Duplex Steel Flanges

To be able to form a piping system, pumps, pipes, valves and various other equipment are connected together by so-called flanges. These flanges are almost always threaded or welded. Flanges are great because they can be easily inspected, cleaned, or any desired modification.

UNS S32205 ASTM A182 flanges have good resistance to chloride pitting and crevice corrosion due to a combination of chromium, molybdenum and nitrogen. The exotic duplex 2205 flange alloy is used in oil and gas exploration, this alloy is also used in the chemical processing sector.

2205 is the most widely used duplex stainless steel, accounting for more than 80% of the duplex stainless steel market. Alloy 2205 offers better corrosion resistance in a variety of environments where 316L is typically used, with the added benefit of higher yield strength.

All 2205 alloys are metallographically inspected to ensure that products shipped are free of harmful phases such as sigma. It is usually used in the form of welded pipes or tubular parts. The alloy is also used as formed and welded sheet products in environments that are resistant to general corrosion and chloride stress corrosion cracking.

Duplex steel flanges are hardened alloys that are also very corrosion resistant. The microstructure of this steel consists of a mixture of ferrite and austenite phases. Therefore, they have the characteristics of both ferritic and austenitic stainless steels.

It has high strength and excellent corrosion resistance. Duplex stainless steel flanges have excellent intergranular corrosion. It has excellent resistance to corrosion cracking stress even in sulfide and chloride environments.

At this temperature, duplex steel flanges over 300 degrees Celsius are still protected from embrittlement due to corrosion. Duct capability is also excellent at low temperatures. Fabrication is done only with tools assigned to stainless steel materials. Must be properly cleaned before use. This is done to protect the stainless steel from cross-contamination of the corroding metal.

These flanges can be hardened by heat treatment. The application industries of duplex steel flanges are; they are used in offshore oil drilling companies, aircraft exhaust manifolds, petrochemicals, power generation, gas processing, pharmaceuticals, specialty chemicals, burner pipes and spiral welded pipes for fuels, pharmaceutical equipment, Heat exchangers, and seawater equipment. Duplex steel flanges are available in a variety of designs such as sleeve, butt weld, blind, threaded, lap joint and socket weld.

Duplex stainless steel flanges, these flanges have some excellent properties such as light weight, robust construction, accurate dimensions and more. We also offer these products in different grades such as Duplex Flanges, Duplex Flanges, Super Duplex Flanges and Super Duplex Flanges.

Duplex 2205 flanges are made of dual nature steel with austenitic and ferritic microstructures. The material is resistant to chloride stress corrosion. It is used in corrosive environments. 2205 flanges are available in grades from 150 to 2500 and PN6 to PN64.

Duplex 2205 flanges are made from austenitic-ferritic stainless steel and are designed to provide higher strength and corrosion resistance than 300 series stainless steel. It helps users avoid stress corrosion cracking common to 316 and 317. Duplex 2205 flanges combine the stress corrosion cracking resistance and high strength of ferritic alloys with austenitic fabrication capabilities.

ASTM A182 Duplex S31803 Slip Flange for high pressure vessels and high pressure applications. The operating temperature range is up to 150 degrees Celsius in chloride-rich environments. This material grade is available with welded flanges, bolted flanges and threaded flanges.

Duplex 2205 was tested under reverse bending stress at room temperature compared to SS316. The results show that Duplex 2205 has approximately twice the fatigue limit/yield strength.

To increase the connection surface, dual phase steel S31803/S32205 RTJ flanges are used. It is applied in pairs in two halves. We also offer other types such as 2205 Double Butt Weld Flanges.

Duplex 2205 flanges have a ductile to brittle transition at -50¡ãC and also become brittle at 300-1000¡ãC, so the recommended service temperature is -50¡ãC to 300¡ãC. Exposure to above 300¡ãC will not only cause embrittlement of the 2205 flange, but will also reduce corrosion resistance.

Duplex 2205 Butt Weld Flanges (WN Flanges) are easily identifiable at the long tapered hub, gradually extending from the pipe or fitting to the wall thickness. Long tapered hubs provide significant reinforcement for use in a variety of applications involving high pressure, sub-zero and/or high temperature. A smooth transition from flange thickness to pipe or fitting wall thickness is very beneficial in the case of repeated bending caused by linear expansion or other variable forces.

