Machinery's Handbook, 31st Edition
Alloy Steels 413 202 (S20200): General-purpose low-nickel equivalent of type 302. Kitchen equipment; hub caps; milk handling. 205 (S20500): Lower work-hardening rate than type 202; used for spinning and special drawing operations. Nonmagnetic and cryogenic parts. 301 (S30100): High work-hardening rate; used for structural applications where high strength plus high ductility are required. Railroad cars; trailer bodies; aircraft structurals; fasteners; automobile wheel covers, trim; pole line hardware. 302 (S30200): General-purpose austenitic stainless steel. Trim; food-handling equip ment; aircraft cowlings; antennas; springs; cookware; building exteriors; tanks; hospital, household appliances; jewelry; oil refining equipment; signs. 302B (S30215): More resistant to scale than type 302. Furnace parts; still liners; heating elements; annealing covers; burner sections. 303 (S30300): Free-machining modification of type 302, for heavier cuts. Screw ma - chine products; shafts; valves; bolts; bushings; nuts. 303Se (S30323): Free-machining modification of type 302, for lighter cuts; used where hot-working or cold-heading may be involved. Aircraft fittings; bolts; nuts; rivets; screws; studs. 304 (S30400): Low-carbon modification of type 302 for restriction of carbide precipita tion during welding. Chemical and food processing equipment; brewing equipment; cryogenic vessels; gutters; downspouts; flashings. 304L (S30403): Extra-low-carbon modification of type 304 for further restriction of carbide precipitation during welding. Coal hopper linings; tanks for liquid fertilizer and tomato paste. 304Cu (S30430): Lower work-hardening rate than type 304. Severe cold-heading applications. 304N (S30451): Higher nitrogen than type 304 to increase strength with minimum ef- fect on ductility and corrosion resistance, more resistant to increased magnetic permea- bility. Type 304 applications requiring higher strength. 305 (S30500): Low work-hardening rate; used for spin forming, severe drawing, cold heading, and forming. Coffee urn tops; mixing bowls; reflectors. 308 (S30800): Higher-alloy steel having high corrosion and heat resistance. Welding filler metals to compensate for alloy loss in welding; industrial furnaces. 309 (S30900): High-temperature strength and scale resistance. Aircraft heaters; heat-treating equipment; annealing covers; furnace parts; heat exchangers; heat-treating trays; oven linings; pump parts. 309S (S30908): Low-carbon modification of type 309. Welded constructions; assem blies subject to moist corrosion conditions. 310 (S31000): Higher elevated temperature strength and scale resistance than type 309. Heat exchangers; furnace parts; combustion chambers; welding filler metals; gas-turbine parts; incinerators; recuperators; rolls for roller hearth furnaces. 310S (S31008): Low-carbon modification of type 310. Welded constructions; jet engine rings. 314 (S31400): More resistant to scale than type 310. Severe cold-heading or -forming applications. Annealing and carburizing boxes; heat-treating fixtures; radiant tubes. 316 (S31600): Higher corrosion resistance than types 302 and 304; high creep strength. Chemical and pulp handling equipment; photographic equipment; brandy vats; fertilizer parts; ketchup cooking kettles; yeast tubs. 316L (S31603): Extra-low-carbon modification of type 316. Welded construction where intergranular carbide precipitation must be avoided. Type 316 applications requiring ex- tensive welding. 316F (S31620): Higher phosphorus and sulfur than type 316 to improve machining and nonseizing characteristics. Automatic screw machine parts. 316N (S31651): Higher nitrogen than type 316 to increase strength with minimum effect on ductility and corrosion resistance. Type 316 applications requiring extra strength.
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