Chemical Composition Base Element Fe (Iron) C (Carbon) 0.15 to 0.19 % Cr (Chromium) 0.3 % (maximum) Fe (Iron) 97 to 98.3 % (estimate) Mn (Manganese) 1.2 to 1.5 % Nb (Niobium) 0.015 to 0.025 % Ni (Nickel) 0.4 % (maximum) P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.04 % (maximum) Si (Silicon) 0.3 to 0.5 % 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 Carbon Steel Alloy Group Low-carbon steel and HSLA steel Alloy Sub-Group 1018 Country Poland Standards Body PN (Poland) Description Structural; welded tube; fine grain Designation G390 Specification Type Standard Specification PN-H-74244 Specification Year 1979 Specification Status Active Specification Status Notes withdrawn Source Worldwide Guide to Equivalent Irons and Steels, 5th ed.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 Polish Committee for Standardization (PKN) (PN)
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Chemical Composition