Range attributes C (Carbon) 1.1 to 1.3 % Cr (Chromium) 0.35 to 0.85 % Fe (Iron) 93.2 to 95 % (estimate) Mn (Manganese) 1 % Mo (Molybdenum) 0.3 % Ni (Nickel) 0.3 % Si (Silicon) 0.6 % V (Vanadium) 0.4 % W (Tungsten) 1 to 2 % 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 Obsolete Specification Type Standard Standards Body FED (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 Designation O7 Specification FED QQ-T-570 Specification Status Notes Cancelled (S/S By ASTM A681) 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 1987 Further Information Organizations Department of Defense (MIL/DoD-F/FED QQ)
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Range attributes

C (Carbon)

1.1 to 1.3