MIL-STD-866 Grinding Of Chrome Plated Steel And Steel Parts Heat Treated To 180,000 Psi Or OverThis standard establishes the requirements for grinding of martensitic high strength steel heat-treated to 180,000 pounds per square inch psi, ultimate tensile strength uts and above, and the grinding of chromium plating applied to such high strength steel, when such parts are intended for use in components for man-rated flight hardware.