Chemical Composition Base Element Fe (Iron) C (Carbon) 0.15 % (maximum) Cr (Chromium) 8 to 10 % Fe (Iron) 87.1 to 90.3 % (estimate) Mn (Manganese) 0.3 to 0.6 % Mo (Molybdenum) 0.9 to 1.1 % P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.025 % (maximum) Si (Silicon) 0.5 to 1 % Composition Note Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one. Mechanical Properties Yield Strength 380 10^7 dyne/cm^2 (minimum) Ultimate Tensile Strength 585 to 760 10^7 dyne/cm^2 Elongation 20 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Ferritic stainless steel Alloy Sub-Group Miscellaneous ferritic steel Country USA Standards Body ASTM (USA) Description Ferritic steel forgings for boilers, pressure vessels, high-temp parts and associated equipment. Alternate Name formerly Class F9 Designation Grade F9 Specification Type Standard Specification ASTM A336/A336M Specification Year 2003 Specification Status Active Specification Status Notes active 2003 Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Available forms Wrought Similar Alloys Click here to find similar alloys Links Organizations American Society for Testing and Materials (ASTM)
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Chemical Composition

Base Element

Fe (Iron)