技术交付条件第3部分:具有规定低温性能的电阻和感应焊接非合金和合金钢管
Specifies the technical delivery conditions for electric resistance and induction welded tubes of circular cross-section having a wall thickness up to and including 16 mm. These pipes are intended for low temperature piping systems. For boilers and pressure vessels ISO 5730 is available. Partial revision of ISO 2604-3:1975.