Böhler (or Boehler) T504 (UNS S42200) is a creep resisting steel, hardened and tempered. Usual upper temperature limit for continuous operating is 580 C (1076 F). This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: SA-751. Producer or source: Böhler Edelstahl GmbH & Company KG.