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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.

UNS S32205 Duplex Steel ASME SA182 Butt Weld Flanges are suitable for seawater and power generation equipment because their smooth surfaces can withstand temperatures up to 600¡ãF, while also having excellent flow characteristics.

ASTM A182 UNS S32750 Flanges is the most common super duplex grade that has an enhanced pitting and crevice corrosion resistance compared with the ordinary austenitic or duplex types.

These dual phase steel S32205 ring joint flanges also feature high corrosion and erosion fatigue performance as well as lower thermal expansion and higher thermal conductivity than certified. Our Duplex 2205 Socket Weld Flanges are highly resistant to pitting and crevice corrosion, perform well in most corrosive environments, and have good weldability.

These super duplex steel UNS S32760 flanges are technologically advanced using premium materials under the guidance of skilled experts. They have outstanding features such as resistance to plastic deformation, wear resistance, chipping resistance, and good machinability.

Butt weld flanges are flanges designed to be connected to piping systems by butt welding. This type of flange comes in a wide range of sizes, butt weld flanges are expensive due to their long necks and the cost of personnel to contact the WN flange with the pipe or fitting, but are preferred for high stress applications. The neck or hub transfers the stress to the pipe.

Using UNS S31803 Duplex Steel Pipe Flanges ensures high performance, higher corrosion resistance and longer service life. Due to the dual nature of austenitic and ferritic microstructures present in equal proportions, the dual phase steel RTJ flange material inherits the properties of both steels.

Super Duplex Flanges are highly weldable. This alloy can be easily welded by various welding operations. These super duplex flanges are known for their high fatigue strength and provide high strength at moderate temperatures in the lower temperature range.

Duplex steel flange also offers Good weldability and workability, High energy absorption and Low thermal expansion.

ASTM A182 F51 flanges refer to pipe flanges made from the forged duplex stainless steel grade UNS S31803 for use in pressure systems.

The 21% chromium content is the key to extreme corrosion resistance and strength of the SA 182 f51 flanges. HT PIPE is a leading supplier and manufacturer of the flanges in various scales, shapes and types.

The combination of chromium, molybdenum and nitrogen gives 2205 good resistance to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. 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, and Citizen Metals has been actively involved in ensuring the best possible quality for our customers.

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 Steel consists of a two-phase microstructure of ferrite and austenite. When it comes to the chemical composition of 2205 duplex steel flanges, they mainly contain 22% chromium, 3% molybdenum and 5-6% nickel in the form of alloyed stainless steel.

Duplex Steel UNS S31803 Flanges are used in marine engineering, chemical processing, hydrocarbon processing, heat exchangers, valve manufacturing, pump manufacturing, petrochemical plants, nuclear power projects, oil and gas equipment manufacturing.

Super Duplex Steel Butt Weld Flanges are inherently non-magnetic. Austenitic stainless steel also contains nickel, molybdenum, copper, niobium, aluminum, etc. in chemical composition. It shows similar austenite and ferrite grades.

Both austenite and ferrite are present in the microstructure of this alloy. Therefore, super duplex flanges have similar properties to these two stainless steels. These components have excellent performance in applications exposed to chlorine solutions.

As with all stainless steel grades, the corrosion resistance of a metal or alloy depends primarily on the composition of the metal, in this case stainless steel. For resistance to chloride pitting and crevice corrosion, the content of elements such as chromium, molybdenum and nitrogen is considered to be the most important.

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.

The duplex structure results in improved stress-corrosion cracking resistance, compared with the austenitic stainless steels, and improved toughness and ductility, compared with the ferritic stainless steels.

Double butt weld flanges are best suited for hazardous high pressure applications. Butt weld flanges are easily identified by their long tapered neck.

Each different type has its own advantages. Different grades of duplex steel have different mechanical and physical properties due to different chemical compositions. ASTM A182 F60 flanges are high performance, cost effective and long life flanges. There are different face types such as ring joint flanges, flat face flanges and raised face flanges.

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 welding flanges are drilled (machined), and the wall thickness of the flange is the same size as the matching pipe. The lighter the tube, the larger the diameter, and conversely, the heavier the tube, the smaller the diameter. Our range of butt weld flanges, butt weld flanges are typically used for high pressure, low temperature or high temperature.

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.

ASTM A182 Grade F51 is the standard duplex stainless steel and is also called ¡°duplex 2205¡± or ¡°alloy 2205¡±.

There are SA 182 F53 S32750 Blind Flanges, socket weld flanges and weld neck flanges in this range of material. The different flanges are used in different applications set ups.

Duplex steel sliding raised face flanges have high corrosion resistance in chloride-containing media, including seawater, making this grade ideal for deepwater umbilicals and a range of other oil and gas applications.

Due to its high content in this alloyed stainless steel, this grade is also known as 22 Cr duplex steel. Duplex Stainless Steel 2205 Flange SORF is the most widely used category of stainless steel grades. A typical feature of 22 Cr duplex steel plate flanges is high yield strength. In fact, the tensile strength of this special grade is often double or twice that of standard austenitic stainless grades.

Super Duplex 2507, UNS S32750, is a duplex stainless steel especially suitable for environments such as warm chlorinated seawater and acidic chlorinated media. It has similar properties to Duplex 2205 but is more corrosion resistant and performs well in moderately corrosive environments.

Use of duplex and super duplex stainless steels should be limited to below 570¡ãF, as prolonged exposure to high temperatures can make the material brittle.

Butt welding flanges are drilled (machined), and the wall thickness of the flange is the same size as the matching pipe. The lighter the tube, the larger the diameter, and conversely, the heavier the tube, the smaller the diameter. Our range of butt weld flanges, butt weld flanges are typically used for high pressure, low temperature or high temperature.