Rod Stock, Corrosion Resistant, Stainless Steel, Alloy Type 304, Diameter 3/4 in, Length 18 ft, Unfinished Finish, Temper Annealed, Diameter Tolerance +/-0.002 in, Length Tolerance +/- 3.00 in, Typical Tensile Strength (PSI) 85000, Typical Yield Strength (PSI) 30000, Typical Hardness 75, Hardness Scale Rb, Standards AMS 5639, ASTM A276, ASTM A479