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Magnetic particle flaw detection is only suitable for detecting surface defects, which means that by laying magnetic powder on the surface of the equipment and using its aggregate shape on the surface defects of the magnetic material equipment to determine the position, size and shape of the defect. This hardness of Q295NH weather resistant steel method has a relatively low cost and is easy for steel production enterprises to adopt in batches. However, for special steel profiles with deeper thickness, whether this method is used to detect hidden defects is yet to be verified.
A283 Gr A steel composition(%)Carbon, max 0.14Manganese, max 0.90Silicon: 0.40 0.15-0.40Phosphorus, max 0.035Sulphur, max 0.04A283 Gr A steel plate mechanical propertyTensile Strength: 45,000 -60,000 psi [310 - 415 MPa]Min. Yield Point: 24,000psi [165 MPa]Elongation in 8"": 27% minElongation in 2"": 38% min
The company always adheres to the concept of green production, follows the development path of innovation, transformation and improvement, and has carried out in-depth cooperation with Zhengzhou University and other scientific research institutes, planning from a high starting point, strict standard design, and successfully implementing engineering projects With nearly 20 research and development projects, the company's production technology and equipment are at the forefront of the industry, and indicators such as environmental protection, energy consumption, cost, and resource utilization have reached the advanced level in the industry.