Super Duplex 2507 nut with high chromium molybdenum and nitrogen levels

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.

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

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 .

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.

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 higher percentage of chromium in the alloy of duplex stainless steel seamless pipe makes it resistant to oxidation.

Duplex 2205 fasteners are made from cost-effective, long-lasting and corrosion-resistant steel. The grade of steel used to make fasteners can be ferritic, austenitic or dual phase steel. Duplex materials have the strength qualities of ferritic steels and the corrosion-resistant qualities of austenitic steels.

The most widely used stainless steel alloy is duplex 2205. It is also known as Duplex 2205 or Duplex 2205. It has ferritic and austenitic properties, making it ideal for environments with strong corrosion resistance. Good strength is a primary requirement. Duplex 2205 studs are essentially just a piece of threaded rod, in some cases, they are all designed to accept nuts, such studs are called stud bolts. It has excellent corrosion resistance and is superior to stainless steel 316 in most environments.

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.

These grades of super duplex stainless steel fasteners are used when applications require excellent corrosion resistance and strength. Composed of nitrogen, molybdenum and chromium, they have excellent resistance to crevice corrosion and chloride pitting.

The Super Duplex 2507 Pipe is made with 25% of chromium, 4% of molybdenum, and 7% of nickel in their composition. As a result, these pipes possess superior corrosion and erosion resistance in various stress-induced environments.

UNS S32750 Super Duplex Hex Nuts has been developed at the beginning of the century to cope with the increasing demand, across many industries, for more durable steels that could withstand demanding service conditions. The versatile and extensive range of UNS S32760 Super Duplex Hex Nuts reflects the differing lifestyles in every kitchen, accompanied with the proper faucet.

Duplex 2507 is a super duplex stainless steel containing 25% chromium, 4% molybdenum and 7% nickel. This alloy is designed for applications requiring excellent strength and corrosion resistance.

Duplex 2205 has higher resistance to crevice and erosion corrosion than sus316L austenitic stainless grades.

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

The duplex structure provides 2507 with exceptional resistance to pitting and chloride stress corrosion cracking.

SA 240 UNS S32760 Sheet For ships, tanks and containers, for deployment on most surfaces around metal lattices.

The standard austenitic steels like 304 (1.4301) and ferritic steels like 430 are relatively easy to make and to fabricate. As their names imply, they consist mainly of one phase, austenite or ferrite. Although these types are fine for a wide range of applications, there are some important technical weaknesses in both types.
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.”

S32760 is a super duplex stainless steel with a ferritic-austenitic microstructure.

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 flanges shall not be used at temperatures over 600¡ãF [315¡ãC] since it may be subject to embrittlement after service at moderately elevated temperatures.

The microstructure and composition of the duplex 2205 alloy provides corrosion resistance superior to Type 316 or 317 in many environments, and its minimum yield strength is more than double that of conventional austenitic stainless steels.

ASTM A240 UNS S32760 Plate is a super duplex stainless steel alloy for specific applications.

S31803 stainless steel is a nitrogen alloy duplex stainless steel containing 22% chromium, 3% molybdenum, and 5-6% nickel. In addition to high strength and excellent impact toughness, it also has high resistance to general corrosion, localized corrosion and stress. Corrosive properties.
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 B36.61

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.

“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

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.

Super Duplex Steel 1.4410 Flanges are having low alloying costs as compared to the similar ferritic and austenitic grade along with resistant to corrosion in the chloride-containing atmosphere because of well-enhanced yielding and tensile strength.

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 material has high strength and corrosion resistance. The A182 F53 material is used to make flanges ranging from 1/2 inches to 48 inches under different standards such as ANSI, ASME, DIN and other international standards.

The 2205 Duplex Stainless Pipe produced in accordance to ASTM A790 specification could be constructed by either a seamless construction or an automatic welding process.

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.

UNS S32750 ( F53 / 1.4410 / Alloy 2507) has a lower coefficient of thermal expansion and higher thermal conductivity than austenitic steel, and is suitable for operating temperatures up to 300 ℃.

If the 22cr Duplex Pipe is to be welded, no filler metal is required to be added to the alloy during its welding process.