2205 S31803 duplex pipe Duplex 2205 stainless steel tube

ASTM A240 Type 2205 Plate is a duplex stainless steel plate that is used extensively in various industries such as chemical processing, oil and gas exploration, and marine engineering. SA 240 GR 2205 Sheet is made from grade 2205 stainless steel, which is a combination of ferritic and austenitic steel.

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

A789 UNS S31803 and UNS S32205 are two grades of duplex stainless steel that are widely used in various industrial applications. These Duplex S31803 Seamless Pipes are known for their excellent corrosion resistance, high strength, and good weldability. A789 is a specification that covers seamless and welded tubes made from duplex stainless steel.

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 .

The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion.

The UNS S32750 standard of Pipe Fittings consists of 25% chromium, 4% molybdenum, and 7% nickel. The UNS S32750 Pipe Fittings have a 50-50 microstructure of ferritic and austenitic steel grades with improved strength.

Super Duplex UNS S32750 bar has excellent resistance to stress corrosion cracking in chlorine containing environments. After heating to a solution treatment temperature of 1080¡ãC to 1120¡ãC, quenching is required.

A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.

This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.

Super Duplex 2507 is used in environments containing high levels of chlorides or dissolved oxygen, such as seawater cooling, salt evaporation, and desalination, geothermal wells.

Thread friction between the nut and bolt creates a strong, steady and even force holding the componenuts together. The most commonly used ASTM A182 UNS S32205 fastener nuts are regular hex nuts. At the same time, duplex stainless steel fasteners are strong and corrosion resistanut, combining the healthy properties of ferrite and austenite. The material also has a 90ksi minimum tensile strength and a 65ksi minimum yield strength. 2205 duplex stainless steel bolts have an elongation of 25% and a hardness of 217HBW.

The A182 Gr. F51 / S31803 material is a typical duplex stainless steel, which contains approximately 50% ferrite and 50% austenite.

The SA 182-F51 S31803 comes under ASME B16.47, B16.48 and B16.5 standards with sizes ranging from 1/8 NB to 48NB.

2507 is also used in Flue Gas Scrubbing Equipment, Pulp and Paper Mill Equipment, Offshore Oil production/technology and Oil and gas industry equipment.

Duplex stainless steels are approximately 50% ferrite and 50% austenite for optimum strength and corrosion resistance.

Duplex 2205 is a (two-phase) ferritic-austenitic stainless steel with high strength and excellenut corrosion resistance, with a maximum Brinell hardness of 290 (Rc31) in the annealed condition.

Duplex 2205 is a nitrogen enhanced duplex stainless steelthat was developed to combat common corrosion problems encountered with the 300 series stainless steels. ¡°Duplex¡± describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.
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.”

The corrosion resistance comes from the addition of alloying material, mostly the chromium content. The ASTM A790 Pipes are resistant to pitting corrosion and crevice corrosion.
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.”

It is a tee fitting with two outlets at a 90¡ã junction to the main line.

Duplex 2205 stainless steel round bars (ASTM A276/ ASTM A479) exhibit good heat resistance up to 300¡ã. SS Rod can be easily welded by most standard methods, the only mandatory requirement is the use of filler metal. Due to its high strength, machinability is low.

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.

Unlike the conventionally used austenitic 300 series stainless steels, duplex stainless steels generally have exaggerated properties. Duplex tube suppliers recommend using only this alloy as it combines both properties to produce positive results.
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 B36.55

S32760 super duplex stainless steel is more resistant to pitting and crevice corrosion than regular austenitic or duplex stainless steels and is suitable for use in corrosive environments. This is due to higher additions of chromium, molybdenum and nitrogen.

2205 fasteners are widely used in applications requiring good corrosion resistance and strength. Has excellent corrosion resistance; much higher than other grades. It eliminates localized corrosion types such as intergranular corrosion, pitting corrosion and crevice corrosion. Duplex 2205 bolts are ideal for environments containing chlorides and hydrogen sulfide for oil and gas extraction from sour wells, refineries, and chloride-contaminated process solutions.

Super Duplex stainless for e.g. alloy UNS S32750, has a mixed microstructure of both austenite as well as ferrite in an equal or 50/50 ratio.

The advantage of the dual-phase structure is that it combines the advantages of ferritic alloys (resistance to stress corrosion cracking and high strength) with the advantages of austenitic alloys (ease of manufacture and corrosion resistance). The service temperature of 2205 duplex stainless steel should be limited to below 600¡ãF. Prolonged exposure to high temperatures can make 2205 stainless steel brittle.
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 B36.67

ASTM A789 A789M Covers Grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
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.”

The advantage of the dual-phase structure is that it combines the stress corrosion cracking resistance and high strength of ferritic alloys with the ease of manufacture and corrosion resistance of austenitic stainless steel alloys.

The duplex microstructure allows this grade of high strength super duplex UNS S32750 bar to have a lower coefficient of thermal expansion and higher thermal conductivity than austenitic steels and is suitable for operating temperatures up to 300¡ãC.

S32760 was originally developed as a seawater resistant material for pump applications in the North Sea.

2507 has a higher chromium and molybdenum content which gives the super duplex greater corrosion resistance than other standard duplex grades.

A Super Duplex 2507 Pipe has outstanding resistance to corrosive and oxidative media.

Seamless pipe is not as strong as Duplex SS 2205 welded pipe, but is very dimensionally accurate. Dimensional accuracy is useful in highly sensitive applications where measurement and calculation accuracy is required.
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 B36.40

Super Duplex Stainless Steel 1.4410 Nuts?is a super duplex stainless steel with 25 percent chromium, 4 percent molybdenum, and 7 percent nickel. High molybdenum, chromium and nitrogen content in?Super Duplex 2507 Hex Nuts?help the material withstand pitting and crevice corrosion.?

We are manufacturers of ASTM A182 Duplex UNS S32750 / S32760 Flanges show enhanced pitting corrosion resistance in saline environments, brackish waters, bleaching operations, and selected food processing applications.