Attributes . 0.10% Carbon (C), 0.40 - 0.70% Manganese (Mn), 0.50% Silicon (Si), 8 - 10.5% Chromium (Cr), 0.8 - 1.2% Molybdenum (Mo), 0.025% Sulphur (S), 0.025% Phosphorus (P), 0.5% Nickel (Ni), 0.35% Copper (Cu), 0.50% OET . Names