Chemical Composition Base Element Fe (Iron) Al (Aluminum) 0.02 % (maximum) C (Carbon) 0.08 to 0.15 % Cr (Chromium) 2 to 2.5 % Fe (Iron) 95 to 96.6 % (estimate) Mn (Manganese) 0.3 to 0.7 % Mo (Molybdenum) 0.9 to 1.2 % P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.035 % (maximum) Si (Silicon) 0.15 to 0.4 % 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 5.85e6 lbf/ft^2 (minimum) Ultimate Tensile Strength 1e7 to 1.32e7 lbf/ft^2 Elongation 20 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group Miscellaneous chromium molybdenum steel Country International Standards Body ISO (International) Description Alloyed seamless steel tubes with specified elevated temp properties for pressure purposes; normalizing and tempering, long. El. Designation 11CrMo9-10TN+TT Specification Type Standard Specification ISO 9329-2 Specification Year 1997 Specification Status Active Specification Status Notes active 1997 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 International Organization for Standardization (ISO)
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Chemical Composition

Base Element

Fe (Iron)