Duplex stainless steel Zeron S32760 1.4501 hex bolt DIN933 ISO4032

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.

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 .

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.

UNS S31803 Bolt is a threaded fastener with external threads. Generally, like screws, alloy S31803 bolts tend to use a variety of head designs.

2205 is the standard duplex grade and is more economical than most other duplex grades.

The ductility and corrosion resistance of duplex steel fasteners are reminiscent of their austenitic microstructure. On the other hand, the toughness and hardness of these fasteners are inherited from the ferritic region.

The flange a182 f53 can also differ in the face type as flat face, raised face and ring type joint flanges.

Duplex stainless steel has an array of various benefits such as:
Strength:Duplex stainless steels have approximately double the strength of regular austenitic or ferritic stainless steels.
Toughness and ductility:Duplex stainless steels exceed the toughness and ductility of ferritic grades although they are not as touch as austenitic grades.
Corrosion resistance:As with all stainless steels, corrosion resistance depends mostly on the composition of the stainless steel, with chromium, molybdenum and nitrogen content being the most important. Duplex stainless steels are extremely corrosion resistant and even in chloride and sulphide environments, duplex stainless steels exhibit very high resistance to stress corrosion cracking (SCC). SCC is a type of corrosion that takes place when a particular set of factors are present: Tensile stress, corrosive environment and a sufficiently high temperature.
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.”

ASTM A240 Type 2205 Duplex Sheet provides a maximum Brinell hardness value of approximately 290 in the annealed condition.

Duplex 2507 is a super duplex stainless steel containing 25% chromium, 4% molybdenum and 7% nickel. This alloy is designed for applications requiring excellent strength and corrosion resistance.

Super Duplex 2507 is designed to handle highly corrosive conditions and where high strength is required. The high molybdenum, chromium and nitrogen content in Super Duplex 2507 helps the material withstand pitting and crevice corrosion.

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

The astm a182 f53 vs f55 can come in different diameters ranging from ? inches to 48 inches with different pressure classes ranging from class 150 through class 2500.

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

S31803 Duplex Steel is a 22% chromium duplex (austenitic/ferritic) steel with moderate to good strength and good general corrosion/stress corrosion/cracking resistance.

As a global leader in the supply and distribution of duplex 2205 round steel, our steel is used in oil and gas, hydropower, pressure vessels, pulp and paper, structural components, chemical tankers and many other industrial applications.

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

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.

Alloy 2507 has 25% chromium, 4% molybdenum, and 7% nickel. This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.

Super Duplex 2507 (F53 / 1.4410 / UNS S32750) has excellent corrosion resistance to a variety of media, and has excellent resistance to pitting and crevice corrosion in seawater and other chloride-containing environments, with a critical pitting temperature exceeding 50¡ãC.

La tuberia ERW se usa en aplicaciones que requieren una soldadura extensa para la instalacion. Los usos de la tuberia duplex ASTM A790 UNS S32205 no se limitan a aplicaciones industriales, tambien se pueden ver en aplicaciones domesticas de bajo costo.

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.

As well as greater tensile and yield strength whilst still providing good ductility and resistance to stress corrosion cracking.

Super Duplex stainless for e.g. alloy UNS S32750, has a mixed microstructure of both austenite as well as ferrite in an equal or 50/50 ratio.

The corrosion resistance comes from the addition of alloying material, mostly the chromium content. The ASTM A790 Pipes are resistant to pitting corrosion and crevice corrosion. The pipes could also be electric fusion welded.

SA 240 UNS S32760 Sheet For ships, tanks and containers, for deployment on most surfaces around metal lattices.

Duplex-grade stainless steel alloys have ferritic/austenitic properties, giving these materials superior strength and excellent resistance to oxidation.

Our Duplex Steel S31803 bar is an industrially processed nitrogen-modified steel that addresses common corrosion problems encountered with 300 series stainless steels.

Austenitic has a low strength and a low resistance to stress corrosion cracking, while ferritic also has a low strength, poor weldability and poor low temperature toughness. Producing a chemical composition that combines austenitic and ferritic results in a metal that has a higher strength, good weldability, good toughness and resistance to stress corrosion cracking.
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.”

2205 is the most widely used duplex (ferritic/austenitic) grade of stainless steel. It is used due to its excellent corrosion resistance and high strength. Over the years, many steel suppliers have made improvements to the standard duplex S31803 composition, and the resulting restricted composition range was recognized as UNS S32205 in 1996.

ASTM A182 F51 equates to UNS S31803. This was the original caption for a 22% Cr duplex stainless steel.

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.

Super Duplex Alloy UNS S32750 (F53 / 1.4410 / Alloy 32750 / Alloy 2507) combines the most desirable characteristics of both ferritic and austenitic steels.