Chemical Composition Base Element Fe (Iron) C (Carbon) 2.2 to 2.7 % Cr (Chromium) 0.2 % (maximum) Fe (Iron) 61.5 to 67.8 % (estimate) Mg (Magnesium) 3.75 to 4.5 % Mn (Manganese) 3.75 to 4.5 % Ni (Nickel) 21 to 24 % P (Phosphorus) 0.08 % (maximum) Si (Silicon) 1.5 to 2.5 % 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 29700 psi (minimum) Ultimate Tensile Strength 65300 psi (minimum) Elongation 30 % strain (minimum) Brinell Hardness 121 to 171 Other Information Material Class Ferrous Alloy Alloy Family Cast Iron and Iron Alloys Alloy Group Cast Iron Alloy Sub-Group Ductile cast iron Country USA Standards Body ASTM (USA) Description Austenitic ductile iron for pressure-containing parts for low-temp service. Designation Class 3 Specification Type Standard Specification ASTM A571/A571M Specification Year 2001 Specification Status Active Specification Status Notes active 2001 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 American Society for Testing and Materials (ASTM)
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Chemical Composition