Bridge steel plates are steel plates specially used to build railway or highway bridges. It is required to have high strength, toughness and bear the load and impact of rolling stock, and have good fatigue resistance, certain low temperature toughness and atmospheric corrosion resistance. The steel A709 Gr 50 high strength steel for tie-welding bridges should also have good welding performance and low notch sensitivity.
As one of the large professional metallurgical manufacturers in China, the strength of the brand, quality assurance, professional after-sales. Every day we are making unremitting efforts to challenge higher quality A709 Gr 50 high strength steel products and more satisfactory services. Customer demand is our pursuit, and win customer satisfaction with quality. BBN after-sales team is responsible to solve the problem of technical support and quality, service complaints.
A709 Gr 50 high strength steel surface cracks refer to the linear cracks on the surface of A709 Gr 50 high strength steel, which should generally be the same as the forging or rolling direction. Formation reason: it is mainly due to the hairline, hot crack and cold crack caused by surface over burning, decarburization, looseness, deformation and excessive internal stress during processing (forging, rolling, heat treatment, quenching and tempering), as well as the high content of sulfur and phosphorus impurities on the surface. Inspection method: A709 Gr 50 high strength steel surface cracks can be detected by naked eye observation, acid pickling, magnetic particle inspection, coloring inspection and metallographic method.
The company has superior geographical location and convenient transportation. After more than 20 years of market trials and tribulations, from small to large, from weak to strong, in order to meet the needs of customer extension development, the company expanded the deep A709 Gr 50 high strength steel processing services of cutting steel pieces. Now we have built a business system integrating steel plate, steel plate cutting and A709 Gr 50 high strength steel steel deep processing. The company provides one-stop solution for customers with lower price, higher quality and faster response speed.
