Chromium for high temperature uses are as follow.

The group, which includes cast alloys containing 48 to 52% Ni and 52 to 48% Cr, are used for heat-resistant and elevated temperature corrosion applications such as structural members, containers, supports, hangers, spacers, and the like in corrosive environments up to 1090oC

A high strength nickel chromium alloy, commonly referred to as IN-657, has been developed that provides the same good resistance to fuel oil ash corrosion exhibited by the standard 50Ni-50Cr alloys, but with improved creep and stress rupture properties.

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