Chemical Composition Base Element Fe (Iron) Fe (Iron) 99.9 to 100 % (estimate) P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.035 % (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 7.1e6 lbf/ft^2 (minimum) Ultimate Tensile Strength 1.15e7 to 1.46e7 lbf/ft^2 Elongation 15 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family Carbon Steel Alloy Group Low-carbon steel and HSLA steel Alloy Sub-Group Casting specified by strength Country International Standards Body ISO (International) Description Heat-treated cast carbon steels for general engineering; chemical composition as agreed; YS and UTS may vary with thickness. Designation 340-550 Specification Type Standard Specification ISO 3755 Specification Year 1991 Specification Status Active Specification Status Notes active 1991 Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Available forms Casting Similar Alloys Click here to find similar alloys Links Organizations International Organization for Standardization (ISO)
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Chemical Composition