Specifications include, but are not limited to: The one-time purchase of various carbon steel materials or equal. 3.1 21(PCS.) Carbon steel rectangular bars Carbon steel rectangular bars, or equal, must have a thickness of 0.25 inches, or equal. Carbon steel rectangular bars, or equal, must have a width of 2 inches, or equal. Carbon steel rectangular bars, or equal, must have an unpolished finish. Carbon steel rectangular bars, or equal, must have an alloy type of 1018, or equal. Carbon steel rectangular bars, or equal, must have a length of 6 feet, or equal. Carbon steel rectangular bars, or equal, must have a cold finish temper, or equal. Carbon steel rectangular bars, or equal, must have a thickness tolerance of +0.000/0.005 inches, or equal. Carbon steel rectangular bars, or equal, must have carbon steel standards of AISI 1018, ASTM 108, or equal. Carbon steel rectangular bars, or equal, must have a width tolerance of +0.000/0.005 inches, or equal. Carbon steel rectangular bars, or equal, must have a length tolerance of +/-6.000 inches, or equal. Carbon steel rectangular bars, or equal, must have a tensile strength (PSI) of 65,000 psi, or equal. Carbon steel rectangular bars, or equal, must have a yield strength (PSI) of 55,000 psi, or equal. Carbon steel rectangular bars, or equal, must be made of carbon steel. Carbon steel rectangular bars, or equal, must be made of low carbon steel carbon grade, or equal. 3.2 46(PCS.) Carbon steel angle stock 3.2.1 Carbon steel angle stock, or equal, must have 90 degrees angle. 3.2.2 Carbon steel angle stock, or equal, must have 0.25 inch thickness, or equal. 3.2.3 Carbon steel angle stock, or equal, must have leg length of 1.5 inches, or equal. 3.2.4 Carbon steel angle stock, or equal, must have length of 6 feet, or equal. 3.2.5 Carbon steel angle stock, or equal, must have mill finish. 3.2.6 Carbon steel angle stock, or equal, must have hot rolled temper. 3.2.7 Carbon steel angle stock, or equal, must have a thickness tolerance of +/-0.010 inches, or equal. 3.2.8 Carbon steel angle stock, or equal, must have a leg length tolerance of +/- 0.0416 inches, or equal. 3.2.9 Carbon steel angle stock, or equal, must have a length tolerance of +/-0.125 inches.