What is ST 321 material?
Stainless steel Grade 321 is stabilized austenitic stainless steel. It is stabilized with added titanium with the presence of chromium and nickel in the composition. Titanium prevents the formation of chromium carbide precipitation from welding or exposure to high temperatures. Titanium stabilized steel is the material of choice in applications with working temperatures in the 400 – 900oC as it has improved stress fracture performance and high-temperature creep resistance, and its stress mechanical properties are superior to 304 stainless steel.If you prioritize heat resistance and weld stability, choose 321 stainless steel. If you are concerned about corrosion resistance in chemical or saltwater environments, 316 stainless steel will be a better fit for you.Type 321 is a good choice for applications where heat is an issue. Celsius where 304 is normally used up to 500 degrees Celsius. Grade 321 has excellent forming and welding characteristics. It does not polish well so would not be used for decorative applications.If you prioritize heat resistance and weld stability, choose 321 stainless steel. If you are concerned about corrosion resistance in chemical or saltwater environments, 316 stainless steel will be a better fit for you.
What is 321 material grade?
UNS S32100) is a titanium-stabilized austenitic stainless steel that features improved resistance to intergranular corrosion. This grade is suitable for high-temperature applications up to 1500°F (815°C), where the addition of titanium stabilizes the material against chromium carbide formation. The stainless steel 316 features corrosion resistance, excellent formability, and minimal effect at high temperatures. Stainless Steel 321 comes with more titanium content of titanium. Titanium boosts its internal corrosion which helps during welding and other temper sensitive work.Type 321 stainless steel has five times more titanium than carbon, which stabilizes the alloy to improve weldability.There are many properties that make 321 stainless steel a wise choice for food processing equipment and storage. Alloy 321 has a track record of being used in areas where sanitation is key. The passive film protecting the 321 stainless steel plate surfaces prevents contamination and bacterial growth.Chemical Composition of 321 and 321H Stainless Steel Plate The difference between 321 and 321H grades lies in the amount of carbon contained within each metal. H contains between 0.While both resist carbide precipitation during welding, 316Ti (with molybdenum) excels in chloride-rich settings, whereas 321 prioritizes oxidation resistance. This guide helps engineers and procurement teams select the optimal grade for their projects.
What is 321 material equivalent to?
Stainless steel 321 is equivalent to grade 304 in the annealed condition. It has superior corrosion resistance if a weldment in these grades has not been post-weld annealed, or if the application involves service in the 425-9000C range. Due to the addition of molybdenum, grade 316 stainless steel is more corrosion resistant than similar alloys, such as 304 stainless steel. This reduces pitting from chemical environments and allows grade 316 stainless steel to be used in highly acidic and caustic environments that would otherwise eat away at the metal.Grade 316 often exhibits better strength at high temperatures, although both have excellent heat resistance. Grade 304 vs.The stainless steel 321 works best at higher temperatures. The titanium in it helps to prevent the brittleness in them when the stainless steel is exposed to more heat for a longer period of time. Stainless steel 316 has a high impact of resistance at the low temperatures making them tougher in cold environments.This is particularly apparent for pitting and crevice corrosion in chloride environments. L, the low carbon version of 316 stainless steel, is immune to grain boundary carbide precipitation (sensitisation).When it comes to tensile strength, the two are almost identical. The yield strength of 316 stainless steel is higher, but the difference is relatively small. When hardened through cold working, both 304 and 316 stainless steel can achieve considerably higher hardness and strength ratings.
What is 321 grade stainless steel?
Type 321 is a titanium stabilized chromium nickel austenitic stainless steel with corrosion resistance similar to 304/304L. Both 316 and 316L are similar to 304, which is used in the food industry, among other things, but types 316 and 316L have better corrosion resistance and are stronger at high temperatures.Type 321 is non hardenable by heat treatment and can only be hardened by cold working.It also has a higher level of corrosion resistance, including when exposed to salt water. It performs well against pitting and is also resistant to caustic chemicals.