Type 321 is an electric-furnace processed austenitic stainless steel. It is non-heat treatable and non-magnetic in the annealed condition. This alloy contains 18% chromium, 8% nickel and a substantial addition of titanium. The titanium forms insoluble and stable carbide, which ties up all the carbon in the alloy and therefore prevents it from precipitating as chromium carbides. This leaves the chromium in solution to resist corrosion to a very high degree. This is extremely beneficial in applications of temperatures ranging from 800° F, to 1600° F., as it eliminates the necessity for re-annealing after fabrication.
Type 321 is used principally for applications involving welding or sustained elevated temperature operations where re-annealing is not practical, It is used extensively in the aircraft and missile industries.
Corrosion Resistance This alloy is extremely resistant to intergranular corrosion and has very good corrosion resistance in weld areas. It has slightly less corrosion resistance to atmospheric conditions than Type 302 or Type 304 in the annealed condition.
Typical Applications
Engine Parts
Heat Exchangers
Exhaust Stacks
Rocket Engines
Manifolds
Cronidur® 30 Stainless Steel
Cronidur® 30, a stainless martensitic steel, has greater corrosion resistance then 440c, and is longer wearing. Applications include aviation, medical engineering, industrial applications, precision mechanics, and many more!
Aero Metals Alliance (AMA) provides Aluminium, Stainless Steel, Alloy Steel, Titanium, Nickel Alloys and supply chain management services to the world’s leading aerospace companies. We currently operate from fourteen Service Centres in five countries throughout the America, Europe and Asia
This enables us to aggregate demand across a single supply chain on behalf of the world’s leading OEMs whilst at the same time providing a truly responsive local service to meet the needs of individual sub-contractors anywhere in the world.
Each of our Service Centres are equipped with the latest technology to meet the specific needs of each of our customers.
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