303 Stainless Turned, Ground & Polished Precision Shafting is a non-magnetic, austenitic stainless steel that is not able to be hardened by heat treatment. It is the free machining modification of the basic 18% chromium / 8% nickel stainless steel. Alloy 303 was specially designed to exhibit improved machinability while maintaining good mechanical and corrosion-resistant properties. Due to the presence of sulfur in the steel composition, Alloy 303 is the most readily machinable austenitic stainless steel; however, the sulfur addition does lower Alloy 303’s corrosion resistance to below that of Alloy 304. Like other austenitic grades, Alloy 303 demonstrates excellent toughness, although the sulfur does reduce this a little as well.
Meets ASTM A582
TG&P Bar Diameter Tolerances
Mechanical Properties (Typical Min.) | |
---|---|
Tensile Strength (PSI)* | 85,000 PSI |
Yield Strength | 45,000 PSI |
Elongation | 50% |
Chemical Composition | |
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Element | Percentage (%) |
Carbon | .15% max |
Chrome | 17.0%- 19.0% |
Manganese | 2.0% max |
Nickel | 8.0% -10.0% |
Phosphorus | 0.20% max |
Sulphur | .15% min |
Silicon | 1.00% max |
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