第二版取消并取代第一版。指定管的技术条件。将化学成分（表2）和机械性能（表3至表6）以及尺寸（表9）制成表格，范围为4 mm至160 mm（外径）和试验（表7和表8）。用于液压管道设备时，只能在退火或正火条件下使用。

This second edition cancels and replaces the first edition. Specifies the technical conditions for tubes. Tabulates the chemical composition (table 2) and mechanical properties (tables 3 to 6) as well as dimension (table 9) ranging from 4 mm up to and including 160 mm (outside diameter) and tests (tables 7 and 8). For use in hydraulic piping equipment they shall be used only in annealed or normalized condition.