Chemical Composition Base Element Fe (Iron) B (Boron) 0.0007 % (maximum) C (Carbon) 0.08 to 0.12 % Cr (Chromium) 2.8 to 3.2 % Fe (Iron) 92.6 to 94.5 % (estimate) Mn (Manganese) 0.25 to 0.45 % Mo (Molybdenum) 0.65 to 0.85 % Ni (Nickel) 0.25 % (maximum) P (Phosphorus) 0.01 % (maximum) S (Sulfur) 0.01 % (maximum) Si (Silicon) 0.15 to 0.4 % Ta (Tantalum) 0.07 to 0.13 % V (Vanadium) 0.2 to 0.3 % W (Tungsten) 1.35 to 1.65 % 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 585 MPa (minimum) Ultimate Tensile Strength 725 to 930 MPa Elongation 16 % 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 Cr-W-Mo-V, with Ta, alloy steel plates for welded boilers and pressure vessels for elevated temp service; killed steel. Designation Grade 315T Specification Type Standard Specification ASTM A1041/A1041M Specification Year 2004 Specification Status Active Specification Status Notes active 2004 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)