Type 303 is "18-8" chromium-nickel stainless steel modified by the addition of selenium or sulphur, as well as phosphorus, to improve machinability and non- seizing properties. It is the most readily machinable of all the chromium-nickel arades and has good corrosion resistance It is non-magnetic in the annealed condition and not hardenable by heat treatment. Tensile strength and hardness can be increased by cold working. It is manufactured by the electric-furnace process and meets the exacting requirements of the aircraft industry.

UNS S30300. S30323

Color Marking

Type 303Se
Annealed Bars: Ends painted Purple
High Tensile Bars (Condition B): Ends painted Brown

Physical Condition A

Stock Lengths 10' to 12' and 20' to 22'

Max. Brinell 235
Unit of Measure
Items
Rounds

Types 303S Annealed and Cold Drawn Stainless Steel - Rounds

Rounds

Types 303S Annealed and Cold Drawn Stainless Steel - Rounds

Rounds

Types 303S Annealed and Cold Drawn Stainless Steel - Rounds

Rounds

Types 303S Annealed and Cold Drawn Stainless Steel - Rounds

Rounds

Types 303S Annealed and Cold Drawn Stainless Steel - Rounds
Estimated Weight per Foot N/A .0104 lb N/A .0235 lb N/A .0418 lb N/A .0653 lb N/A .0940 lb
Estimated Weight 12-Ft. Bar N/A .1248 lb N/A .2820 lb N/A .5016 lb N/A .7831 lb N/A 1.128 lb