Chrome molybdenum grades P11, P22, P91 and P92 are used in the power industry. Chromium molybdenum grades P5 and P9 are used in petrochemical refining processes. Chrome molybdenum forged fittings and flanges are available in grades F5, F9, F11, F22, F91, F92. Chrome-molybdenum alloy butt welded pipe fittings are available in WP5, WP9, WP11, WP22, WP91, WP92 grades. F11 and F22 materials comply with NACE-MRO 175.