Mild steel SA633 Gr D carbon steel plate sheet VS shipbuilding steel

The steel plate for water conservancy and power generation is used for ring seat, motor support structure, ship lock gate and discharge chute volute of large water conservancy generating units; the representative steel grades are S500Q, S550Q, SA516, etc., which require flaw detection and have Z-direction performance requirements; the main specifications are thickness of 120mm, 180mm, 200mm, 215mm, 270mm, and the maximum width is 4400mm. The representative steel grades of wind power steel plates include Q345E, Q690E, SA633 Gr D carbon steel plate sheet, etc.; the main specifications are thickness of 80mm, 100mm, 110mm, 120mm, 140mm, 160mm, 180mm, 200mm, 240mm, 260mm, 280mm, 300mm, and the width is more than 2500mm.

The mooring chain is immersed in seawater for a long time and the service environment is harsh. Therefore, it must have high strength, good toughness, seawater corrosion resistance, fatigue resistance, wear resistance, etc., and in practical applications, it usually needs to be bent into a ring. Therefore, it is necessary to have good cold bending and welding performance. At present, China has successfully developed the world's first R6 mooring with the highest strength level, and realized its application, leading the development of the latest generation of marine mooring chains.

There is no weld on the outer surface of seamless steel pipe, which is the change from round steel progressive perforation to hollow round bar, with good compression resistance. According to different materials, the processed finished products SA633 Gr D carbon steel plate sheet are applicable to a wide range of fields (for example: machine gearbox gears, gear wheel axles, cams, worms, piston pins, claw clutches, high-pressure pipes and various fasteners, high-grade carburized parts, such as gears, shafts, etc.) in the medium containing nitrogen hydrogen mixture for fluid transmission. It can improve the utilization of materials.