... forming operations, and for fusion welding. The steel material shall conform to chemical composition, tensile property, and hardness ... scope of the respective practices. The different mechanical test requirements for pipes, namely, transverse or longitudinal tension ... Grade P11, P22, P5, P9Grade P91Grade P92Tensile strength, min, (MPa)415585620Yield strength, min, (MPa)205415440Elongation, min, (%), L ...