A182 F51 2205 S31803 flange ring SA 182 f51 flanges

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.

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.

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 .

DIN 933 technically ranges from M1. 6 to M52, whereas ISO 4017 ranges from M1. 6 to M64. Secondly, that’s it really, the DIN 933 and ISO 4017 standards are the exact same with the exception of M10, M12, M14 and M22.

The high chromium, molybdenum and nitrogen content of 2205 provides better corrosion resistance than common stainless steels such as 316L and 317L in most 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.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.54

Duplex bolts S31803 are widely used in several industries due to the enhanced strength transferred from the structural austenitic portion. In contrast, the ferritic fraction instills superior toughness from the transport of the fine structure. UNS S31803 Fasteners with excellent mechanical properties can become a buyer’s favorite by pre-reducing the cross-section of the final product, thereby reducing the overall weight, thus lowering the overall price.

Alloy 32750 is a super duplex stainless steel supplied in hot worked and solution annealed conditions.

Our duplex steel UNS S31803 fasteners are available in different grades such as industrial washers, industrial screws, stainless steel washers, stainless steel screws and more.

Duplex stainless steel 2205 alloy is a compound stainless steel composed of 22% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy.
It has high strength, good impact toughness and good overall and local stress corrosion resistance.

The material is also resistant to chloride stress corrosion cracking, to erosion corrosion, to corrosion fatigue, to general corrosion in acids. This alloy has good weldability and very high mechanical strength.

Super Duplex Stainless Steel is known to have better stress corrosion, cracking resistance and mechanical properties than any other type of steel.
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 2205 duplex stainless steel pipe also demonstrates good fatigue strength, as well as outstanding resistance to stress related corrosion cracking, crevice corrosion, pitting, erosion corrosion, and general corrosion in severe 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.”

The corrosion resistance properties of Duplex 2205 Pipe is much better as compared to alloy grade 316.

Duplex Steel Pipe is a metal alloy pipes that is made out of steel with different alloying elements. The name comes from the dual nature of the material.
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 fatigue strength of S31803 nuts is also very good under all extreme conditions. Duplex stainless steel UNS S31803 nuts also have good fatigue strength and excellent resistance to stress corrosion cracking, cracking, pitting, erosion, etc.

Stainless Steel Duplex SAF 2205 Hex Bolts are used in machinery and construction and can be used with nuts or threaded holes. Since they can be tightened with a wrench, fully threaded hex bolts are specially designed to work more efficiently. Additionally, 2205 hex bolts are stronger than standard stainless steel, meaning they can be used for jobs that require high workloads and good corrosion resistance.

Duplex is a metal that is made of a two-phase microstructure consisting of austenitic stainless steel and ferritic structures.

Duplex Stainless Steel offers excellent resistance to corrosion along with very high mechanical strength, which allows for lighter fabrication and greater design flexibility. With this high corrosion resistance, Duplex Stainless Steel provides more uptime than Carbon Steel or conventional Stainless Steel.
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 raised face allows for the flange to have more bolt holes and connection surface while the welded neck grips the pipe in place. The applications are oil and gas, petroleum, petrochemical and other industrial applications.

The yield strength of duplex stainless steel is twice that of austenitic stainless steel. This feature allows designers to reduce weight when designing products, making this alloy more cost-effective than 316, 317L.

It reaches the phase balance of austenite and ferrite in roughly same volume fraction.

Duplex2507 thread rod are dual phase austentic-ferritic duplex fasteners manufactured from alloy containing chromium, nickel and molybdenum with restricted carbon content and minimum PREN42. SAF2507 thread rod have high strength, resistance to pitting, stress corrosioni cracking, erosion and corrosion fatigue, crevice corrosion resistance.

Various Duplex Pipe suppliers, stockist, distributors, exporters, importers, dealers, and stockholders procure the material good deal from Aesteiron and supply in their own countries with high margin, so always buy directly from us in China to get the best price.
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.”

ASTM A479 Super Duplex 2507 Hex Bolts combines high strength and good ductility with outstanding corrosion resistance qualities. The higher chromium, molybdenum and nitrogen contents in these ASME SA 479 Alloy 2507 Hex Bolts result in a Pitting Resistance Equivalent number (PREN) of >40.

Duplex 2205 bolts are among the most commonly used duplex grades. These are called standard duplex steel fasteners. There are different types of fasteners such as studs, bolts, nuts, screws, etc. Duplex stainless steel fasteners are used in chemical processing, transportation, storage, oil and gas, marine, paper and pulp, wine and many other industries. A wider range of applications is possible due to the combination of corrosion resistance, high temperature capability and high pressure resistance of Duplex Steel 2205 Nuts and Bolts.

The machinability of 2205 steel pipe is low due to its high strength. The cutting speeds are almost 20% lower than that of grade 304.
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.”

Although when the 2205 duplex stainless tubing material has been exposed to temperatures above 572¡ãF, even when the exposure is for a short period of time, the duplex 2205 seamless tube is subject to embrittlement.
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 applications of the flanges include petroleum, petrochemical, oil and gas and other high performing piping systems.

ASTM A815 GR S32750 tee is used to merge or split fluid streams.

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

Though it is important to keep in mind that pitting corrosion can be a concern in chloride solutions when oxidizing media is present. In these conditions, the passive (protective) layer of the Duplex 2205 material may be compromised in localized pitting may occur.

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.

Duplex 2205 bolts (EN 1.4462) are made from an austenitic-ferritic stainless steel, which was designed to deliver higher strength and corrosion resistance than 300 series stainless steels. It helps users to avoid stress corrosion cracking that is typically seen with 316 and 317. Duplex 2205 bolts combine the qualities of stress corrosion cracking resistance and high strength derived from being a ferritic alloy along with its austenitic fabrication capabilities.