Stainless Steel Disc, Stainless Steel, 303, Disc, Outside Diameter 3 in, Outside Diameter Tolerance +/-0.003 in, 4 in Overall Length, Length Tolerance +/-0.125 in, Fabrication Cold Rolled, Heat Treatment Annealed, Heat Treatable Not Heat Treatable, Mechanical Finish Mill, Yield Strength 60,000 psi, Tensile Strength 90,000 psi, 160 BHN Brinell Hardness, 80 HRB Rockwell Hardness, Includes Material Certificate Material Certificate with Lot Number, Standards AMS 5640, ASTM A582