MIL-M-17194D & ASTM F-1267-91 Metal, Expanded, Steel

Type I: Standard Expanded Metal
Type II: Flattened Expanded Metal
Class 1: Uncoated Mill Finish
Class 2: Hot Dip Zinc Galvanized
Grade A-.0025” minimum coating
Grade B-.0012” minimum coating
Class 3: Corrosion resisting steel

MIL-M17999C Metal, Expanded, Aluminum

Class 1: Standard Expanded Metal
Class 2: Flattened Expanded Metal