Chemical Composition Base Element Fe (Iron) C (Carbon) 0.2 % (maximum) Cr (Chromium) 23 to 27 % Fe (Iron) 70 to 77 % (estimate) Mn (Manganese) 1.5 % (maximum) N (Nitrogen) 0.25 % (maximum) P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 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 275 MPa (minimum) Ultimate Tensile Strength 510 MPa (minimum) Elongation 20 % strain (minimum) Brinell Hardness 201 (minimum) Notes on Mechanical Properties 50 mm gauge Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Ferritic stainless steel Alloy Sub-Group 446 Country South Korea Standards Body KS (South Korea) Description Heat-resisting steel plates and sheets, ferritic system Designation STR 446 Specification Type Standard Specification KS D 3732 Specification Year 2002 Specification Status Active Specification Status Notes Active Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Available forms Wrought Similar Alloys Click here to find similar alloys
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Chemical Composition