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Cold rolled steel bar

Cold Rolled Steel Bar

Steel reinforcement bars (cold rolled steel bar)or rebars are used to improve the tensile strength of the concrete, since concrete is very weak in tension, but is strong in compression. Steel is only used as rebar because elongation of steel due to high temperatures (thermal expansion coefficient) nearly equals to that of concrete.

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Materials: Q235

Grade: CRB550

Common size: φ2mm-φ14mm

The cold steel rolled steel bar is meet to the standard BS4483,ASTM,AS/NZS 4671,DIN488,IS,etc.

Steel reinforcement bars (cold rolled steel bar)or rebars are used to improve the tensile strength of the concrete, since concrete is very weak in tension, but is strong in compression. Steel is only used as rebar because elongation of steel due to high temperatures (thermal expansion coefficient) nearly equals to that of concrete.

 

Cold-rolled steel bars, manufactured from Q235-grade steel, present a sturdy reinforcement solution available in sizes ranging from φ2mm to φ14mm. These steel bars, also known as steel reinforcement bars or rebars, conform to multiple stringent standards including BS4483, ASTM, AS/NZS 4671, DIN488, IS, among others.

 

These bars play a vital role in construction, particularly in enhancing the tensile strength of concrete structures. While concrete excels in compression, its weakness in tension is compensated by the addition of steel reinforcement bars. The integration of steel into concrete forms a synergistic bond, addressing the fundamental disparities in the material properties of concrete—where it is robust under compression but weak in tension.

 

The choice of Q235-grade steel in manufacturing these cold-rolled bars ensures durability and reliability. This grade of steel, widely recognized for its strength and malleability, meets industry standards, ensuring consistency and quality in the manufacturing process. The incorporation of CRB550-grade steel further enhances the tensile strength and reliability of these bars, ensuring they meet and even exceed stringent quality benchmarks.

 

These cold-rolled steel bars adhere strictly to various international standards, guaranteeing compliance with industry norms and specifications. Their adherence to established standards such as BS4483, ASTM, AS/NZS 4671, DIN488, and IS reflects their commitment to quality and safety, ensuring their suitability for a wide range of construction applications.

 

Moreover, the significance of using steel as reinforcement in concrete lies in its similar thermal expansion coefficient to that of concrete. This characteristic is vital as it prevents structural issues caused by differing rates of expansion and contraction during temperature fluctuations. The utilization of steel exclusively as rebar aligns with the elongation of steel due to high temperatures, offering a reliable solution that accommodates the structural demands of concrete effectively.

 

In summary, these cold-rolled steel bars, constructed from Q235-grade steel and complying with multiple international standards, offer a robust reinforcement solution for concrete structures. They not only enhance the tensile strength of concrete but also provide stability and resilience, meeting the stringent demands of construction and ensuring durability and safety within diverse applications.

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