ISO 6537:1982

Covers non-ferrous metallic pneumatic cylinder tubes. Defines the mechanical properties, dimensional tolerances, surface finishes, and technical delivery conditions of the following tubes and bores for pneumatic fluid power cylinders: round non-ferrous metallic tubes, seamless or welded type, in the as-drawn stress-relieved or fully heat-treated condition; bores, specially finished, with or without metal removal. Annex A specifies the dimensions and tolerances on inside diameters, annex B provides a recommended method of ordering.