S620QL1 EN 10025-6 high strength steel quality supplier

The cold working performance of S620QL1 EN 10025-6 high strength steel and so on steel structure engineering steel is good, which can ensure that the steel will not crack or brittle fracture during high-temperature processing, and will not have a great impact on strength, plasticity and toughness due to processing. The durability of S620QL1 EN 10025-6 high strength steel and so on steel structure engineering steel is good. Durability refers to the service life of steel structure. The main factor affecting the service life of steel is the poor corrosion resistance of steel, followed by the deterioration of mechanical properties of steel under long-term load, repeated load and dynamic load.

The riser is an indispensable equipment in the development of offshore oil and gas resources, mainly for drilling, conducting liquid, conducting mud and transporting oil and gas. Because steel catenary risers face complex service conditions such as surges, seabed clay, and ice loads, they need to have high fatigue strength, large plastic deformation capacity, and excellent fracture toughness. At present, China's first self-developed and designed 6-inch steel catenary riser was successfully laid on August 18 this year in the first deep-water self-operated large gas field Lingshui 17-2 project.

SA283 gr C plate belongs to American standard carbon structural steel plate. SA283 steel plate can be divided into four grades according to its structure quality: SA283 gr A, SA283 gr B, SA283 gr C and SA283 gr D.Delivery status of S620QL1 EN 10025-6 high strength steel, SA283 gr C steel plate: hot rolling, controlled rolling and normalizing.Smelting method of SA283 gr C steel plate: SA283 gr C steel shall be manufactured by one or more of the following processes: open hearth, basic oxygen converter, or electric furnace.