Owner V & M France

Inventors Vailant, Jean-Claude; Arbab, Alireza; Lefebvre, Bruno

Agent Spruson & Ferguson

Pub. Number AU-B-2002302671

PCT Number PCT/FR02/01151

PCT Pub. Number WO2002/081766

Priority 01/04551 04.04.01 FR

Filing date 3 April 2002

Wipo publication date 21 October 2002

Acceptance publication date 3 January 2008

C21D 9/08 (2006.01) Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles - for tubular bodies or pipes

C22C 38/00 (2006.01) Ferrous alloys, e.g. steel alloys

C22C 38/44 (2006.01) Ferrous alloys, e.g. steel alloys - with molybdenum or tungsten

C22C 38/46 (2006.01) Ferrous alloys, e.g. steel alloys - with vanadium

C22C 38/48 (2006.01) Ferrous alloys, e.g. steel alloys - with niobium or tantalum

C22C 38/52 (2006.01) Ferrous alloys, e.g. steel alloys - with cobalt

C22C 38/54 (2006.01) Ferrous alloys, e.g. steel alloys - with boron

C22C 38/58 (2006.01) Ferrous alloys, e.g. steel alloys - with more than 1.5% by weight of manganese

C21D 8/10 (2006.01) Modifying the physical properties by deformation combined with, or followed by, heat treatment - during manufacturing of tubular bodies