ALCHROME ALLOY 750 is an iron-chromium-aluminum resistance alloy operable at temperatures up to 1900 F (1038 C). It is usually used in medium-to-heavy wire sizes. Because of its higher resistivity than nickel-chromium alloys it is often specified where space is a factor. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance. Filing Code: Fe-87. Producer or source: Carpenter.