Expanded stainless steel sheet 304 is normally used for aerospace, food and beverage, machinery, architectural, chemical, and cryogenic applications. 304 expanded sheet is made from one-piece construction metal that won't unravel, even over many years. The strands and bonds of the diamond-shaped trusses add strength and rigidity. Stainless steel flattened expanded metal sheet stock is available in full size and custom cut lengths.