Chemical Composition Base Element Fe (Iron) C (Carbon) 0.1 to 0.15 % Ca (Calcium) 0.0005 to 0.015 % Cr (Chromium) 2.7 to 3.3 % Cu (Copper) 0.25 % (maximum) Fe (Iron) 93.8 to 95.8 % (estimate) Mn (Manganese) 0.3 to 0.6 % Mo (Molybdenum) 0.9 to 1.1 % Nb (Niobium) 0.015 to 0.07 % Ni (Nickel) 0.25 % (maximum) P (Phosphorus) 0.02 % (maximum) S (Sulfur) 0.01 % (maximum) Si (Silicon) 0.1 % (maximum) Ti (Titanium) 0.015 % (maximum) V (Vanadium) 0.2 to 0.3 % 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 415 MPa (minimum) Ultimate Tensile Strength 585 to 760 MPa Elongation 18 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group Chromium molybdenum vanadium steel Country USA Standards Body ASTM (USA) Description Ferritic steel forgings for boilers, pressure vessels, high-temp parts and associated equipment. Designation Grade F3VCb 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)