Range attributes C (Carbon) 0.04 to 1.1 % Cr (Chromium) 18 to 20 % Fe (Iron) 65.1 to 74 % (estimate) Mn (Manganese) 2 % (maximum) Ni (Nickel) 8 to 11 % P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.75 % (maximum) Ultimate Tensile Strength 517 MPa Yield Strength 207 MPa Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Austenitic stainless steel Alloy Sub-Group 304H Available forms Wrought Base Element Fe (Iron) Country Mexico Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Active Specification Type Standard Standards Body NMX (Mexico) Short text attributes Composition Note_old 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. Country* Mexico Description_old Seamless pipe for high-temp central station service Designation TP304H Specification NMX-B-186-SCFI Specification Status Notes active Long text attributes 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. Description Seamless pipe for high-temp central station service Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 1994 Further Information Organizations Direccion General de Normas (DGN) (General Directorate of Standards) (NMX/NOM/DGN)
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Range attributes

C (Carbon)

0.04 to 1.1