Stainless steel expanded metal is simply a metal sheet that has been simultaneously slit and stretched into a rigid, non-traveling mesh with diamond-shaped openings.
Because of its favorable strength-to-weight ratio, expanded metal has hundreds of uses, from air filters to patio furniture to walkways.
½ #20 – 1 ½ #9
Stainless Steel Perforated metals
Perforated metals are used for filtration, safety, and decorative applications. Perforated metal comes in many hole sizes and patterns. The holes can be round, square, rectangular, slotted, or decorative. There are many standard patterns, but custom patterns are also available.
Perforating can reduce the weight of a piece of metal without affecting its strength too adversely. Perforated metals have greater structural strength than expanded metals of comparable thickness.
Various sizes and patterns available in 4’ X 10’ and 12’ lengths
Regular - Is sheet simultaneously slit and stretched into a rigid, non-traveling open mesh.
Flattened - is manufactured by processing regular expanded metal in a rolling mill resulting in a smooth flat sheet.
304 stainless steel expanded metal comes from 18 gauge (0.050" thick) sheet metal that is expanded. We stock 304 stainless steel expanded metal in 300 to 500-foot coils. The 304 stainless steel expanded metal is thin enough to be rolled by hand and pieces measuring over 4' in length will typically be rolled up for shipping purposes.
With our 304 stainless steel expanded metal, the long way of the diamond runs along the width. We can typically cut pieces that are 10' or shorter to size along the width, but you will need to call a sales representative at +86-(311)-89296967 to discuss that option.
The 304 stainless steel expanded metal openings measure as follows:
The short way of diamond opening = ~ 3/4"
Long of diamond opening = ~ 1 3/4"
The short way of diamond opening = ~ 1/2"
Long of diamond opening = ~1 1/8"
Common uses for 18 gauge 304 stainless steel expanded metal include architectural applications, chimney caps, animal guards, various types of filtration, concrete reinforcement, and used commonly in conjunction with sheet metal projects. 304 stainless steel expanded metal would not be recommended for use in grills, trailers, catwalks, etc. since it isn't strong enough for those applications.
304 stainless steel is a commercial grade of stainless steel sheet metal and the most widely used stainless steel. 304 stainless steel sheet metal is a versatile, anti-rusting, and heat resistant steel for general use. 304 stainless steel sheet metal uses include food equipment, plumbing materials, kitchen sinks, and backsplashes. 304 stainless steel expanded metal is austenitic, meaning it will not attract or hold a magnet. If you need an expanded metal that attracts a magnet, the galvanized expanded metal would be the choice.