316 Stainless Steel Supplier Stainless Shapes is a proud 316 Stainless Steel supplier. 316 Stainless Steel is one of the most common metals used today. The only metal that is used more than 316 and 316L is 304, and it is a variant. You can read about the variants here. However, while everyone may utilize 304 on land, 316 is universally used. This is because it is the ability to be used in aquatic conditions. While it is used in certain conditions, it is also used in surgical stainless steel. Attributes of 316 Resistance to Oxidation – The main reason why 304 and 316 are used too often is that it is extremely hard for these materials to rust. They are extremely sturdy, and the strong top holds up a great deal of weight. Furthermore, they can hold it for extreme amounts of time. This accessibility, mixed with the low cost, is the reason why the two are so commonly used. Corrosion Resistance and Pitting Resistance – Both sheets of steel have the ability to withstand natural corrosion. These include things such as food service and the natural oils of constant touching. However, the biggest difference is that marine corrosion usually causes something called pitting, which is when corrosion occurs and burrows holes into specific areas of the metal. While 304 has problems with pitting and water, 316 can withstand such plights for much longer than 304 and most other stainless. Where it is most often used? Aquatic Construction – As for the reasons mentioned above, the pitting and corrosion resistance make 316 a shoe-in for when you are building around coastal regions or near bodies of water in general. Whether you need it for a dock or water mill, or would just like to localize the exterior of a vehicle so that it is more rain resistant. There is a myriad of reasons why you should choose 316. Biomedical Equipment – The corrosion resistance and resistance to malleability makes 316 great for surgical materials. Anything from scalpels to scissors is best when made with 316 stainless. Not sure what you are looking for? Call now! Stainless Shapes Stainless Shapes provides all kinds of stainless, nickel, and titanium. If you would like to know more about our family-run business, or would just like to know more about our products, give us a call today at (800) 748-9811! Furthermore, for a prompt and accurate quote, call us today. Call - 800-748-9811 Frequently Asked Questions What are the disadvantages of 316 stainless steel? + The primary disadvantages of Grade 316 are higher cost than 304 (typically 20-40% more due to molybdenum and additional nickel), susceptibility to stress corrosion cracking in concentrated hot chloride solutions above approximately 60 C, and the same inability to be hardened by heat treatment as other austenitic grades. What should I never use on stainless steel? + Never use bleach (sodium hypochlorite), hydrochloric acid, or concentrated chloride solutions on 316 stainless -- these can penetrate the passive film and cause pitting or stress corrosion cracking. Also avoid carbon steel tools and wire brushes that can leave embedded iron particles leading to rust staining. Will a magnet stick to 316 stainless? + A magnet will have little to no attraction to 316 stainless steel in the annealed condition -- it is austenitic and non-magnetic. Cold-worked 316 may show slight magnetism, but it is non-magnetic compared to carbon steel or ferritic/martensitic stainless grades. How long will 316 stainless steel last? + In the right environment, 316 stainless steel lasts virtually indefinitely. In food processing, pharmaceutical, and architectural applications it regularly achieves 30-50+ years of service. In highly aggressive environments, service life depends on proper grade selection (316L for welds, 316Ti for high temperature). What is the highest grade of stainless steel? + Among standard grades, super-austenitic alloys (904L, 254 SMO) and duplex/super-duplex grades (2205, 2507) offer higher corrosion resistance than 316. For extreme environments, nickel alloys (Inconel 625, Hastelloy C-276) significantly outperform 316. What is better than stainless steel 316? + For most demanding corrosion environments, 316L is the standard. Duplex 2205 offers better pitting resistance in high-chloride environments. 904L provides the best standard stainless performance in sulfuric acid. Nickel alloys are used when stainless fails. Which stainless steel is best? + For most applications, 316 is unambiguously better than 304 in aggressive environments; 304 is the economical choice for benign ones. The choice depends on the environment -- 304 for indoor, dry, and mildly corrosive conditions; 316 for marine, coastal, chemical, and food-processing environments with chloride exposure. How can I tell if my stainless steel is 304 or 316? + In the field, 304 and 316 look identical. An XRF analyzer is the only reliable field test to distinguish them by molybdenum presence. Certified mill test reports (CMTRs) from the original mill heat confirm the grade definitively. Stainless Shapes provides CMTRs with every order. What grade is the best stainless steel? + Grade 316 is the best standard specification for most applications where rust must be avoided -- particularly in marine, coastal, food processing, and chemical environments. For the most demanding chloride service, duplex 2205 or super-duplex 2507 provide additional margin. What is the difference between 304 and 316? + The key difference between 304 and 316 is the 2-3% molybdenum in 316, which significantly improves resistance to chloride pitting and crevice corrosion. Both are austenitic, non-magnetic, and non-hardenable. In most applications other than corrosive environments, they are functionally identical.
