Duplex stainless steel S32760 1.4501 Zeron 100 flat plain washer DIN125

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.

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

A Super Duplex 2507 Pipe has outstanding resistance to corrosive and oxidative media.

2507 is used for oil and gas industry equipment, offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, and injection and ballast water systems.

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.

Duplex 2205 bolts are among the most commonly used duplex grades. These are called standard duplex steel fasteners. There are different types of fasteners such as studs, bolts, nuts, screws, etc. Duplex stainless steel fasteners are used in chemical processing, transportation, storage, oil and gas, marine, paper and pulp, wine and many other industries. A wider range of applications is possible due to the combination of corrosion resistance, high temperature capability and high pressure resistance of Duplex Steel 2205 Nuts and Bolts.

S31803 has been supplemented by S32205 (F60) which has a higher minimum Ni Cr and Mo.

Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments.

A high molybdenum superaustenitic with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. Suitable for use in pulp mill bleach plants, seawater heat exchangers and chemical process equipment.

Super Duplex is used in gas and oil industry, on offshore platforms, chemical processing equipment pressure vessels and boilers, in heat exchangers.

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

Duplex plates have a two-phase or two-phase microstructure. The microstructure of the duplex steel S32205 foil consists of equal proportions of ferrite and austenite.

Duplex steels are also magnetic, a property that can be used to easily distinguish them from ordinary austenitic stainless grades.

2507 Duplex Plate also exhibit better ductility and toughness compared to ferritic stainless steels, but they do not provide these properties as successfully as austenitic stainless steels.

The presence of ferrite in the duplex 2205 welded pipe is what provides for an enhanced performance of this stainless steel grade in caustic media containing 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.”

These grades are excellent for fixed service simple flange connections, but slightly less so when forming a complex metallic shape. Fortunately, the workability of duplex into complex and rounded structures is less of an issue in structural steel given the wide preference for simple mild steel in non corrosive applications.

In S31803, about half of the ferrite grains transform into austenite grains (“islands”) as the material cools to room temperature. The result is a microstructure of approximately 50% austenite and 50% ferrite.

Due to the material composition, the strength and the corrosion resistance, these flanges are used in a variety of applications.

The material for UNS S32760 Stud Bolts is about 10% lighter when compared to grade 316 stainless steel. The Stud Bolt S32760 demonstrates high performance at cryogenic temperature settings as well. Which means that the ASTM A1082 UNS S32760 has good sub-zero notch ductility properties down to a temperature of minus 50¡ãC.

Supler Duplex Steel UNS S32760 stud bolt has a higher yield strength and lower ductility than the austenitic steels so fabricators may find that higher forming forces, increased radius of bending, and increased allowance for spring-back are necessary.

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

Alloy 2205 duplex stainless steel is an alloy developed from the initial Super Duplex Stainless Steel. It is supplied in the solution annealed condition.

ASTM A182 F53 flanges refer to flanges made from super duplex stainless steel 2507 (UNS S32750) by a hot forging process.

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.

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

Super Duplex is composed of 24% to 26% chromium, 6% to 8% nickel, 3% molybdenum and 1.2% manganese, with the remainder being iron. Trace amounts of carbon, phosphorus, sulfur, silicon, nitrogen, and copper were also found in Super Duplex.

Duplex steel UNS S31803 hex nuts are widely suitable for the effects of sulphurous gases, especially above 900 degrees Celsius, very low.

Phase stainless steel UNS S31803 fasteners exhibit the properties of austenitic and ferritic stainless steels. UNS S31803 dual phase steel fasteners have high strength, good resistance to sulfide stress corrosion and excellent impact toughness.

Super Duplex UNS S32750 is the most common super duplex grade in the market. UNS S32750 is a duplex stainless steel especially designed for service in aggressive chloride-containing environments.

Duplex 2205 stainless steel round bars (ASTM A276/ ASTM A479) exhibit good heat resistance up to 300¡ã. SS Rod can be easily welded by most standard methods, the only mandatory requirement is the use of filler metal. Due to its high strength, machinability is low.

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