A. As with CF3M, the first character (C) means the alloy is intended for "Corrosion Resistant" service. The second character (F) is the approximate location on the iron-chromium-nickel (FeCrNi) ternary diagram and indicates the iron, chromium and nickel content. The third character (8) represents the maximum carbon content in increments of 0.01%. In this instance, 0.08%. Finally, the character (M) states that Molybdenum is present.