1. Of or relating to an alloy or steel containing more of a solute element than the eutectoid composition; having a carbon content greater than the eutectoid point.
Usage: metallurgy; technical

Examples

• Hypereutectoid steel contains more than 0.77% carbon by weight.
• The microstructure of hypereutectoid alloys typically includes cementite networks.
• Engineers must carefully heat-treat hypereutectoid steels to avoid brittleness.
• Hypereutectoid compositions exhibit different phase diagrams than eutectoid materials.
• The hardness of hypereutectoid steel increases with higher carbon content.