Range attributes C (Carbon) 0.16 to 0.25 % Cr (Chromium) 12 to 14 % Fe (Iron) 82.6 to 87.8 % (estimate) Mn (Manganese) 1 % (maximum) Ni (Nickel) 1 % (maximum) P (Phosphorus) 0.07 % (maximum) S (Sulfur) 0.06 % (maximum) Si (Silicon) 1 % (maximum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Tool Steel Alloy Group Cold-work tool steel Alloy Sub-Group Miscellaneous cold-work steel Available forms Wrought Base Element Fe (Iron) Country Italy Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Obsolete Specification Type Standard Standards Body UNI (Italy) 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 Country* Italy Designation X21Cr13KU Specification UNI 2955/3 Specification Status Notes withdrawn Long text attributes Composition Note Fe is listed as a Base element for this material, but its % value is not listed in the specification.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. Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 1982 Further Information Organizations Ente Nazionale Italiano di Unificazione (UNI) (Italian National Standardization Office)
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Range attributes

C (Carbon)

0.16 to 0.25