Haohua Industrysupplies 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:
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.
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According to reports, with the approval of the Hainan Provincial Housing and Construction Department and the Provincial Civil Affairs Department, Hainan Province and other provinces and cities in Qiong are engaged in research and development, manufacturing, sales, construction, installation, leasing, testing, education and training of related enterprises and institutions in construction machinery. We are committed to formulating the development plan for the construction machinery industry in our province and strengthening the operation and management of construction machinery.
According to the reporter of the China Construction Machinery Business Network, the Hainan Construction Machinery Association is a research and development, manufacturing, sales, and construction of construction machinery in Qiong (mainly referring to the operation of concrete conveying equipment, vertical transportation equipment such as tower cranes, and steel body processing equipment. Non-profit social organizations that are voluntarily formed by enterprises, institutions, and professionals involved in the operation, installation, leasing, maintenance, testing, education, training, and labor services.
The association is mainly focused on the upstream and downstream industrial chain of construction machinery and services related to the construction machinery business to guide the healthy development and innovation of the industry. At the same time, in order to improve the operational level of Hainan's construction machinery, the association will organize and coordinate the research activities of the member units to carry out the construction machinery operation theory and operation practice.
Duplex Stainless Steel
Duplex Stainless Steels Available
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
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
Hainan Province will strengthen the management of the safe use of construction machinery
A reporter from the China Construction Machinery Business Network recently learned from the Hainan Provincial Association of Construction Machinery, which was set up in a lever, that Hainan Province will comprehensively strengthen the safety management and use of construction machinery at various construction sites to promote self-regulation and healthy development of the construction machinery industry in the province.