The A131 AH40 offshore platform steel steel making furnace can only be used as primary refining, and the refining needs to be completed in the refining equipment outside the furnace, which is also called secondary refining. It is mainly through decarburization, desulfuration, denitrification and dephosphorization to improve the cleanness of the steel, to establish a chromium molybdenum low alloy steel with good oxidation resistance and high temperature strength, to remove unwanted harmful impurities from the steel, and to improve the A131 AH40 offshore platform steel internal quality of the steel.
After extrusion, the A131 AH40 offshore platform steel tube shall be removed for sizing. The sizing machine uses a cone-shaped bit to rotate into the steel embryo at high speed to drill holes to form steel pipes. The inner diameter of the steel pipe is determined by the outer diameter length of the drill bit of the sizing machine. After sizing, the steel pipe will enter the cooling tower and be cooled by water spray. After cooling, the steel pipe will be straightened. After straightening, the steel pipe is sent to the metal flaw detector (or hydraulic test) by the conveyor belt for internal flaw detection.
ABS AH36 ship steel plate is a structural steel with high strength for hull. Shipbuilding steel generally refers to the steel used for hull structure, which refers to the steel used to make the hull structure produced in accordance with the requirements of the classification society. This kind of product is often ordered, scheduled, and sold as special steel, ship steel plates, section steel, A131 AH40 offshore platform steel, angle steel bars, bulb flats.
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