Range attributes C (Carbon) 0.85 to 0.95 % Cr (Chromium) 0.5 % (maximum) Fe (Iron) 95.6 to 97.8 % (estimate) Mn (Manganese) 1.4 to 1.8 % Mo (Molybdenum) 0.3 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.5 % (maximum) V (Vanadium) 0.3 % (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 Oil-hardening cold-work steel Available forms Wrought Base Element Fe (Iron) Country USA 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 SP Manual (USA) 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* USA Description_old Multiple forms, conditions, and finishes Designation O2 Specification SP Manual Specification Status Notes active 2005 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 Multiple forms, conditions, and finishes Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 2000 Further Information Organizations American Iron and Steel Institute (AISI)
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Range attributes

C (Carbon)

0.85 to 0.95