303 stainless steel (cold drawn annealed, room temperature)
Minimum Properties Ultimate Tensile Strength, psi 89,900
Yield Strength, psi 34,800
Elongation 50%
Rockwell Hardness B83
Chemistry Iron (Fe) 69%
Carbon (C) 0.15% max
Chrome (Cr) 18%
Manganese (Mn) 2% max
Molybdenum (Mo) 0.6% max
Nickel (Ni) 9%
Phosphorus (P) 0.2% max
Sulphur (S) 0.15% min
Silicon (Si) 1% max

At OnlineMetals, we all failed shop class. Multiple times. As a matter of fact, our employment applications specifically ask to see people's grades for their high school shop classes. If they're too high, they go into the rejected pile. We're also not engineers, and cannot make any specific recommendations about the suitability of a given alloy, temper, or shape for your project or application.

All technical data is for comparison purposes only and is NOT FOR DESIGN. It has been compiled from sources we believe to be accurate but cannot guarantee. This ends the part of the website that our pointy-headed lawyers made us put in.

  • COLD DRAWN STAINLESS FLAT BAR T-303
  • HOT ROLLED STAINLESS STEEL FLAT BAR T-303
  • Key Stock - Stainless
  • METAL PACKS - STAINLESS
  • ROUND BAR T-303
  • STAINLESS STEEL HEX ROD T-303
  • STAINLESS STEEL SQUARE BAR T-303


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