Recently, it was learned from the Xiuwen County Development and Reform Bureau that since the beginning of the year, the output of high-end products of Guizhou Xinyineng ceramsite proppant has been maintained at more than 1,500 tons per month, and is exported to the United States, Canada, the Middle East at an average price of 3,500 yuan per ton. Kazakhstan and other places. Petroleum ceramsite proppant has become a major industry in the county's export.
In recent years, Xiuwen County has used the local high-quality bauxite mineral resources to develop the ceramsite proppant industry. It has successively introduced export-oriented enterprises such as Guizhou Zhongtao, Linhai and Xinyin, which have enabled the local ceramsite proppant production technology to be continuously upgraded and made international.
Since its commissioning in 2007, the county's Guizhou Xinyineng Co., Ltd. has overcome the high-end technical problems of 100% pure raw ore powder to produce ceramsite proppant in a few years, and obtained patents on related technologies. Calcination technology Greatly improved, the product quality level has leapt to the international advanced ranks, and now it is the only company in the country that produces ceramic proppant on a large scale by whole powder.
DUPLEX STAINLESS STEEL
Duplex Stainless Steels Available
Yuhong Group supplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.
Duplex Stainless Steel Overview
Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.
Today, modern duplex stainless steels can be divided into three groups:
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507
Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like Zeron® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.
What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
Good sulfide stress corrosion resistance
Good abrasion and erosion resistance
Good fatigue resistance high energy absorption
Low thermal expansion
Good weldability
In what Applications are Duplex Stainless Steels® used ?
Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Desalination plants and seawater systems
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts
Super Duplex Stainless Steel Heat Exchanger Tube
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