acero inoxidable ASTM A790 S32750 1.4462 x2crnimon22 5 3

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.

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 .

Super Duplex UNS S32750 bar has excellent resistance to stress corrosion cracking in chlorine containing environments. After heating to a solution treatment temperature of 1080¡ãC to 1120¡ãC, quenching is required.

Duplex stainless steel (DSS) is featured with structure of two phases (¦Á and ¦Ã) and has characteristics of both ferritic and austenitic stainless steel. It has good corrosion resistance and high strength. It is alloyed with 18%-28% Cr and 3%-10% Ni in the condition of low C. Some steels also contain the alloy elements such as Mo, Cu, Nb, Ti and N, etc.
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 advantage of the dual-phase structure is that it combines the advantages of ferritic alloys (resistance to stress corrosion cracking and high strength) with the advantages of austenitic alloys (ease of manufacture and corrosion resistance).
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 B36.50

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.

The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity and a low coefficient of thermal expansion. The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion.

ASTM A815 specification covers two general classes, WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction. Class WP fittings are subdivided into four subclasses: Classes WP-S, WP-W, WP-WX, and WP-WU. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products.
Teel Industry has grown in the past few decades and there are a variety of products available in the market. ASTM A815 UNS S32750 Pipe Fittings are one of those products and are available in various sizes, shapes, and dimensions. ASTM A815 UNS S32760 Pipe Fittings are designed to be resistant to corrosion and are said to have perfect weldability. These Super Duplex S32750 Buttweld Fittings are resistant to erosion corrosion and fatigue. They have a mixed microstructure of 50% austenitic and 50% ferrite.

Super Duplex 2507 is used in environments containing high levels of chlorides or dissolved oxygen, such as seawater cooling, salt evaporation, and desalination, geothermal wells.

The raised face allows for the flange to have more bolt holes and connection surface while the welded neck grips the pipe in place. The applications are oil and gas, petroleum, petrochemical and other industrial applications.

The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion.

ASTM A240 UNS S32750 Plate is a stainless steel alloy with excellent resistance to chloride stress-related corrosion cracking.

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.

Seamless Pipes also execute properties like high strength and resistance to corrosion from organic acids. Also, these Pipes can withstand inorganic acids and chloride environments.
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 structure of 2205 duplex stainless steel consists of a pool of austenite surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. 2205 is often referred to as the workhorse grade and is the most widely used grade in the duplex stainless steel family.
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 B36.66

Alloy 2205 gets the name Duplex because it is composed of two different types of grains. 40-50% of its grain structure is austenite and 50-60% of it is ferrite. It is closely related to, but much more popular than Alloy 255. In most environments, it surpasses 317L in crevice corrosion resistance. 2205 Duplex excels in chloride environments and resists hydrogen sulfide. 2205 Duplex has almost twice the strength of 316L. Due to the lower nickel and molybdenum content, it is less costly than Alloy C276. Among the places where 2205 Duplex is used include pressure vessels, heat exchangers and scrubbing systems.

The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion.

Duplex 2205 stainless steel (ferritic and austenitic) is widely used in applications requiring good corrosion resistance and strength. UNS S31803 grade stainless steel was modified several times to form UNS S32205, which was approved in 1996. This grade offers higher corrosion resistance.
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 B36.60

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.

Duplex alloys have some of the ferritic stress corrosion cracking resistance of common austenitic stainless alloys and many of the superior formability properties that are more cost effective than high nickel alloys.

UNS S32750 Flanges are used in seawater piping, desalination plants, mechanical components, high-pressure RO plants, etc. SD pipe flanges are used in heat exchangers, service and process water systems, offshore platform, oil & gas industry, etc. These flanges are also found in line pipes, power industry FGD system, industrial & utility scrubber, absorber tower, pressure vessel, etc.

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.

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

Duplex alloys prove themselves useful in applications where ordinary steel grades are susceptible to failure. The microstructure of the Duplex Pipe Material partially consists of both austenite and ferrite regions.
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 2205 was developed to provide excellent machinability. Control of composition and inclusion type improves chip formation and reduces tool wear, resulting in higher machining efficiency and lower tool costs.

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

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.”

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.

On average, duplex stainless steel is about twice as strong as either ferritic or austenitic stainless steels. High toughness and ductility. Duplex stainless steel can be more easily formed under pressure than ferritic grades and also have superior toughness.

Duplex is a metal that is made of a two-phase microstructure consisting of austenitic stainless steel and ferritic structures.

Duplex steels have the best resistance to pitting corrosion. This steel has effective fatigue strength to resist corrosion of the steel. The steel can be used in a wide range of heating temperatures in the industry.

All Duplex 2205 Seamless Pipe produced according to the ASTM A789 must be furnished in a heat treated condition.