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Rebar assemblies are used in building and road/bridge projects where they are embedded in concrete. These products are rolled round deformed bars which are further detailed, cut, bent and/or tied into assemblies to prepare for installation. Additionally, MBQ shapes are angles, flats, rounds, channels and others used in a variety of building, industrial and equipment products. For use in the construction market, they are detailed, cut, drilled, bolted, welded and otherwise processed at the fabricator to be prepared for installation. Steel rebar and MBQ produced by Nucor’s Frostproof mill are defined by the following ASTM and CSA standards: • ASTM A615/A615M 2022 Standard Specification for Deformed and Plain Carbon Steel Bars for Concrete Reinforcement [Grades 40, 60, 75, 80, 100] • ASTM A706/A706M-22A Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement [Grades 60, 80] • CSA G30.18M-09 (R2019) Carbon steel bars for concrete reinforcement [Grades 400R, 500R, 400W, 500W] • ASTM A1035/A1035M-20 Standard Specification For Deformed And Plain, Low-Carbon, Chromium, Steel Bars For Concrete Reinforcement. • ASTM A36/A36M-19 Standard Specification for Carbon Structural Steel • ASTM A529/A529M-19 Standard Specification for High-Strength Carbon-Manganese Steel of Structural Quality [Grades 50, 55] • ASTM A588/A588M-19 Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 Ksi [345 Mpa] Minimum Yield Point, with Atmospheric Corrosion Resistance [Grade B] • ASTM A572/A572M-18 Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel [Grades 50, 55] • ASTM A663/A663M-17 Standard Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties • ASTM A709/A709M-18 Standard Specification for Structural Steel for Bridges [Grades 36, 50] • ASTM A F1554-20 Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength [Grades 36, 55] • ASTM A29/A29M 2020 Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought [Grades 1006, 1008, 1010, 1012, 1015, 1018, 1022, 1045, 1527, 1527 FG, 4140] • CSA G40.20-13/G40.21-13 (R2018) General Requirements for rolled or welded structural quality steel / Structural quality steel [Grades 44W, 50W, 55W]