A182 F51 2205 S31803 flange ring has high strength values

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

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.

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 .

Duplex 2507 has high resistance to chloride stress corrosion cracking, high Strength, and superior resistance to chloride pitting and crevice corrosion.

Duplex Steel UNS S31803 Seamless Pipes are widely used in various applications in the industry. These ASTM A790 Duplex Steel S31803 Pipes are made up of a combination of microstructure of austenitic and ferritic grains, which gives them unique properties. These properties include a high resistance to corrosion, excellent strength and toughness, and good weldability.

ASTM A240 UNS S32750 plate is suitable for high tension and high corrosion environments.

UNS S32750 Bolts are used for the assembly of two unthreaded components, with the assistance of a nut. UNS S32750 Bolts are known to have superior properties such as high tensile and yield strength.

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.

These grades of super duplex stainless steel fasteners are used when applications require excellent corrosion resistance and strength. Composed of nitrogen, molybdenum and chromium, they have excellent resistance to crevice corrosion and chloride pitting.

Light gauges of 2507 material can often be used to achieve the same design strength of thicker nickel alloys. Duplex 2507 plate is suitable for applications requiring excellent strength and corrosion resistance. It contains 25% chromium, 4% molybdenum and 7% nickel.

2205 has excellent corrosion properties, and it is well-suited to environments containing chlorides and hydrogen sulphide, for use in oil and gas extraction from sour wells, in refineries and in process solutions contaminated with chlorides.

Compared with austenitic stainless steel, F51 duplex stainless steel has twice the compressive strength, and compared with 316L and 317L, the designer can reduce its weight.

The duplex microstructure gives this grade high strength UNS S32750 a low coefficient of thermal expansion and higher heat conductivity than austenitic steels and is suitable for working temperatures up to 300¡ãC.

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

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

Super Duplex 2507 stud bolts (EN 1.4410) are made of a stainless steel alloy containing 25% chromium, 4% molybdenum, and 7% nickel. Duplex 2507 is known for its high strength and excellent localized corrosion resistance to chloride.

Various Duplex Pipe suppliers, stockist, distributors, exporters, importers, dealers, and stockholders procure the material good deal from Aesteiron and supply in their own countries with high margin, so always buy directly from us in China to get the best price.
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.”

Since the material is also resistant to acids and chlorine compounds, it could see its application in marine environments, especially in saltwater containing chlorine compounds. The ferritic portion of the duplex structure of Super Duplex 2507 round bar alloy makes it resistant to stress corrosion cracking in warm chloride-containing environments.

Duplex 2205 fasteners are made from cost-effective, long-lasting and corrosion-resistant steel. The grade of steel used to make fasteners can be ferritic, austenitic or dual phase steel. Duplex materials have the strength qualities of ferritic steels and the corrosion-resistant qualities of austenitic steels.

Although when the 2205 duplex stainless tubing material has been exposed to temperatures above 572¡ãF, even when the exposure is for a short period of time, the duplex 2205 seamless tube is subject to embrittlement.
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 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.

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.
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 accounts for around 80% of overall duplex stainless steel production.

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.”

ASTM A789 / ASME SA789 covers grades of average wall thickness, or, if specified on the order, minimum wall thickness, of stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are suscep- tible 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 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.”

An austenitic-ferritic stainless variant with a higher stress corrosion cracking resistance in comparison to regular austenitic 304 and 316 stainless, but with a lower toughness and impact strength.

Duplex¡¯s premium mechanical and chemical properties are slightly offset by its difficulty in formability.

Duplex 2205 is a nitrogen enhanced duplex stainless steel designed to solve common corrosion problems encounutered with 300 series stainless steels.

ASTM A240 UNS S32750 sheet is a type of steel known as super duplex steel.

Due to the alloy’s very high mechanical strength, dual-phase fastener manufacturers can reduce the weight of their designs by thinning the cross-section of the final product, proving a cost-saving alternative to other grades of stainless steel.

Super Duplex 2507 Equal tees are the most common fittings.

Compared with ferritic stainless steel and austenitic stainless steel, duplex stainless steel pipe has good welding performance. It is neither like the welding heat affected zone of ferritic stainless steel, because of the grain coarsening, the plastic toughness is greatly reduced, nor like austenitic stainless steel, it is more sensitive to welding hot cracks.
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.”