Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 2: Unalloyed and alloyed steels with specified elevated temperature properties
压力用无缝钢管——技术交付条件第2部分:具有规定高温性能的非合金钢和合金钢
Specifies the technical delivery conditions for seamless tubes of circular cross-section with specified elevated temperature properties. These pipes are intended for elevated temperature piping systems. For pressure containing equipment ISO/R 831 and ISO 5730 are available. Replaces ISO 2604-2:1975.