Corrosion Duplex 2205 flanges provide the industry with an improved stainless steel corrosion solution with good sulfide corrosion resistance and better resistance to chloride pitting and crevice corrosion than 317L.

Duplex flanges are made of a special stainless steel with austenitic and ferritic metallurgical features in its microstructure. These are magnetic steels with high corrosion resistance and work hardening.

The combination of chromium, molybdenum and nitrogen provides Duplex 2205 flanges with good chloride pitting and crevice corrosion protection, which makes them useful in marine environments, brackish water, bleach operations, closed loop water systems and some food processing applications. Although it is important to remember that pitting corrosion can be a problem in chloride solutions when oxidizing media are present. Under these conditions, the passive (protective) layer of the Duplex 2205 material may be damaged and localized pitting may occur.

Duplex 2205, UNS S32205, is a stainless steel material that derives its “duplex” name from a mixed microstructure containing roughly equal portions of ferrite and austenite. This grade is the most popular variety, and this two-phase material is a significant upgrade over 316 stainless steel in terms of yield strength and corrosion resistance.

Butt weld flanges are the most popular type of high pressure pipeline flange. The tapered hub design of butt weld flanges provides an extremely strong connection, and butt weld flanges can be manipulated and bent repeatedly without compromising material and/or connection quality . Butt weld flanges also have the advantage of being highly resistant to extreme high and low temperatures.

Weld-on flanges are available with raised, flat or RTJ faces, as well as orifice configurations. These flanges are available in all of our stainless steel and chrome molybdenum grades, from ?¡± to 36¡± and above, in grades 150 to 2500. We also stock large diameter series A B16.47 butt weld flanges in A105N and can offer series B weld necks with longer lead times. We can also source many of your other specifications.

Weld-neck flanges get their name from the flange necks that are welded to the end of a piping system. It is designed to transfer stress to the pipe, thereby reducing high stress concentrations at the bottom of the flange. Butt weld flanges cost more because of their design and engineering and the added material.

Duplex steel flanges are light in weight and perfect in size and other parameters. These are used in the manufacturing industry. In this case, stainless steel is used, so the corrosion resistance of this product is very good. Duplex blind flanges have the characteristics of high strength and are widely used in petrochemical, electric power and other industries. This needs to be used at some specific temperature as it can become brittle at high temperatures.

Duplex Steel UNS Grade S32205 Duplex Steel is resistant to chloride environments and sulfide stress corrosion. Its yield strength is approximately twice that of standard austenitic stainless grades. Duplex steel UNS S32205 flanges are extremely durable and can also be easily installed to any size thanks to the different shapes and sizes available.

S32205 is a dual-phase steel with nearly equal proportions of austenite and ferrite in its chemical composition. This combination makes the alloy stronger than standard austenitic steels. The Duplex Steel S31803 Ring Fitting Flange is a low carbon version and is immune to sensitization.

Duplex steel flanges are widely used in the used engineering, machinery and automotive industries. Duplex Steel S31803 Lap Flanges are ideal for applications requiring better corrosion resistance than Type 316 and good high temperature strength. We have Duplex Steel S31803 / S32205 Flanges in stock. Duplex steel flanges are commonly used in chemical, petrochemical, and power industries.

Long weld flanges help with high pressures and the need for a long, tapered hub is the most common use for weld neck flanges. When ordering, it is most important to specify the pipeline plan that will be used. This flange is ideal for use in environments involving extreme temperature fluctuations and excessive handling and bending.

It is needed when the neck needs to be lengthened. Duplex steel flanges act as extensions. Duplex steel flanges are used in the chemical and petroleum industries for residential and commercial buildings. Duplex steel flanges perform well under pressure levels and temperature fluctuations. Long butt weld flanges are available in various lengths, sizes and dimensions according to customer needs.

Butt weld flanges are flanges designed to be connected to piping systems by butt welding. There are many specifications of this flange. Butt weld flanges are expensive because of their longer necks and high personnel costs for WN flanges in contact with pipes or fittings, but are preferred for high stress applications. The neck or hub transfers the stress to the pipe.