CEN PREN 10255 PDF

This document specifies the requirements for circular non-alloy steel tubes suitable for welding and threading and provides a number of options for the finish of tube ends and coatings. This document covers two grades of steel tubes of specified outside diameter 10,2 mm to 323,9 mm (thread size 1/8 to 12) in two series, medium and heavy, and three types of designated thicknesses.

NOTE Tubes manufactured according to this document can be used for the conveyance of fluids as well as for other applications.

NOTE Other joining methods include, but are not limited to, grooved fittings and compression ends (for which fittings are defined in EN 10344).