Chemical Composition Base Element Fe (Iron) C (Carbon) 0.025 % (maximum) Cr (Chromium) 24 to 26 % Cu (Copper) 1.2 to 2 % Fe (Iron) 56.8 to 64.3 % (estimate) Mn (Manganese) 0.8 % (maximum) Mo (Molybdenum) 3 to 4 % N (Nitrogen) 0.23 to 0.33 % Ni (Nickel) 6.5 to 8 % P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.002 % (maximum) Si (Silicon) 0.8 % (maximum) W (Tungsten) 0.8 to 1.2 % 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 585 MPa (minimum) Ultimate Tensile Strength 820 MPa (minimum) Elongation 25 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Duplex stainless steel Alloy Sub-Group Miscellaneous duplex stainless steel Country USA Standards Body ASTM (USA) Description Hot isostatically-pressed, powder metal, austenitic/ferritic stainless piping components for use in pressure systems. Alternate Name 25Cr7Ni3.7Mo Designation S39277 Specification Type Standard Specification ASTM A988/A988M-98 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 American Society for Testing and Materials (ASTM)
No warranty is given for the accuracy of these data Copyright © 2024 ASM International®

Chemical Composition

Base Element

Fe (Iron)