Rod Stock, Corrosion Resistant, Stainless Steel, Alloy Type 630, Diameter 3 1/4 in, Length 12 ft, Unfinished Finish, Temper Annealed, Diameter Tolerance +0.0468/ -0 in, Length Tolerance +/- 2.00 in, Typical Tensile Strength (PSI) Not Rated, Typical Yield Strength (PSI) Not Rated, Typical Hardness 30, Hardness Scale Rc, Standards AMS 5643, ASTM A564 Type 630