Chemical Composition Base Element Fe (Iron) C (Carbon) 0.38 to 0.45 % Cr (Chromium) 0.9 to 1.2 % Fe (Iron) 96.8 to 97.9 % (estimate) Mn (Manganese) 0.5 to 0.8 % Mo (Molybdenum) 0.15 to 0.3 % P (Phosphorus) 0.025 % S (Sulfur) 0.025 % Si (Silicon) 0.15 to 0.4 % 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. Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group 4140/ 4142 Country Austria Standards Body ONORM (Austria) Designation StL5 Specification Type Standard Specification ONORM M3170 Specification Status Active Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Available forms Wrought Similar Alloys Click here to find similar alloys Links Organizations Osterreichisches Normungsinstitut (ON) (Austrian Standards Institute) (ONORM)
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Chemical Composition