![]() What is Type 316 stainless steel and what’s it used for? Type 304 stainless steels are used in corrosion resistant electrical enclosures, auto molding and trim, wheel covers, kitchen equipment, hose clamps, exhaust manifolds, stainless hardware, storage tanks, pressure vessels and piping. All provide ease of fabrication and cleaning, prevention of product contamination offer a variety of finishes and appearances. Type 304 proves to be resistant to oxidation, corrosion, and durability. Its alloys are all modifications of the 18% chromium, 8% nickel austenitic alloy. Type 304, with its chromium-nickel content and low carbon, is the most versatile and widely used of the austenitic stainless steels. What is Type 304 stainless steel and what’s it used for? We make sure we get one with every shipment we receive at Nema Enclosures so that we can assure our customers that the enclosure and its parts are constructed of the exact stainless steel material, as specified and ordered. Some small parts such as clamps and mounting feet, constructed of 316 stainless steel are specifically marked, in this case a number 6 within a circle, as shown in the photo above. ![]() That’s why you need a material test report (MTR) of the actual material to validate it as being 304 or 316. There’s no visible difference between two identical pieces of sheet metal, a polished or grained the exact same way. How do you know you’re getting 316 stainless steel instead of 304 stainless steel? We found that by using 316 stainless steel instead of 304 stainless steel on an outdoor enclosure that will be exposed to the elements (like on an oil rig, for example) not only increases the life span of the enclosure but it is much safer to be around. The good news is we have a simple cost effective solution. I’ve seen some real horror shows when enclosures rust out. We’re talking parts damage and replacement, repair costs including labor and downtime. Not only is there the danger of exposing all your critical electrical components inside, it could cost you a lot to replace when it shorts out. I found the brochure Stainless Steel for Coastal and Salt Corrosion Applications to be very helpful as a general reference for using stainless steel in our area.Ĭlick here to view our 304 vs 316 stainless steel infographic! The last thing you need is your outdoor electrical enclosure rusting out on you. The molybdenum is added to help resist corrosion to chlorides (like sea water and de-icing salts). The simple answer is 304 contains 18% chromium and 8% nickel while 316 contains 16% chromium, 10% nickel and 2% molybdenum.
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