Our company's A573 Gr 70 steel sheet power boilers, heating furnaces of double bars, double high lines and medium and thick plates all adopt heat storage technology, which can fully use blast furnace gas; the ladle baking, Maerz active lime kiln and medium and thick plate heat treatment furnace all burn converter gas, which can improve the A573 Gr 70 steel sheet utilization rate of secondary energy and realize negative energy steelmaking in steelmaking process.
Steel strip is a branch of steel plate. Steel strip is a kind of narrow and long steel plate, also known as strip steel, A573 Gr 70 steel sheet produced by various steel rolling enterprises to meet the needs of different industrial departments and industrial production of various metal or mechanical products. The width of steel strip is within 1300mm, and the length is slightly different according to the size of each roll. Generally, A573 Gr 70 steel sheet steel strip is supplied in coils, with the advantages of high dimensional accuracy, good surface quality, easy processing and material saving. The steel strip is a kind of steel with large output, wide use and many varieties.
Non-destructive flaw detection of steel plates is a test method for inspecting the A573 Gr 70 steel sheet surface and internal quality of the inspected parts without damaging the working state of the workpiece or raw materials. Commonly used A573 Gr 70 steel sheet steel plate flaw detection methods include: X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetration flaw detection, eddy current flaw detection, gamma-ray flaw detection, fluorescent flaw detection, color flaw detection and other methods. Physical flaw detection is non-destructive flaw detection without any chemical changes.
A514gr.F high yield strength structural quality steel chemical composition%C: 0.10-0.20, Si: 0.15-0.35, Mn: 0.60-1.00, P max.: 0.035, S max.: 0.035, Ni: 0.70-1.00, Cr: 0.40-0.65, Mo: 0.15-0.25, V: 0.03-0.08, Cu: 0.15-0.50, B: 0.001-0.005The mechanical properties in the plate thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥, %: 18
