Range attributes Brinell Hardness 179 (minimum) C (Carbon) 0.3 to 0.4 % Cr (Chromium) 0.8 to 1.15 % Elongation 20 % strain (minimum) Fe (Iron) 96.8 to 97.9 % (estimate) Mn (Manganese) 0.7 to 1 % Mo (Molybdenum) 0.15 to 0.25 % P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.025 % (maximum) Si (Silicon) 0.15 to 0.35 % Ultimate Tensile Strength 545 to 760 MPa Yield Strength 380 MPa (minimum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group 4130/ 4135/ 4137 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 Alternate Name formerly Type V Grade 2 Class 55 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 Thin-walled forgings (including glass bottles) for pressure vessel use. Designation Grade F Class 55 Specification ASTM A372/A372M Specification Status Notes active 2003 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 Thin-walled forgings (including glass bottles) for pressure vessel use. Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 2003 Further Information Organizations American Society for Testing and Materials (ASTM)
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Range attributes

Brinell Hardness

179

(minimum)