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Name plate Density/(g/cm3) Gray cast iron HT100–HT350: 6.6–7.4 White cast iron S15, P08, J13, etc.: 7.4–7.7 Malleable cast iron KT30-6–KT270: 27.2–7.4 Cast steel ZG45, ZG35CrMnSi, etc.: 7.8 Industrial pure iron DT1–DT6: 7.87 Ordinary carbon steel Q195, Q215, Q235, Q255, Q275: 7.85 High-quality carbon steel 05F, 08F, 15F; 10, 15, 20, 25, 30, 35, 40, 45, 50: 7.85 Carbon tool steel T7, T8, T9, T10, T12, T13, T7A, T8A, T9A, T10A, T11A, T12A, T13A, T8MnA: 7.85 Free-cutting steel Y12, Y30: 7.85 Spring steel wire I, II, IIa, III: 7.85 Low-carbon high-quality wire Zd, Zg: 7.85 Manganese steel 20Mn, 60Mn, 65Mn: 7.81 Chromium steel 15CrA, 20Cr, 30Cr, 40Cr, 38CrA: 7.74, 7.82, 7.80 Chrome-vanadium steel 50CrVA: 7.85 Chrome-nickel steel 12CrNi3A, 20CrNi3A, 37CrNi3A: 7.85 Chrome-nickel-molybdenum steel 40CrNiMoA: 7.85 Chrome-nickel-tungsten steel 18Cr2Ni4WA: 7.8 Chrome-molybdenum-aluminum steel 38CrMoA1A: 7.65 Chrome-manganese-silicon steel 30CrMnSiA: 7.85 Chrome-manganese-silicon-nickel steel 30CrMnSiNi2A: 7.85 Silicomanganese steel 60Si2MnA: 7.85 Silicon-chromium steel 70Si2CrA: 7.85 High-strength alloy steel GC-4, GC11: 7.82 High-speed tool steel W9Cr4V, W18Cr4V: 8.3, 8.7 Bearing steel GCr15: 7.81 Stainless steel 0Cr13, 1Cr13, 2Cr13, 3Cr13, 4Cr13; Cr14, Cr17; Cr17Ni2, Cr18, 9Cr18, Cr25, Cr28; 0Cr18Ni9, 1Cr18Ni9; 1Cr18Ni9Ti, 2Cr18Ni9; Cr18Ni11Nb; 1Cr23Ni18, Cr17Ni3Mo2Ti; 1Cr18Ni11Si4A1Ti; 2Cr13Ni4Mn9; 3Cr13Ni7Si2: 7.7, 7.75, 7.85, 7.85, 7.9, 7.9, 7.52, 8.5, 8.0