duplex steel S31803-S32205 wn flange pn16

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.

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.

For many applications where 300 series stainless steel is susceptible to chloride stress corrosion cracking, 2205 duplex stainless steel is a cost-effective solution. Stress corrosion cracking occurs when stainless steel is subjected to tensile stress while in contact with solutions containing chlorides. Elevated temperatures also increase the susceptibility of stainless steel to stress corrosion cracking.

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.

The granular structure of duplex is a ferrite-austenite hybrid with a superior strength to weight ratio in comparison to 304 or 316. It balances the weldability of an austenitic with a pure ferritic and retains decent mechanical toughness in applications with exposure to colder ambient temperatures.

Super Duplex Steel Flanges are ideal for service in severely corrosive environments such as offshore and marine applications. It is also particularly resistant to chloride SCC. Flanges provide equivalent pitting resistance, ensuring very good pitting resistance. All of our product ranges are strength tested, including pitting corrosion testing, toughness testing, chemical and mechanical testing, macro and micro testing, and more.

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.

ANSI B16.5 Duplex Stainless Steel Plate Flanges are available in pressure ratings from 150 to 2500, and the standard covers pipe nominal sizes from NPS ? to NPS 24. The duplex stainless steel flange material we manufacture meets international standards. We produce different grades of duplex steels that require different qualities to be used in different applications.

Molybdenum increases resistance to pitting and crevice corrosion. However, its content in duplex stainless steels is generally limited to less than 4% because Mo is also a ferrite former and can lead to unwanted intermetallic phases. Nitrogen improves resistance to pitting and crevice corrosion.

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.

In addition, 2205 stainless steel flanges exhibit good fatigue strength and excellent resistance to chloride-related stress corrosion cracking. Additional properties of Duplex 2205 flanges include excellent resistance to crevice corrosion, pitting corrosion, erosion corrosion and general corrosion even in harsh environments.

The applications include high corrosive applications including acidic applications due to the material composition.

Duplex is often found in desalination and pressure vessel equipment located in port cities.

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 2205 and Super Duplex 2507 stainless steel butt weld flanges feature a high yield strength that is twice the annealed yield strength of typical austenitic stainless steels such as 304 and 316 stainless steel butt weld flanges. Because of this, Duplex 2205 and Super Duplex 2507 steels are some of the most common duplex grades used for butt weld flanges, with Super Duplex 2507 butt weld flange being the more corrosion resistant grade of the two.

This alloy resists chloride environments and sulfide stress corrosion. It is also roughly double the strength of standard austentic stainless 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.

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.

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.

2205 flange has good sulfide stress corrosion resistance and high strength and good fatigue resistance.

Compared to other steels, our duplex stainless steel flanges contain more chromium and therefore have good corrosion resistance. Duplex steel slip types on flanges contain about 10% chromium. Duplex Steel Blind Flanges (BLRF) are thermally stable and have moderate strength even at high temperatures.

It accounts for around 80% of overall duplex stainless steel production.

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.

This is designed to be connected to the piping system by butt welding. It is relatively expensive due to its long neck, but is preferred for high stress applications. The neck or hub transfers stress to the bottom of the hub to the wall thickness at the butt weld, providing significant reinforcement for the flange. Flange holes match pipe holes to reduce turbulence and erosion.

Super Duplex UNS S32760 Reducing Flanges have a strengthened microstructure, a result of added Nitrogen, allowing fabrication of thin and low-weight flanges that are easy on the pocket.

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 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.

This is the main reason why Super Duplex Flanges note an improvement of tensile strength over ferritic and austenitic steel grades.

The pressure capacities of the flanges can also be expressed in pressure numbers. The astm a182 f53 uns s32750 flange types come in pressure numbers ranging from PN6 through PN64.

The flanges are internally drilled to match the inside diameter of the pipe to ensure unrestricted flow and prevent turbulence at the joint. The tapered neck provides thicker metal at the flange joint, while the neck tapers to butt against the pipe and to butt against the pipe. This design helps transfer stress from the flange to the pipe and reduces stress concentrations at the bottom of the flange connection.

 ANSI B16.5 Super Duplex Stainless Steel S32750 Orifice Flange provides excellent resistance to a wide range of corrosive environments, including seawater, acidic solutions, and chloride-containing environments. Super Duplex F53 WN Flange exhibits higher corrosion resistance than standard duplex stainless steels.