Range attributes C (Carbon) 0.3 to 0.48 % Fe (Iron) 99.4 to 99.7 % (estimate) P (Phosphorus) 0.035 % (maximum) Rockwell Hardness C scale 45 to 53 S (Sulfur) 0.04 % (maximum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Carbon Steel Alloy Group Medium-carbon steel Alloy Sub-Group 1038/1038H 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 ASTM (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 QT alloy steel socket set screws (SSS), sizes M1.6-M24 Designation ASTM F912 Specification ASTM F912/F912M Specification Status Notes active 2004 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 QT alloy steel socket set screws (SSS), sizes M1.6-M24 Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 2004 Further Information Organizations American Society for Testing and Materials (ASTM)
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Range attributes

C (Carbon)

0.3 to 0.48