1.4462 1-4 in. hex nut ASME B18.2.2 duplex hex nut

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.

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.

The flange is second most used joining method after selding. Flanges are used when joints need dismantling. It provides flexibility for maintenance. Flange connects the pipe with various equipment and valves. Breakup flanges are added in the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrdlated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls are required in the selection and application of all there elements to attain a joint, which has acceptable leak tightness.
A flange is a protruded ridge, lip or rim, either external or internal, that serves to increase strength (as the flange of an iron beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera); or for stabilizing and guiding the movements of a machine or its parts (as the inside flange of a rail car or tram wheel, which keep the wheels from running off the rails). The term “flange” is also used for a kind of tool used to form flanges.

2205 duplex pipe is not recommended to be used at a temperature above 572¡ãF. Due to the presence of higher chromium, molybdenum, and nitrogen contents, 2205 duplex stainless steel tubes demonstrates superior corrosion resistant properties in comparison to the more conventionally used austenitic stainless steel grades 316 and 316L in most environments.

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.

The flange is second most used joining method after selding. Flanges are used when joints need dismantling. It provides flexibility for maintenance. Flange connects the pipe with various equipment and valves. Breakup flanges are added in the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrdlated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls are required in the selection and application of all there elements to attain a joint, which has acceptable leak tightness.
A flange is a protruded ridge, lip or rim, either external or internal, that serves to increase strength (as the flange of an iron beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera); or for stabilizing and guiding the movements of a machine or its parts (as the inside flange of a rail car or tram wheel, which keep the wheels from running off the rails). The term “flange” is also used for a kind of tool used to form flanges.

Alloy 2507 is highly resistant to carbide-related intergranular corrosion.

These plates combine desirable properties of austenitic and ferritic grades.

Duplex steels have high resistance to various types of corrosion. Duplex Steel S31803 is an extremely corrosion-resistant, work-hardenable alloy. Duplex steel S31803 butt weld flanges have good high temperature properties.

Duplex-grade stainless steel alloys have ferritic/austenitic properties, giving these materials superior strength and excellent resistance to oxidation.

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.

Alloy 2205 provides pitting and crevice corrosion resistance superior to 316L or 317L austenitic stainless steel tube in almost all corrosive media. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic.

The mechanical strength, corrosion resistance and low temperature toughness of the ASTM A182 F53 Flanges is higher than that of ordinary duplex stainless steels.

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.

Preheating of UNS S32750 Super Duplex Fasteners is not necessary except to prevent condensation on cold metal.

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.

“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

UNS S2750 Super Duplex Fasteners have good weldability and can be joined to itself or other materials by shielded metal arc welding, gas tungsten arc welding, plasma arc welding, flux cored wire or submerged arc welding.

2507 has good weldability and workability, and it’s widely used in desalination equipment, chemical process pressure vessels, piping and heat exchangers.

UNS S31803 Bolted Fasteners are used in marine, agricultural, chemical, construction, shipping, aviation, nuclear and industrial equipment.

2205 is the most widely used duplex (ferritic/austenitic) grade of stainless steel. It is used due to its excellent corrosion resistance and high strength. Over the years, many steel suppliers have made improvements to the standard duplex S31803 composition, and the resulting restricted composition range was recognized as UNS S32205 in 1996.

Las laminas duplex son grados austenitico-ferriticos con la misma composicion. Esta dise?ado para proporcionar laminas resistentes a la corrosion y de alta resistencia. Utiliza un mayor contenido de cromo hasta un 28%. La placa ASTM A240 UNS S32750 tiene un limite elastico minimo de aproximadamente 77 ksi y una resistencia a la traccion de al menos 730 MPa. Se estiro un 25% en estado recocido.

The pressure ratings of the material are designated by classes 150Lbs through 2500LBs. There are different types of the duplex f51 flanges such as the raised face, ring type joint and flat face flanges.

The ASTM A182 F51 flanges refer to standard or non-standard flanges manufactured in accordance with ASTM A182 Grade F51, which is designated with UNS number S31803.

The yield strength is also higher, allowing component designers to reduce section size for load-bearing applications.

Super duplex steel fasteners have a metallurgical microstructure consisting of a mixture of ferritic and austenitic steels in equal proportions of 50-50.

Duplex Steel S32205 bar stock is a ferritic, duplex, austenitic 3% molybdenum, 22% chromium and 5% – 6% nickel alloy stainless steel.

The combination of chromium, molybdenum and nitrogen give Duplex 2205 flanges good protection from chloride pitting and crevice corrosion, which makes them useful for marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications.

The A182 F51 material has carbon, 2% manganese, phosphorus, sulfur, 1% silicon, chromium, 4.5% nickel, 2.5% molybdenum and nitrogen it.

UNS S32750 or DIN W.Nr. 1.4410, Duplex 2507 is a super duplex stainless steel conutaining 25% chromium, 4% molybdenum and 7% nickel, designed for demanding applications requiring exceptional strength and corrosion resistance, such as chemical Process, petrochemical and seawater equipmenut.

Duplex alloys have some of the ferritic stress corrosion cracking resistance of common austenitic stainless alloys and many of the superior formability properties that are more cost effective than high nickel alloys.

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.