A694 F42 forged/forging rings A694 F45 forged/forging rings A694 F52 forged/forging rings A694 F55 forged/forging rings A694 F60 forged/forging rings A694 F65forged/forging rings A694 F70 F23 forged/forging rings Ferritic alloy steel forgings for high-pressure and high-temperature parts, such as boilers and pressure vessels. A182 / A336 F1, F5, F9, F91, F92 A182 / A336 F11, F12, F22, F23
