Super Duplex 2507 nut with high chromium molybdenum and nitrogen levels

Higher chromium, molybdenum and nitrogen content results in a Pitting Resistance Equivalent Number (PREN) > 40, providing superior pitting and crevice corrosion capabilities to austenitic and duplex stainless steels in virtually all corrosive media, and critical pitting temperature Above 50¡ãC .

It is widely used in offshore oil and gas exploration/production and in heat exchangers in petrochemical/chemical processing.

2205 duplex grade without requiring higher levels of nickel or molybdenum. This means that it is a low-cost option than most austenitic stainless steel having the same requirements.

Duplex 2205 fasteners are made from standard duplex materials. The material consists of carbon, manganese, silicon, phosphorus, 21% chromium, 2.5% molybdenum, 4.5% nickel and nitrogen.

The S31803 fastener series demonstrates the properties of ferritic and austenitic stainless steels. These fasteners exhibit excellent resistance to crevice corrosion, stress corrosion cracking and pitting corrosion in harsh environments. In addition, these are excellent in resistance to chloride and sulfide stress corrosion environments.

The presence of ferrite in the duplex 2205 welded pipe is what provides for an enhanced performance of this stainless steel grade in caustic media containing environments.
Type “Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size “OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”

Duplex2205 washers are dual phase austentic-ferritic duplex fasteners manufactured from alloy containing chromium, nickel alloy and molybdenum with restricted carbon content and minimum PREN35, SAF2205 fasteners have excellent corrosion resistance and high strength.

Due to the excellent physical and mechanical properties of Super Duplex, the quality of Super Duplex steel fasteners can meet the high demands of the gas, oil and marine industries.

Duplex 1.4462 round bars also have low thermal expansion and high thermal conductivity as well as high corrosion and erosion fatigue properties compared to austenite. The corrosion resistance of duplex 2205 is almost twice that of other austenitic stainless steels.

These plates combine desirable properties of austenitic and ferritic grades.

Austenitic has a low strength and a low resistance to stress corrosion cracking, while ferritic also has a low strength, poor weldability and poor low temperature toughness. Producing a chemical composition that combines austenitic and ferritic results in a metal that has a higher strength, good weldability, good toughness and resistance to stress corrosion cracking.
Type “Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size “OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”

Some of the typical applications of duplex steel grade 2205 are oil and gas exploration, processing equipment, transport, storage and chemical process, high chloride and marine environments, paper machines, liquor tanks, pulp, and paper digesters.

Due to the alloy’s strong resistance to chemical compositions including acids, bases and neutral solutions, duplex steel uns s31803 nuts would be an ideal addition to these industries.

The equivalent proportions of their existence make it possible for the alloy to express qualities reminiscent of each steel type. Take austenitic steels, where the most basic grade, like 790 steel duplex pipe, has substantial corrosion resistance properties.

The microstructure of ASME SA 479 Duplex Steel UNS S32205 Flat Washers includes a combination of ferritic and austenitic phases. ASTM A479 Duplex Steel UNS S31803 Gaskets have excellent general corrosion resistance in a variety of aggressive chemicals including industrial and seawater acids. Buy duplex stainless steel washers from us at leading market prices.

Duplex 2507 has high resistance to chloride stress corrosion cracking, high Strength, and superior resistance to chloride pitting and crevice corrosion.

Due to the material composition, the strength and the corrosion resistance, these flanges are used in a variety of applications.

In order to convey the pipeline, it is necessary to remove the straight hose in the pipeline. When using various pipelines, various pipelines must be used. When the pipeline is used, the elbow must be used to change the size of the pipeline. When bifurcating, the three-way pipe The flange connection used when the joint is used with various pipe joints, in order to reach the long-distance transmission pipeline, in order to reach the thermal expansion and cold contraction joint or effective connection aging of the pipeline, the long-distance expansion and cold contraction joint is used for the connection of the pipeline. , In the connection of various instruments, there are also the connectors and plugs of the instrument phase.

The chemistry of this steel ensures better performance with higher mechanical properties in comparison to austenitic stainless steel pipes.

We are suppliers of WNR 1.4410 Super Duplex Steel Weld Neck Flanges with matching stub-ends that withstand alkalis under higher temperatures.

Super Duplex 2507 (F53 / 1.4410 / UNS S32750) has excellent corrosion resistance to a variety of media, and has excellent resistance to pitting and crevice corrosion in seawater and other chloride-containing environments, with a critical pitting temperature exceeding 50¡ãC.

The yield strength of 2205 is about twice that of austenitic stainless steel. This allows designers to reduce weight and make the alloy more cost-competitive compared to 316L or 317L.

ASTM A182 F51 equates to UNS S31803. This was the original caption for a 22% Cr duplex stainless steel.

The material of the super duplex S32750 sheet has increased tensile strength and yield strength. Super Duplex Steel UNS S32750 plate has good ductility and toughness. AISI S32750 plate has good corrosion resistance compared to Duplex. The material of the super duplex steel S32750 plate has higher corrosion resistance.

“Duplex” describes a family of stainless steels that are neither fully austenitic (like 304 stainless steel) nor pure ferritic (like 430 stainless steel). The structure of the S31803 duplex stainless steel consists of a pool of austenite surrounded by a continuous ferrite phase.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.63

It accounts for around 80% of overall duplex stainless steel production.

Duplex is often found in desalination and pressure vessel equipment located in port cities.

Application fields of duplex stainless steel:
¡¤ Pressure vessels, high-pressure storage tanks, high-pressure pipelines, heat exchangers (chemical processing industry).
¡¤ Oil and gas pipelines, heat exchanger fittings.
¡¤ Sewage treatment system.

Duplex steel UNS S32205 fasteners are used in the pulp and paper industry such as digesters, bleach plants and stock handling systems. Also known as WNR 1.4462 fasteners, they are developed and designed in our infrastructure to international quality standards to the highest quality standards.

ASTM A182 F53 Super Duplex Flanges available with rating class of 150#, 300#, 400#, 600#, 900# and 1500# in sizes NPS 1/2 to 24.

The 2205 was developed to provide excellent machinability. Control of composition and inclusion type improves chip formation and reduces tool wear, resulting in higher machining efficiency and lower tool costs.

The duplex steels are one type of stainless steels that have ferritic and austenitic phases in their metallurgic microstructure.