Patent Number: 7,610,796

Title: Method for adjusting specific quality characteristics and properties of pipes by means of a pressure test

Abstract: The invention relates to a method for adjusting specific quality characteristics and/or properties of pipes (1) by means of a pressure test, especially for steel pipes of pipe conduits for combustible media. According to said method, in addition to the water volume required for the pressure test according to DIN EN 10208 part 2, an additional water volume (12) is filled into every single pipe (1) with the proviso that the pipe material is slightly subjected to plastic stress.

Inventors: Thomalla; Siegfried (Hilchenbach, DE), Schmeck; Franz-Josef (Freudenberg, DE), de la Camp; Hans-Joachim (Grobenzell, DE)

Assignee: Eisen- und Metallwerke Ferndorf GmbH

International Classification: G01M 3/04 (20060101)

Expiration Date: 1/03/02017