Description Class A500C Reinforcement is a modern thermomechanically strengthened reinforcing rolled product designed for reinforcing reinforced concrete structures. The marking "C" indicates good weldability of the material, expanding its application possibilities in construction. Production Technology The manufacturing process includes the following stages: 1. Steel Billet Preparation: Low-carbon steel with a controlled chemical composition is used. 2. Heating: The billet is heated in continuous furnaces to a temperature of 1000-1100°C. 3. Thermomechanical Treatment: Combining hot rolling processes with controlled cooling. 4. Profile Forming: Rolling through finishing stands to form a periodic profile. 5. Accelerated Cooling: Forced cooling to fix the metal structure. 6. Cutting and Straightening: Cutting to measured lengths and straightening on straightening machines. Characteristics and Assortment • Diameter Range: 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40 mm. • Mechanical Properties: o Yield strength: ≥ 500 MPa. o Tensile strength: ≥ 600 MPa. o Elongation: ≥ 14%. o Ratio σₜ/σ₀.₂: ≥ 1.08. • Mass per 1 meter: from 0.222 kg (Ø6) to 9.87 kg (Ø40). • Supply Length: 11.7 m (measured) or 6-12 m (non-measured). Advantages • Increased Strength while maintaining good plasticity. • Excellent Weldability without limitations. • Resistance to brittle fracture. • Metal Savings up to 20% compared to A400. • Improved Technological Properties. • Compliance with international quality standards. Areas of Application • Monolithic Housing Construction: foundations, columns, floors. • Precast Reinforced Concrete Production: panels, slabs, beams. • Frame Construction: load-bearing structures of buildings. • Road Construction: bridges, overpasses, flyovers. • Special Structures: tanks, bunkers, silos. • Strengthening of brickwork. Normative Documentation (GOST Standards) Main standards regulating the production of A500C reinforcement: GOST 34028-2016 – "Reinforcing rolled products for reinforced concrete structures. Technical specifications" • Defines technical requirements for A500C reinforcement. • Establishes mechanical properties and test methods. • Regulates acceptance and marking rules. GOST R 52544-2006 – "Weldable periodic profile reinforcing rolled products of classes A500C and B500C for reinforcing reinforced concrete structures" • Specialized standard for weldable reinforcement. • Defines requirements for chemical composition. • Establishes weldability parameters. Additional Normative Documents: • SP 63.13330.2018 – Concrete and reinforced concrete structures. • GOST 10922-2015 – Reinforcing welded joints. • STO ASChM 7-93 – Technical requirements for reinforcement. Chemical Composition Features: • Carbon: ≤ 0.22%. • Sulfur: ≤ 0.045%. • Phosphorus: ≤ 0.045%. • Carbon Equivalent: ≤ 0.52%.