Yesterday, the 2 million-ton hydrocracking project of Sinopec Qingdao Refinery & Chemical Co., Ltd. (Qingdao Refining & Chemicals) held a groundbreaking ceremony in the development zone. The total investment of the project is 1.16 billion yuan, which will be put into production in September 2012.
It is reported that this project is a set of equipment that Qingdao Refinery and Chemical Co., Ltd. has unified and deployed in accordance with Sinopec's diesel quality upgrade. After the project is put into production, all refined oil reaches the Euro III and Euro IV standards, and some diesel products meet the Euro V standard.
Qingdao Refining & Chemical Co., Ltd. is a large-scale petrochemical company jointly invested and established by Sinopec, Shandong Province and Qingdao City. It can annually produce 7.08 million tons of gasoline, coal, diesel, benzene, benzene and other chemical products. Ton. Its major oil refining project is the first single-series 10 million-ton oil-refining project approved by the state. In 2010, the company processed 10.1 million tons of imported crude oil, achieved sales revenue of over 50 billion yuan, and realized profits of 10.3 billion yuan for the country and The local tax revenue is 8.6 billion yuan, ranking first in Qingdao and fourth in the province.
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
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