FineXcell® is Vallourec's most advanced series of high-strength fine-grain steels, providing the perfect combination of properties for use in the most demanding yet cost-effective steel structures. Meticulously controlled chemical compositions and advanced heat treatment methods plus the comprehensive know-how and expertise of Vallourec are the prerequisites for achieving a homogeneous fine-grained microstructure which, in turn, permits the combination of three important yet difficult to reconcile properties: high strength, good impact toughness and excellent weldability.
FineXcell® grades can achieve yield strength levels up to an impressive 1000 MPa. Innovative crane construction, weight-optimized load-bearing structures and other high-tech steel components under particularly high stresses are therefore the ideal application areas for FineXcell®.
1) Other elements: W = 0.40 % to 1.50 %2) If Cu > 0.30 %, Ni has to be at least half of Cu.
1) QT: quenched and tempered.
2) Valid for the smallest wall thickness range given in the respective material data sheets.