What kind of steel plate is Q390B

1. Introduction to Q390B steel plate: Q390B is a low-alloy high-strength structural steel. Q390B is not only a high-strength steel, but also a low-carbon steel. Q390B has high yield strength, good fatigue resistance, high toughness and low brittle transition temperature, good cold forming performance and welding performance, good corrosion resistance, and certain wear resistance.
2. Q390B steel plate implementation standard: GB/T1591-2018.
3. Delivery status of Q390B steel plate: The steel plate is delivered in hot rolling, controlled rolling, normalizing, normalizing rolling, normalizing and tempering, thermomechanical rolling (TMCP), or thermomechanical rolling and tempering.
4. Q390B steel plate thickness direction performance: When the steel plate is required to have thickness direction performance, the symbols Z15, Z25, and Z35 representing the thickness direction performance level are added after the above-mentioned grade.
5. Q390B steel plate thickness range: low alloy steel plate can be produced in a thickness range of 8~700mm, with material performance guaranteed to 400mm; steel plates can be cut in pieces and can be cut into special-shaped parts.
6. Q390B steel plate smelting method: steel is smelted by a converter or electric furnace, and can be refined outside the furnace if necessary.
7. Q390B steel plate size, shape, weight, and allowable deviation: Q390B steel plate size, shape, weight, and allowable deviation shall comply with the provisions of the corresponding GB/T 709 standard.
8. Q390B steel plate application range: Q390B is suitable for power towers, various types of cranes, heavy-duty vehicles, oil derricks, high-temperature fans, large electric shovels, dump truck suction drills, coal mine hydraulic supports, steel structures, etc.