S32750 Super Duplex Steel Strip Coil 0.3-3mm 1.4410 2507 Stainless Steel Strip

S32750 Super Duplex Steel Strip Coil 0.3-3mm 1.4410 2507 Stainless Steel Strip

Strip, Coil, Foil, Wire, ASTM A240

APPLICATIONS

Oil and gas industry equipment, off-shore platforms, heat exchangers, chemical process industry, vessels, piping, desalination plants

DESCRIPTION

Duplex Alloy 2507 is a super duplex stainless steel with 25% chromium, 4% molybdenum and 7% nickel. It has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion. The high chromium, molybdenum and nitrogen levels provide excellent resistance to pitting, crevice and general corrosion. The impact strength is also high. Duplex Alloy 2507 is not recommended for applications which require long exposures to temperatures above 570 °F because of the risk of a reduction in toughness.

Chemical Composition Requirements

The nominal composition of alloy 2507 (S32750) is 25Cr-7Ni-4Mo-N. Compared to alloy 2205 (S32205), alloy 2507 has higher chromium content, which results in increased corrosion resistance. Since chromium promotes the body-centered cubic structure of iron as a ferrite former, more nickel is necessary to promote the the formation of austenite to balance the effect of higher chromium. Higher chromium also promotes the formation of detrimental intermetallic phases, which are sensitive to 475°C embrittlement because of precipitation of the chromium-rich α’ phase, and to embrittlement by sigma, chi and other phases at higher temperatures. Alloy 2507 (S32750) also has higher nitrogen content, which not only promotes the formation of austenite and increases the strength, but also delays the formation of intermetallic phases enough to permit processing and fabrication of the duplex grade.

Specification:

Company Overview ：

The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.

The subordinate processing plant has 6 sets of medium frequency heating fully automatic thermal expansion units, 5 sets of fully automatic groove processing machines, 1 set of processing and drying integrated painting equipment imported from Germany, 1 set of streamlined anti-corrosion processing equipment and 1 set of streamlined thermal insulation processing equipment; The steel pipe can be processed, cut, hot expanded or cold drawn according to the needs, so as to fully meet the customized needs of users.

Main products :

We can supply various kinds of metal material, like carbon steel seamless pipe, alloy tube, fertilizer tube, spiral tube, ductile iron pipe, cryogenic tube, special pipe for cold storage and galvanized Steel.
Our products can be used in various applications over a wide range of industries, like chemical, petrochemical, oil and gas, pharmaceutical, food processing, power generation, aviation, marine and so on.

Sales Performance and Network :

The annual sales volume of the company is more than 300000 tons, and the sales volume has reached new highs. The company has formed a complete sales service system based on East China and facing customers all over the country. The company has a good reputation, high-quality products, strong strength, low price reputation in the country, products are deeply dependent on users. The company's products not only sell well in the domestic market, but also sell well in the United States, Canada, Colombia, the United Arab Emirates, Thailand, India, Vietnam, Pakistan, South Korea, Japan, Russia and other countries and regions, and are well received by foreign customers. The number of export countries is growing, and the sales volume is gradually increasing.