Stainless Steel Rod, Stainless Steel, 17-4, Rod, Outside Diameter 1/2 in, 6 ft Overall Length, Fabrication Cold Rolled, Heat Treatment Annealed, Heat Treatable Heat Treatable, Mechanical Finish Mill, Yield Strength 145 ksi, Tensile Strength 160 ksi, 363 BHN Brinell Hardness, 39 HRC Rockwell Hardness, Includes Material Certificate Material Certificate with Lot Number, Standards ASTM A564, System of Measurement Inch