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
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Size

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
N/A .3759 lb N/A 4.510 lb
N/A .4411 lb N/A 5.293 lb
N/A .5116 lb N/A 6.139 lb
N/A .5873 lb N/A 7.048 lb
N/A .6682 lb N/A 8.019 lb
N/A .7544 lb N/A 9.052 lb
N/A .8457 lb N/A 10.15 lb
N/A .9423 lb N/A 11.31 lb
N/A 1.044 lb N/A 12.53 lb
N/A 1.151 lb N/A 13.81 lb
N/A 1.263 lb N/A 15.16 lb
N/A 1.504 lb N/A 18.04 lb
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