Grade
|
Description
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Applications
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304
|
General Purpose
|
Cookware, Flatware, Autmomotive wiper arms, Hardware, hinges, Entry Doors
(click here for complete list)
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305
|
Ni increased to lower work hardening
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Coffee urn tops, Expanded material parts, Formed parts (requiring extra low work hardening characteristics), Free spinning operations
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309S
|
Cr & Ni increased for high temperature
|
Annealing boxes, Chemical processing equipment (elevated temperature), Conveyor parts, Dryers, Electric range elements, Furnace parts
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310S
|
Same as 309, only more so
|
Annealing boxes, Furnace belts, Chemical processing equipment (elevated temperature), Conveyor parts
Dryers, Furnace parts
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316
|
Mo added to increase corrosion resistance
|
Chemical processing equipment, Storage tanks, Chemical transportation tanks, Food processing equipment, Oil refining equipment
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317
|
More Mo & Cr added for better corrosion performance
|
Chemical processing equipment, Ink manufacturing equipment, Pharmaceutical processing equipment, Fertilizer handling equipment
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321
|
Ti added to prevent carbicle precipitation
|
Aircraft exhaust manifold and flanges, Chemical equipment, Fire walls, Pressure tanks
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347
|
Cb added to prevent carbicle precipitation
|
Aircraft exhaust manifold and flanges, Expansion joints, Furnace stacks and dampers, Welded storage tanks for organic chemicals
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330
|
Si increased for highest heat resistance
|
Annealing boxes, Combustion chambers, Burners and exhaust parts
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409
|
Lower Cr Primarily used for automotive exhaust
|
Automotive exhaust systems, Fins for heater tubes, Smoke control ductwork, Transformer and capacitor cases
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410/410S
|
General Purpose
|
Bushings, Trays for oil fractionating towers, Hardware, Cutlery, Press plates
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420
|
Increased C to improve mechanical properties
|
Cutlery/Scissors, Dental equipment, Surgical equipment
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430
|
P & S added for improved machining
|
Architectural applications (interior), Automotive trim, Cooking utensils, Food processing equipment
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434
|
Mo added for improved corrosion resistance in auto trim
|
Automotive trim
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