Inconel 751 is a precipitation-hardened nickel-chromium alloy, mainly used in the exhaust valve of internal combustion engines. The alloy has basically the same excellent physical and mechanical and corrosion resistance properties as Inconel X-750. In the evaluation of materials for exhaust valve applications, Alloy 751 demonstrated outstanding performance in lead oxide screening tests at 1675°F (913°°F).
Inconel 751 consistently delivered excellent results with an average corrosion rate of 4.31 grams per square decimeter per hour. Like other nickel-chromium alloys, Inconel 751 also resists erosion from other exhaust flow impurities such as sulfur, bromine, and chlorine.
The density of the alloy is ρ=8.22g/cm³.