H-46

H-46 is a martensitic, 12% chromium steel designed primarily for high strength applications in the 900/1200°F (482/649°C) temperature range. The creep resisting properties of this alloy compare favorably with those of several of the lower grades of austenitic, heat resisting steels in the 1000/1200°F (538/649°C) temperature range. H-46 exhibits low thermal expansion properties making it a consideration in structural applications where standard austenitic stainless steels have been inadequate due to excessive expansion when heated.