Historical
DIN EN 10305-5:2003
Steel tubes for precision applications - Technical delivery conditions - Part 5: Welded and cold size square and rectangular tubes (Foreign Standard)
This part of EN 10xyz specifies the technical delivery conditions for seamless cold drawn steel tubes of circular cross section used in hydraulic and pneumatic power systems, manufactured from steels given in table 1. Tubes according to this part of EN 10xyz are characterized by having precisely defined tolerances on dimensions and a specified surface roughness.
Deutsches Institut für Normung [din]