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Stainless steel casting is stainless steel in which the metallographic structure and ferrite phase each account for about 50% of the solid solution mechanism. It not only has excellent ductility, high compressive strength and excellent resistance to fluoride corrosion, but also resists pitting, Stress corrosion resistance, especially in the chloride ion environment. Therefore, it is widely used in marine engineering.
Gulf engineering buildings face the natural standards of high temperature, low temperature and high salt. For the new Doha Airport under construction in the Persian Gulf country Iran, it will also suffer from ultraviolet light intensity, high temperature, cavitation and other hazards. The traditional building decoration materials have insufficient resistance to crevice corrosion. The construction unit initially proposed to use titanium metal to build the airport roof, but because of the difficult construction and high cost, they had to give up the use of this raw material, and then considered the use of sturdy and durable materials. Duplex stainless steel with more advantages in full life cycle time and cost.
In the end, we adopted ATI 2003 medium and high-grade duplex stainless steel, and the duplex stainless steel sheet with a capacity of more than 1,500 tons has undergone surface matte treatment to build a world-class wavy stainless steel roof! There is no doubt about the advantages of duplex stainless steel.
The Stonecutters Island Overpass in Macau, China, is designed with a service life of 120 years and is maintenance-free. About 2,000 tons of 2205 thick steel plates are used to manufacture the outer surface structure of the upper end of the bridge tower for this cross-gang expressway overpass connecting Macau and Shenzhen, and about 1,250 tons of 2205 and 316 are also used as expressway construction steel bars.
The Hong Kong-Zhuhai-Macao Bridge, the world's largest undersea tunnel with the largest overall span, was opened to traffic in October last year, and 8,200 tons of double stainless steel construction steel bars were selected, which are mainly used in the pile caps, tower bases and pier bodies of the overpass. Location.
On the other hand, due to its excellent ductility, medium and high-grade duplex stainless steel UNS 32304 has been used to build impact-resistant and fire-safe engineering buildings in deep-sea service platforms.
In gas mining, duplex stainless steel is suitable for mine production and manufacturing pipelines, spouting equipment for gas wells in oil and gas fields, water centrifugal separators, deep-sea gas pipeline system software, deep-sea cable pipelines, deep-sea deep-water well flexible pipelines and supplementary pipelines, The pipeline system software and its heat exchangers on the ground and near the sea, and the computer operating system on the river surface, etc., are especially suitable for use in the acidic and alkaline natural environment containing Cl, CO2, and H2S without corrosion inhibitors.
In the Statoil project in Denmark, 2500 tons of UR45N duplex stainless steel were selected to gradually reduce the fat of machinery and equipment; UR52N super duplex stainless steel was selected in the North Sea oilfield project in the United States to manufacture gas combined pipes and transportation pipelines; Alaska, Gulf of Mexico, etc. SAF2507 super stainless steel is selected for the production and manufacture of oil and gas wells in the local area, the service platform equipment of the water oil production plant and its gas transportation pipeline.
On the other hand, thanks to the comprehensive improvement of compressive strength and corrosion resistance due to the addition of copper, Ferralium225-SD50 duplex stainless steel has been used to produce 7000 meters deep sea machinery and equipment and utensils for cables, and also used to produce deep sea positioning Instrumentation and controllability of the subsea acoustic release out of the working pressure housing and load-bearing members of the transponder.
If you are looking for a stainless steel foundry, we hope we will be your best choice. For more information about stainless steel foundry, we are glad to answer for you.
