500MPa thread rebar, which is also known as composite rebar and A4 rebar, has a tensile strength of 6,500 and a yield strength of 5,000 kg/cm2 and is classified as hard steel. The authenticity of S500 rebar can be recognized by the sign engraved on it. The figure is as follow: ST.500

Most of the rebar manufacturing factories around the world use steels with high carbon and low ductility in the production of their products, which in this type of rolling, problems of weldability, brittleness and such cases in construction caused concern, but the alg Bonab Steel, complex by using modern technology and top experts, changes the phase of the product and transforms the crystal lattice of the rebar with a high speed of temperature reduction, and by directing the steel products to the cooling bed, the outer surface of the product becomes hard and the depths of the steel become hard. It will become soft and flexible. These changes, according to the machines and technology used in the alg bonab steel complex, with the speed of temperature reduction, increase the flexibility and strength of the rebar. These products, with their high resistance and strength, Processes such as project design and implementation have been made simpler, as a result of which the waste of resources, cost, time and energy will be avoided. This category of $50Os are free from disadvantages such as lack of weldability and low ductility and are used in the construction of reinforced concrete structures

Advantages of using A4 rebar

• Increased speed of concreting and construction (increased speed of reinforcement in construction projects)

• Reduce reinforcement in dense concrete.

• Increased resistance to erosion and corrosion.

• Principle and optimum use.

• Compatible with the environment.

• Increased strength by 25%.

• Reduction of purchasing costs, time and energy.

• Ease of design and application, which ultimately leads to optimum use of limited space.

• Reduction of rebar consumption by 30%.

Increased speed of concreting and construction (increased speed of reinforcement in construction projects)

• Reduce reinforcement in dense concrete. O Increased resistance to erosion and corrosion. Principle and optimum use. Compatible with the environment. Increased strength by 25%.

• Reduction of purchasing costs, time and energy. Ease of design and application, which ultimately leads to optimum use of limited spасе. Reduction of rebar consumption by 30%. S500 steel grade, or A4 rebar, has a surface with threads on both sides of the product with at least 18% deformation, which is according to the standards of the day of production and is known as 500 thread or compound thread, which is associated with the mass production of A4 rebar It can be provided by alg Bonab Steel Complex.