| Grade |
Characteristics |
Typical Applications |
301
Austenetic
|
Able to attain high strength and ductility through moderate or severe Cold Working. |
. Automobile items
. Conveyer belts
. Railway Coaches
. Metal Fixtures for construction purposes
. Roof drainage products
. Door frames tableware etc |
304
Austenetic
|
Excellent corrosion
resistance & forming
characteristics.
|
. Chemical, petrochemical and fertiliser industries and as an equipment in dairy
. Food processing
. Pharmaceutical Industries
. Hospitals
. Households as Kitchenware
. Cryogenic
. Vessels
. Heat exchangers in Air conditioning
. Refrigerator,
. For machinery in paper, pulp, textile, beverage sector
. Architectural applications as panels, curtain walls, roofing |
304L
Austenitic
|
Low Carbon level (0.03 max.) Improved resistance to intergranular corrosion. |
Used for parts and structures which can not be heat treated for stress relieving after welding less tendency to work hardening. |
310S
Austenitic
|
High Creep strength and mechanical properties at higher temperature. |
. Air heaters annealing boxes
. Ovens
. Carburising boxes
. Fire box sheets
. Furnace lining
. Furnace stacks, and dampers
. Gas turbine parts
. Heat exchangers
. Kiln lining
. Nozzle diaphragm assemblies for turbo jet engines
. Oil burner parts
. Paper mill equipment
. Oil refinery equipment
. Recuperators. |
316
Austenitic
|
2-3% Mo which improves Austenitic corrosion resistance to halogens and imports hot strength characteristics resistance to pitting corrosion.
|
. Architectural items
. Marine exteriors
. Chemical processing equipment
. Food processing equipment
. Petroleum refining equipment
. Pharmaceutical equipments
. Photographic equipment
. Pulp and paper processing equipment
. textile finishing equipment |
316L
Austenitic
|
Reduced tendency towards carbide precipitation. |
For parts which cannot be heat treated after welding. |
321
Austenitic
|
Similar to 304 but tabilized with Titatnium to avoid intergranular corrosion. Resists sealing and vibration fatigue. |
. Air craft exhausts
. Stacks and manifolds
. Pressure vessels
. Large mufflers for stationary diesel engines
. Carburetors
. Expansion bellows
. Stack liners
. Thin wall tubes |
