... similar forming operations, and for fusion welding. The steel material shall conform to chemical composition, tensile property, and hardness ... of the respective practices. The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening ... ASTM A335 P11, P22, P5, P9, P91, P92Chemical Composition (%) for the main grade GradeCMnP, S, maxSiCrMoP110.05-0.150 ...