This standard applies to straight welded tubes with plain ends of unalloyed and austenitic steels for tubular heat exchangers mainly used in process plants.
DIN 28181:1985 history
2007DIN 28181:2007-09 Welded steel tubes for tubular heat exchangers - Dimensions and materials
2007DIN 28181:2007 Welded steel tubes for tubular heat exchangers - Dimensions and materials
1985DIN 28181:1985 Welded steel tubes for tubular heat exchangers; dimensions, dimensional deviations and materials