china f51 uns s31803 duplex 2205 bolt nuts

Alloy 800 Weld Neck Flanges We have a strong reputation in the industry for producing high-quality flanges of different types that would suit the requirements of our clients. We manufacture Incoloy 800 Flanges which are reliable and high in quality. We use premium resources and advanced machinery for producing ASTM B564 UNS N08800 Incoloy 800 Flanges.

Incoloy 800H Flange We have a strong reputation in the industry for producing high-quality flanges of different types that would suit the requirements of our clients. We manufacture Incoloy 800 Flanges which are reliable and high in quality. We use premium resources and advanced machinery for producing ASTM B564 UNS N08800 Incoloy 800 Flanges.

304 Piping Spools are made of 304 Stainless Steel, a common and popular material in many industrial applications that require resistance to corrosion and oxidation. These S30400 Piping Spools are prefabricated using specialized machinery and processes, which ensure that they are highly accurate and reliable.

This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.

The pipes of seamless configurations have higher load-bearing capacity and strength over other grades.

Nickel 200 flanges The Nickel 200 Flanges are durable, dimensionally stable, and have a fine finish. Moreover, the ASTM B564 UNS N02200 Blind Flanges are resistant to corrosion in neutral and oxidizing environments, making them perfect for use in food handling equipment.

Hastelloy C2000 Tubes are used in a broad range of industries including petrochemical processing, chemical processing equipment manufacturing, oil refineries and power plants.

Inconel 718 is a nickel-chromium-based alloy that is commonly used in high-temperature applications such as aerospace and gas turbines. One of the most important factors in the production of ASTM B670 Inconel 718 Sheet is the plate rolling process. There are two main types of Inconel 718 plates available on the market: hot rolled and cold rolled plates.

Nilo / Alloy K W.Nr.: 1.3981
UNS: K94610 ASTM F15
Fixed-expansion glass-encapsulated iron-nickel-cobalt alloys, Kovar alloys, have a linear thermal expansion coefficient similar to that of hard glass within a certain temperature range
For mating sealing with hard glass

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 .

Nickel Alloy 400 and Monel 400, also known as UNS N04400, is a ductile nickel-copper-based alloy consisting primarily of two-thirds nickel and one-third copper. Nickel Alloy 400 is known for its resistance to a variety of corrosive conditions, including alkalis (or acids), salt water, hydrofluoric acid, and sulfuric acid. Since Monel 400 or Alloy 400 is a cold worked metal, this alloy has high hardness, stiffness and strength. By cold working ASTM B164 UNS N04400 bar stock, the alloy is subjected to higher levels of mechanical stress, which in turn causes changes in the alloy’s microstructure.

It demonstrates good resistance to neutral and reducing environments. This alloy creates a tenacious oxide, protective film that does not spall off, but it retains superior oxidation resistance at soaring temperatures.

ASME B36.19M is the standard specification for stainless steel pipes, which specifies the dimensions, tolerance, and manufacturing requirements for both welded and seamless pipes.

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.

Common Trade Names: Nickel Alloy 36, Invar 36®, Nilo 6®, Pernifer 6®
Invar 36® is a nickel-iron, low expansion alloy that contains 36% nickel, Invar 36 has a low coefficient of expansion from cryogenic temperatures to about +500°F (260°C).
Invar 36 Tube OD:0.2-6mm, WT: 0.02-2mm

Hastelloy Alloys Directory
The Corrosion Resistant HASTELLOY alloys are widely used by the chemical processing industries. The need for reliable performance leads to their acceptance and growth in the areas of energy, health and environmental, oil and gas, pharmaceutical and flue gas desulfurization industries.

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

Nilo Alloy 36, W.Nr 1.3912, Invar 36® is a nickel-iron, low controlled expansion alloy that contains 36% nickel and possesses a rate of thermal expansion approximately one-tenth that of carbon steel.
Invar 36 Specifications: UNS K93600, W.Nr 1.3912

The 316 stainless steel pipe has become an indispensable material for the industrial sector. This alloy of iron and chrome is recognized for its high resistance to corrosion, as well as its durability. 316 stainless steel tubing can be produced in both seamless and welded tubes to meet specific customer needs.

