Heavy Wall Seamless Bends for Demanding Projects Available to Purchase

Increasing request of oil & gas resources has brought to the exploitation of fields technically complex and risky due to severe operating conditions, leading to more stringent requirements for linepipes and accessories. A development program was carried out to enlarge the dimensional range of heavy wall (HW) hot induction bends able to meet more stringent requirements. A new steel design based on low-C content was used to improve both toughness and control of maximum hardness of off-line quenched and tempered HW bends for demanding applications. The new steel, with carbon equivalent lower than 0.42%, was suitable to produce X65 bends with thickness up to 52 mm, very good toughness, and maximum hardness below 250 HV₁₀.