Method for the manufacture of pipe from strip steel.

摘要

Use of a low carbon continuously cast steel which has an aluminium content less than 0.022 % by weight in the manufacture of pipes is advantageous when making pipes having walls of at least two layers and a diameter typically smaller than 16 mm. The method of manufacture involves successively hot rolling, cold rolling and coppering to produce a strip steel which is then rolled into a pipe having at least two layers. The pipe is then annealed so that the copper seals the two layers together. Such pipes are particularly suitable for hydraulic applications, such as brake lines in cars.