Chemical Composition Base Element Fe (Iron) C (Carbon) 0.33 % (maximum) Fe (Iron) 98.3 to 99.2 % (estimate) Mn (Manganese) 0.85 to 1.2 % P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.035 % (maximum) Si (Silicon) 0.1 % (maximum) 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 255 MPa (minimum) Ultimate Tensile Strength 505 to 640 MPa Elongation 22 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family Carbon Steel Alloy Group Medium-carbon steel Alloy Sub-Group 1139/ 1140 Country USA Standards Body ASTM (USA) Description High-UTS C-Mn steel plates for welded pressure vessels, t<=15 mm>9.5 mm. Designation A455 Specification Type Standard Specification ASTM A455/A455M 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