Attributes . 0.09-0.11% Carbon (C), 1.63-1.74% Manganese (Mn), 0.56-0.64% Silicon (Si), ? 0.04% Nickel (Ni), 0.43-0.46% Molybdenum (Mo), ? 0.01% Sulphur (S), 0.007-0.016% Phosphorus (P), 0.16-0.22% Copper (Cu) . Names