P11 Alloy Steel (ASTM A335 P11)
P11 Alloy Steel Chemical Properties. ASTM A335 P11 has a chemical composition that includes 2.25-2.75% molybdenum, 1% manganese, 0.4-0.6% silicon, 1-1.5% chromium, and 0.15-0.25% carbon. This combination of elements makes it resistant to corrosion from both acidic and alkaline environments and oxidation when exposed to …