ASTM A182 Duplex Stainless Steel Flanges with high resistance to pitting

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.

It is widely used in offshore oil and gas exploration/production and in heat exchangers in petrochemical/chemical processing.

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 .

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.

Applications for duplex 1.4462 coated studs are the oil and gas industry, marine industry, chemical industry, paper and pulp industry, etc. We offer Lean Duplex and Standard Duplex in a wide selection of duplex grades. Duplex 2205 studs have specific properties for different environments. The chemical composition of the duplex 2205 material has chromium, nickel and molybdenum in the composition. Duplex 2205 studs are cost-effective and lower than other duplex grades and are in high demand.

Heat and product analysis is to be performed on the SA 789 Alloy 2205 Pipe Material.

2205 flange has good general corrosion resistance, high resistance to chloride stress corrosion cracking, as well as pitting and crevice corrosion.

The UNS S32750 standard of Pipe Fittings consists of 25% chromium, 4% molybdenum, and 7% nickel. The UNS S32750 Pipe Fittings have a 50-50 microstructure of ferritic and austenitic steel grades with improved strength.

This alloy is especially useful in the -50¡ãF/+600¡ãF temperature range. For applications outside this temperature range, this alloy can also be considered, but there are some restrictions, especially when used in welded structures.

Duplex ( UNS S31803 / S32205 ) rods, also known as steel rods (ASTM A276 / ASTM A479 ), have excellent corrosion resistance. Stainless steel rods/stainless steel rods ( en 1.4462 ) are resistant to intergranular and crevice corrosion.

For 2500# in sizes from NPS 1/2 to NPS 12 ASTM A182 UNS S32750 Flanges, with requirements in both metric and U.S. A182 S32750 Flat Flanges for companies involved in Equipment Manufacturing, Oil Refineries, Mining, Chemical manufacturing and Industrial Construction.

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.

2507 (UNS S32750) is a super duplex stainless steel designed for applications which require exceptional strength and corrosion resistance. 2507 is a 25% chromium, 4% molybdenum, and 7% nickel alloy resulting in excellent resistance to chloride pitting and crevice corrosion attack.

The high oxidation resistance property of Grade 2205 is marred by its embrittlement above 300¡ãC. This embrittlement can be modified by a full solution annealing treatment. This grade performs well at temperatures below 300¡ãC.
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.”

S31803 has been supplemented by S32205 which has a higher minimum N, CR and Mo.

They are resistant to general corrosion. We are suppliers of ASME SA182 Duplex Steel UNS S32205 Weld Neck Flanges to sea water and power generation equipment.

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.
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 B36.53

2205 stainless steel sheet has high tensile stress and low thermal expansion and can be used in cargo holds, trucks and ships as sheet.

Super Duplex Stainless Steel 1.4410 Nuts?is a super duplex stainless steel with 25 percent chromium, 4 percent molybdenum, and 7 percent nickel. High molybdenum, chromium and nitrogen content in?Super Duplex 2507 Hex Nuts?help the material withstand pitting and crevice corrosion.?

Supplied in the annealed condition, it has a yield strength of 80ksi (550Mpa), which is higher than most austenitic and duplex grades.

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.

ASTM A815 GR S32750 tee is used to merge or split fluid streams.

Super Duplex Steel have the benefit as it counterpart ¨C it has lower alloying costs when compared with austenitic grades and ferritic.

UNS S32205 Hex Bolts (also known as S31803) are made of high grade duplex 2205 stainless steel. Because this material is composed of at least 22% chromium, 6% nickel, and 3% molybdenum, it can withstand some of the harsh environmental conditions that other metals cannot, such as corrosion, cracking, erosion, pitting, and more. Stainless Duplex 2205 Hex Bolts also provide twice the mechanical strength compared to standard stainless steel.

This category of material includes grades 2205, F51, F53, and F60. Duplex stainless has increased in popularity over the years due to its excellent chemical and mechanical properties versus their basic stainless counterparts, given especially that the cost differences are minimal now as the availability has increased.

S32760 super duplex stainless steel is more resistant to pitting and crevice corrosion than regular austenitic or duplex stainless steels and is suitable for use in corrosive environments. This is due to higher additions of chromium, molybdenum and nitrogen.

Duplex 2205 alloy is composed of high chromium and low or moderate nickel conutenut.

Zeron 100 is highly resistant to corrosion in a wide range of organic and inorganic acids. The copper content gives excellent resistance to corrosion in many oxidising acids. This alloy is also highly resistant to strong alkalis.

Duplex variety stainless steels work well in those applications which contain a high concentration of chlorine. Chloride ions, which are normally detrimental to conventional stainless steels, do not cause any damage to the much stronger Duplex Stainless Steel Pipe. The chemistry of this steel ensures better performance with higher mechanical properties in comparison to austenitic stainless steel pipes.
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.”

Duplex stainless steel offers excellent resistance to corrosion and very high mechanical strength. The high corrosion resistance of duplex stainless steel ensures significantly more uptime than carbon steels and conventional stainless steels, while the mechanical strength allows for lighter constructions, a more compact system design and less welding.
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.”

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

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.

It is a super duplex alloy, so heat resistance is also what Super Duplex 2507 rods are capable of. River or sea water often contains highly corrosive chemicals containing sulfur or chloride ions, and materials such as the 2507 Super Duplex Round Bar can withstand these chemicals.

2507 has Combination of properties given by austenitic and ferritic structure, and Good weldability and workability.