Hastelloy C22 is a versatile nickel-chromium-molybdenum tungsten alloy, which has better overall corrosion resistance than other existing nickel-chromium-molybdenum alloys, including Hastelloy C276, C4 alloy and 625 alloy.
Chemical composition (%):
Nickel: Balance
Chromium: 20.0 - 22.5
Molybdenum: 12.5 - 14.5
Iron: 2 - 6
Tungsten: 2.5 - 3.5
Cobalt: Max 2.5
Carbon: Max 0.015
Manganese: Max 0.5
Silicon: Max 0.08
Vanadium: Max 0.35
Phosphorus: Max 0.02
Sulfur: Max 0.02