321 stainless steel coil is a type of austenitic stainless steel with low carbon content and good corrosion resistance to many corrosive environments. 321 offers excellent weldability, good machinability and outstanding fabrication properties.

321 stainless steel coil is commonly used in the chemical industry, pulp and paper industry, marine and offshore engineering industries as well as in the food and beverage industries.

321 stainless steel coil also has a high level of resistance to chloride stress corrosion cracking and pitting. It is also resistant to hydrochloric acid at elevated temperatures up to 250°C (480°F).

Applications of 321 stainless steel coils

1. Petroleum waste gas combustion pipeline
2. Engine exhaust pipe
3. Boiler shell, heat exchanger, heating furnace parts
4. Silencer parts for diesel engines
5. Boiler pressure vessel
6. Chemical transport truck
7. Expansion joint
8. Spiral welded pipes for furnace and dryers

Features of 321 stainless steel coils

1, Good Corrosion Resistance: 321 stainless steel coil has better corrosion resistance than 304 and 316 types of stainless steels, which makes it ideal for use in corrosive environments.
2, Excellent Weldability: 321 stainless steel coil can be welded by all methods including arc welding ( TIG / GTAW ), electron beam welding ( EBW / EFW ), submerged arc welding ( SAW ) and laser beam welding ( LBIW ).
3, High Strength: The strength levels of 321 stainless steel coils are up to 50% higher than those of 304 types of stainless steels and up to 80% higher than those of 316 types of stainless steels due to their increased carbon content and austenite grain size.