A SA182 duplex steel orifice plate flange dn25 pn10

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.

We are one of the largest producers of duplex steel sliding flanges with good fatigue strength and high corrosion resistance. 2205 Duplex Steel Blind Flange is also known for its various mechanical properties, such as excellent resistance to cracking, pitting, and corrosion in harsh environments.

Compared with austenitic stainless steel, F51 duplex stainless steel has twice the compressive strength, and compared with 316L and 317L, the designer can reduce its weight.

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.

Other applications for 2205 flanges include use in marine and other high chloride environments, biofuel plants, pulp and paper industry – digesters, bleaching equipment, stock handling systems, and food processing equipment. Major industries using these Duplex 2205 flanges include asphalt upgrading plants, nuclear power (mostly seamless), heavy oil refineries, and petrochemicals and acids.

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.

These high-strength flanges securely seal a range of plumbing modules. The multifunctional flange shows good stability and exhibits enhanced resistance to chloride pitting in marine applications. With standard welding procedures, Super Duplex Flanges can be easily welded to different piping modules.

In addition to this standard duplex grade, there are super duplex and lean duplex grades. Flanges made of duplex steel fall under ASTM A182 F51 UNS S31803 and others. ASTM A182 specification covers components for pressure vessel grade applications. These duplex flanges can be used in high pressure and high temperature services such as boilers, condensers, heat exchangers, power plants, and petroleum industry applications.

ASTM A182 F53 Flange is a high strength flange that has 550MPa minimum yield strength and 800MPa minimum tensile strength.

Robust modules resist acid pitting in marine systems. Duplex flanges effectively connect different piping modules in the system and affect the flow of fluids or gases. This grade has higher strength and crack resistance than common austenitic grades. These flanges also have excellent ductility and can be welded in place using standard procedures.

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.

Compared to austenitic stainless steels, duplex stainless steels have higher tensile and yield strengths and significantly improved resistance to chloride SCC (stress corrosion cracking). They also exhibit higher toughness than ferritic stainless steels.

Duplex¡¯s premium mechanical and chemical properties are slightly offset by its difficulty in formability.

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 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.

The austenitic portion of this alloy is the reason why A182 Super Duplex Flanges resist pitting, crevice, and general corrosion. Typically organic acids such as acetic and formic acids cause uniform corrosion in many steel alloys. Molybdenum, which contains a high chromium content, makes UNS S32750 butt weld flanges resistant to corrosion in environments containing these acids.

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.

Some dual-phase steel S31803 butt weld flanges have good oxidation resistance at high temperatures, but tend to become brittle at temperatures above 300 degrees Celsius, and only 2 hours exposure to 475 degrees Celsius. 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.

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.

This means that it derives its superior ductility and corrosion resistance from the austenite in the alloy, and the Werkstoff No 1.4462 BLRF flange has higher strength and hardness, both of which are ferritic part.

Duplex S31803 butt weld flanges combine good mechanical strength and ductility with moderate to good corrosion resistance in a variety of environments. Duplex S31803 threaded flanges are the most widely used duplex stainless steel grade. Duplex S31803 lap joint flanges feature a high yield strength that is twice that of standard austenitic stainless steel grades.

Duplex 2205 Flat Face Flange Manufacturers recommend this stainless steel grade for industrial applications such as chemical processing, transportation and storage – pressure vessels, tanks, pipes and heat exchangers, sewage scrubbing systems, cargo holds of ships and trucks, petroleum and natural gas exploration and processing equipment – pipelines, pipes and heat exchangers.

Since duplex stainless steels have lower nickel and molybdenum content than austenitic stainless steels, they tend to have similar corrosion resistance. The lower alloy content of duplex stainless steel means lower costs. This is true, especially when alloy surcharges are high. Also, due to the higher yield strength of duplex stainless steels compared to austenitic stainless steels, it is often possible to reduce their section thicknesses. This combination can significantly reduce the cost and weight of 150 grade duplex pipe flange dimensions compared to components in austenitic stainless grades.

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

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 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.

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.

We are manufacturers of ASTM A182 Duplex UNS S32750 / S32760 Flanges show enhanced pitting corrosion resistance in saline environments, brackish waters, bleaching operations, and selected food processing applications.

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.

Duplex stainless steel is designed to combine improved resistance to stress corrosion cracking (including sulfide stress corrosion cracking), pitting, crevice corrosion and high strength when compared with other stainless alloys.