S31803 DIN934 ASME B18.2.2 hex nut duplex hex nut

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.

ASTM A182 F53 Super Duplex Flanges available with rating class of 150#, 300#, 400#, 600#, 900# and 1500# in sizes NPS 1/2 to 24.

This alloy is especially useful in the -50¡ãF/+600¡ãF temperature range. For applications outside this temperature range, this alloy can also be considered, but there are some restrictions, especially when used in welded structures.

Duplex stainless steel, alloy 2205 was designed as comprising 22% chromium, 3% molybdenum, and 5-6% nickel nitrogen. Alloy 2205 combines the desirable aspect of properties of both austenitic and ferritic grades.

These super duplex UNS S32760 round bars are available in a variety of shapes, sizes and diameters depending on the needs and requirements of the application and customer supplied specifications. These super duplex UNS S32760 round bars are resistant to localized corrosion.

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

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.

The formation of ASTM A479 duplex steel UNS S32205 tie rod consists of a pool of austenite surrounded by continuous ferrite phases. ASME SA 479 Duplex Steel UNS S31803 Tie Rods are hot worked in the temperature range of 1750¡ãF to 2100¡ãF. This is designed to reduce the depth used in fabrication, thereby reducing the weight of precise significance for items such as pressure vessels, structural functions, etc. As ASTM A479 dual phase steel for bridges, storage tanks, etc. UNS S32205 rebar has approximately twice the superior performance of SS 304 .

Duplex 2205 is a nitrogen-enhanced duplex stainless steel designed to solve common corrosion problems encountered with 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic (such as 304 stainless steel) nor purely ferritic (such as 430 stainless steel).
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 B36.65

The Duplex Steel Pipe gets its name from the dual nature present in the microstructure of the alloy. Duplex Stainless Steel Seamless Pipe have good mechanical characteristics and can be used in an as welded condition. Considered to be superior in comparison to austenitic alloys ASTM A312 TP304 or ASTM A312 TP316, the Seamless Duplex Pipe offers much better resistance to corrosion.
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 2205 fasteners have high toughness and hardness while also possessing high levels of tensile strength, all as a result of the chromium present in them. However, it can be concluded that dual phase steel fasteners are undeniable; neither deformed nor damaged. This anomaly is much less likely to happen. 2205 Duplex Fasteners consume delicate structures made from ferritic and austenitic stainless steels that are considered part of an alloy, and the end result provides excellent mechanical properties in duplex fasteners.

The SA 182-F51 S31803 comes under ASME B16.47, B16.48 and B16.5 standards with sizes ranging from 1/8 NB to 48NB.

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

The A182 F51 material has carbon, 2% manganese, phosphorus, sulfur, 1% silicon, chromium, 4.5% nickel, 2.5% molybdenum and nitrogen it.

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

The A182 Gr. F51 / S31803 material is a typical duplex stainless steel, which contains approximately 50% ferrite and 50% austenite.

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.

We are a manufacturer of Stainless Steel Round Bar, Formed Steel and Rebar, we supply bars such as 304, 304l, 316, 316l and 347. We are proud to have the largest share of stainless steel forming steel in the country.

Duplex steels have high resistance to various types of corrosion. Duplex Steel S31803 is an extremely corrosion-resistant, work-hardenable alloy. Duplex steel S31803 butt weld flanges have good high temperature properties.

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.”

HT PIPE is the government certified and doing business in steel industry for long years and are manufacturing S32750 Duplex buttweld fittings at affordable rates.

Inhibiting deformation and cracking at high temperatures, the dual phase steel S31803 / S32205 reducer is superior to common steel parts in the chemical industry that are susceptible to chloride stress corrosion cracking. With flue gas desulfurization machinery. Tees such as ASME A182 Duplex Steel S31803/S32205 are known to have good resistance to high toxicity and elasticity.

S31803 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 origin of Duplex steels can be traced back to the 1920s, with the first cast being made in Sweden in 1930. However, the popularity of using duplex only started to rise around 30 years ago when steelmaking technology became more advanced. The two types of metals used to make Duplex ¨C austenitic and ferritic ¨C are both fit for purpose in many types of scenarios but they both have weaknesses that prevent them from being used more widely.
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.”

La microestructura hibrida de la tuberia Super Duplex 2507 mejora su rendimiento.

The Duplex Steel Pipe gets its name from the dual nature present in the microstructure of the alloy. Duplex Stainless Steel Seamless Pipe have good mechanical characteristics and can be used in an as welded condition. Considered to be superior in comparison to austenitic alloys ASTM A312 TP304 or ASTM A312 TP316, the Seamless Duplex Pipe offers much better resistance to corrosion.
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 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment.

The 2507 pipes could also be electric fusion welded. The Pipes Manufacturer comes under five different classes with each class having a special mechanical property setup. The electric resistant welded pipes are stronger and they could be used for extensive welding.
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 Benefits of Duplex Stainless Steel are improved Strength, because many duplex grades are as much as two-times stronger than austenitic and ferritic stainless steel grades, high Toughness and Ductility, high Corrosion Resistance, and Cost Effectiveness.
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.”

The different face types have their own advantages in piping applications.