Advantages of CRB550 Cold Rolled Ribbed Steel
What are the advantages of CRB550 cold rolled ribbed steel? Since CRB550 is a widely used cold rolled ribbed steel in construction engineering, many customers are confused about the advantages of this type of cold rolled steel in construction. Gongyi Jindi Metallurgical Equipment Co., Ltd., is a manufacturer specializing in the production of cold rolled ribbed steel machine and cold rolled ribbed steel production line, the technical staff of the company will explain the advantages of CRB550 coldrolled ribbed steel.
1. Tensile strength (σb) > 550 MPa, elongation (δ 10) ≥ 8.0%.
2. After the cold rolling reduction, three or two crescent-shaped transverse ribs are formed on the surface, and the angle between the center line of the transverse rib and the longitudinal axis of the steel bar is 40°~60°, so its bonding and anchoring performance with concrete is good. It is far superior to HPB235 grade steel and its bond strength is 3~6 times that of HPB235 grade steel.
3. In the reinforced concrete structure, the crack width is also smaller than that of the light round steel bar, and the crack resistance is improved by more than 75% compared with the HPB235 grade steel, which significantly improves the crack state of the member and makes the crack become fine and dense.
4. The design strength of CRB550 cold rolled ribbed steel is increased by more than 70% compared with HPB235 grade steel. And is Significant savings in steel and cement consumption.
5, Cold rolled ribbed steel bar has a good anti-fatigue performance. After considering some possible adverse factors, taking 95% of the guarantee rate, meeting the 2 million fatigue times, the stress amplitude of the cold rolled ribbed steel is still up to 200MPa.
The advantages of CRB550 cold rolled ribbed steel are the above five points. If you are interested in cold rolled ribbed steel machine and cold rolled ribbed steel production line that can produce CRB550 cold rolled steel, you can visit Gongyi Jindi Metallurgical Equipment Co., Ltd. website www.jindimachine.com or call: 13674996266,0371-64388822 to consult and negotiate with us!
Tel: 86+13674996266, 86+37164388822