Steel alloy for the aerospace industry T550

Components featuring elevated high-temperature strength for use in thermal engines and power plants, such as turbine blades, turbine discs, screws, bolts, pins and shafts. PROPERTY FEATURES Creep resisting steel, hardened and tempered. Usual upper temperature limit for continuous operating at 580°C. Material Numbers DIN - EN - Others 1.4922, 1.4923, 1.4926, 1.4934 - X20CrMoV12-1, X22CrMoV12-1, X21CrMoV12-1 - STN: 17 134 CHEMICAL COMPOSITION C - Si - Mn - Cr - Mo - Ni - V 0.22 - 0.25 - 0.70 - 11.40 - 0.95 - 0.70 - 0.30