WPS32205 Stub End 2205 Butt-welding Pipe Fittings

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.

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

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.

The material is also resistant to chloride stress corrosion cracking, to erosion corrosion, to corrosion fatigue, to general corrosion in acids. This alloy has good weldability and very high mechanical strength.

ASTM A789 A789M Covers Grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
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 steel UNS S32205 fasteners are used in the pulp and paper industry such as digesters, bleach plants and stock handling systems. Also known as WNR 1.4462 fasteners, they are developed and designed in our infrastructure to international quality standards to the highest quality standards.

If the 22cr Duplex Pipe is to be welded, no filler metal is required to be added to the alloy during its welding process.

UNS S31803/2205 is a dual-phase steel grade with a ferritic-austenitic microstructure. The alloy consists of approximately 40-50% ferrite in the annealed condition.
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 B36.45

Duplex 2205 stainless steels are called “duplex” because they have a two-phase microstructure consisting of ferritic and austenitic stainless steel grains. When duplex stainless steel melts, it solidifies from the liquid phase to a fully ferritic structure. As the material cools to room temperature, about half of the ferrite grains transform into austenite grains (“islands”). The result is a microstructure of approximately 50% austenite and 50% ferrite.

Duplex 2205 nuts and nuts are widely used in applications requiring good corrosion resistance and strength in marine and harsh environmenuts.

Alloy 32750 is a super duplex stainless steel supplied in hot worked and solution annealed conditions.

The fatigue strength of S31803 nuts is also very good under all extreme conditions. Duplex stainless steel UNS S31803 nuts also have good fatigue strength and excellent resistance to stress corrosion cracking, cracking, pitting, erosion, etc.

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

In comparison to SS316, Duplex 2205 has been tested under reverse bending stresses at room temperature. The results show that the fatigue limit/yield strength is about twice as high for Duplex 2205.

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.

Duplex steel alloys have the properties of austenitic and ferritic stainless steels. This is because they have nearly equal proportions of dual microstructural phases (austenite and ferrite) in the annealed condition.

UNS31803 has been supplemented by S32205 (F60) which dual conforms to S31803 but has a higher minimum N, MO, NI and Cr which guarantees a better corrosion resistance.

The standard duplex material consists of 22% chromium, 4.5% nickel, 3% molybdenum, manganese, silicon, nitrogen, phosphorus, carbon and sulfur. Duplex 2205 screws and other fasteners have minimum yield strengths up to 97ksi and minimum tensile strengths up to 131ksi. Duplex 2205 hex bolts are nearly twice as strong as austenitic grade steel bolts. They have higher mechanical properties, so 1.4462 alloy 2205 studs and other types of bolts can meet different specifications such as ASME SA 182, 240, 479, 789.

DIN 933 technically ranges from M1. 6 to M52, whereas ISO 4017 ranges from M1. 6 to M64. Secondly, that’s it really, the DIN 933 and ISO 4017 standards are the exact same with the exception of M10, M12, M14 and M22.

Duplex pipes are stainless pipes containing the high amount of chromium and minimum amount of nickel. Duplex pipes provide great strength and resistance to corrosive environments. Duplex pipes are used in desalination plants, heat exchangers, and marine processes.
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 inclusion of chromium imparts good corrosion resistance to austenitic grade 304. However, increasing the chromium content to about 25%, as in the case of 2205 duplex stainless steel pipe makes the alloy resilient across several media.
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.”

Super Duplex S32760 Bar proves to be an excellent replacement for austenitic grades in marine environments. Super Duplex S32760 round bar (ASTM A276/ ASTM A479) exhibits good heat resistance up to 300¡ã.

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 UNS S32750 /F53 Flanges are made from a super duplex stainless steel grade that has 24% chromium, 3% molybdenum, 6% nickel and carbon, manganese, silicon, sulfur, phosphorus, nitrogen and iron in the composition.

Its impact strength or hardness properties inherited from the ferritic side make 2507 stainless steel round bar suitable for structural applications including bridge construction and more.

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

Super Duplex Stainless steels, which combine high strength and excellent corrosion resistance in many environments, have found applications in chemical and process industries.

Some steels also contain the alloy elements such as Mo, Cu, Nb, Ti and N, etc. Compared with ferritic stainless, duplex stainless steel has higher plasticity, ductility and better intergranular corrosion resistance and weldability.
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.”

While Duplex 2205 is the most common duplex product we supply, we can also deliver Duplex 2304 and Duplex 2207 with reduced lead times as these alloys are stocked. Alloy 2205 (UNS S32305/S31803) is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed duplex stainless steel pipe with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness.

These super duplex fittings products are designed in accordance with national and international standard specifications. These Super Duplex Steel S32750 Seamless Fittings and Super Duplex Steel S32750 Welded Fittings are widely used in various application industries such as automotive, chemical, marine, power plants, heavy engineering, etc.

Mixed Austenitic Ferritic Microstructure ¨C The steel gets its name because the microstructure of the 2205 duplex stainless steel fastener alloy is a duplex or duplex alloy. This duality of austenitic ferrite leads to changes in the alloy.

This type of steel is excellently resistant to shearing as a result of stress corrosion, high thermal conductivity and a low thermal expansion coefficient.

The microstructure and composition of the duplex 2205 alloy provides corrosion resistance superior to Type 316 or 317 in many environments, and its minimum yield strength is more than double that of conventional austenitic stainless steels.