Range attributes C (Carbon) 0.35 to 0.6 % Elongation 12 % strain (minimum) Fe (Iron) 98.1 to 99.7 % (estimate) Mn (Manganese) 1.2 % (maximum) P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.05 % (maximum) Ultimate Tensile Strength 690 MPa (minimum) Yield Strength 485 MPa (minimum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Carbon Steel Alloy Group Medium-carbon steel Alloy Sub-Group 1043 Available forms Wrought Base Element Fe (Iron) Country USA Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Active Specification Type Standard Standards Body ASTM (USA) Short text attributes Composition Note_old 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. Country* USA Description_old Heat-treated carbon steel joint bars for general use in standard railroad track Designation A49 Specification ASTM A49 Specification Status Notes active 2001 Long text attributes 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. Description Heat-treated carbon steel joint bars for general use in standard railroad track Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 2001 Further Information Organizations American Society for Testing and Materials (ASTM)
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Range attributes

C (Carbon)

0.35 to 0.6