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 303S
Annealed Bars and Pump Shafting: Ends painted Red
High Tensile Bars (Condition B): Ends painted Gray & Orange

Physical Condition A

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

Max. Brinell 235
Unit of Measure

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Item #

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar

N/A .0104 lb N/A .1248 lb
N/A .0235 lb N/A .2820 lb
N/A .0418 lb N/A .5016 lb
N/A .0653 lb N/A .7831 lb
N/A .0940 lb N/A 1.128 lb
N/A .1279 lb N/A 1.535 lb
N/A .1671 lb N/A 2.005 lb
N/A .2114 lb N/A 2.537 lb
N/A .2610 lb N/A 3.132 lb
N/A .3158 lb N/A 3.790 lb
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