Chemical Composition Base Element Fe (Iron) C (Carbon) 0.21 % (maximum) Fe (Iron) 99.1 to 99.7 % (estimate) Mn (Manganese) 0.3 to 0.6 % P (Phosphorus) 0.045 % (maximum) S (Sulfur) 0.06 % (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 3.55e6 lbf/ft^2 (minimum) Ultimate Tensile Strength 6.47e6 lbf/ft^2 (minimum) Other Information Material Class Ferrous Alloy Alloy Family Carbon Steel Alloy Group Low-carbon steel and HSLA steel Alloy Sub-Group 1020 Country India Standards Body BIS (India) Description Seamless, electric welded, or butt welded line pipes Alternate Name formerly YSt 18 Designation YSt 170 Class 1 Specification Type Standard Specification IS 1978 Specification Year 2002 Specification Status Active Specification Status Notes active 2002 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 Bureau of Indian Standards (BIS)
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Chemical Composition