Form: This specification covers a corrosion and heat-resistant steel in the form of investment castings. Application: These castings have been used typically for parts requiring oxidation resistance up to 1600 ??(871 ?? but usage is not limited to such applications. At elevated temperatures@ strength of this material is slightly higher than@ and oxidation resistance is similar to@ that of UNS J92500 (CF-3) and J92600 (CF-8) type steels.