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 207
Unit of Measure

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Item #

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar

N/A 26.10 lb N/A 313.2 lb
N/A 28.23 lb N/A 338.8 lb
N/A 30.45 lb N/A 365.3 lb
N/A 32.74 lb N/A 392.9 lb
N/A 35.12 lb N/A 421.5 lb
N/A 37.59 lb N/A 451.0 lb
N/A 40.14 lb N/A 481.6 lb
N/A 42.77 lb N/A 513.2 lb
N/A 48.28 lb N/A 579.3 lb
N/A 51.16 lb N/A 613.9 lb
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