AL6XN is a superaustenitic stainless steel with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. AL6XN is a 6 moly alloy that was developed for and is used in highly aggressive environments. It has high nickel (24%), molybdenum (6.3%), nitrogen and chromium contents that give it excellent resistance to chloride stress corrosion cracking, chloride pitting, and exceptional general corrosion resistance. AL6XN is primarily used for its improved pitting and crevice corrosion resistance in chlorides. It is a formable and weldable stainless steel.

ASTM A312 TP316 is a standard specification for seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipes used in high-temperature and general corrosive service applications. The 316 Seamless Industrial Steel Pipe is made from a combination of chromium, nickel, and molybdenum, which gives SS 316 Seamless Tube excellent resistance to corrosion and rust.

316L 1.4401 S31603 Stainless Steel Pipe is a highly versatile and durable pipe option commonly used in a wide range of industrial and commercial applications. This SS UNS S31603 pipe is made from high quality 316L stainless steel with excellent resistance to corrosion, oxidation and staining, making it ideal for harsh environments or high stress applications.

Inconel 625 Coil is characterized by its excellent resistance to oxidation, high-temperature corrosion and fatigue. ASTM B443 UNS N06625 Inconel Plate is widely used in the aerospace, chemical processing and oil and gas industries due to its superior strength, toughness and durability even in extreme environments.

Nickel based 800 Incoloy Hexagonal Pipe is known to have a good resistance to corrosion. Specifically speaking, the Incoloy 800 Pipe offers sufficient resistance against both carburization as well as oxidation corrosion.

SMO 254 Pipes can withstand high mechanical stress and Alloy 254 SMO Pipe high pressure work in high temperatures and corrosive environments.

Hastelloy C2000 is available in a variety of sizes and thicknesses, this type of nickel-chromium-molybdenum alloy is renowned for its superior strength and corrosion resistance.

Inconel 600 round bar is a nickel-based alloy with benign carburization and excellent corrosion resistance at high temperatures. Inconel 600 round bars are effective against drying Cl2 and many other different gases at mild and high temperatures. Alloy 600 bar is a nickel-chromium alloy with good oxidation resistance and resistance to chloride pressure decomposition cracking, high cleanliness water corrosion and acid oxidation at elevated temperatures.

Nickel-copper-based alloy 400 Monel 2.4360 cold drawn rod is virtually immune to chloride stress-related corrosion cracking when exposed to corrosive media in typical environments. Monel 400 is a copper and nickel based alloy that is popular today due to its high performance. The alloy has excellent acid and alkali resistance. In addition, it has good tensile strength, ductility, excellent thermal conductivity, and can be hardened by cold work. Additionally, it can be used in applications with temperatures ranging from minus to 538 degrees Celsius.

Alloy 800 is a nickel-iron-chromium alloy with high strength and excellent resistance to oxidation and corrosion at high temperatures. ASTM B407 UNS N08800 Incoloy 800 W. Nr. 1.4876 Welded Pipe is widely used for construction of equipment requiring corrosion resistance, heat resistance, strength, and stability for service up to 1500°F (816°C).

Titanium’s density is about 60% that of stainless steel and nickel alloys, this weight saving makes it a popular choice in applications where this is critical such as aerospace.

The reason ASTM B637 UNS N07718 bolts are ideally chosen for the manufacture of turbine engines. Since a turbine engine operates on basic thermodynamic principles, the efficiency of a turbine engine increases as the turbine inlet temperature increases.

Hastelloy tube has a melting point of 1370 degrees Celsius and is used in power generation, petrochemical, gas processing and chemical equipment. In addition, Werkstoff 2.4819 Hastelloy c-276 tubing is used in industries such as seawater equipment, offshore oil drilling, and paper and pulp.

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.

a350 lf2 welding neck flange has very good machinability, dependent on condition, and operations such as turning, sawing, milling, broaching, etc. The sa-350 lf2 flange ring type joint is fitted in two parts and will be connected to the piping application with welding. It is a machined from forging, it is typically butt welded to a pipe. The rim has a series of drilled holes that allow the flange to be affixed to another flange with bolts.

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

Monel 400 is a nickel-copper alloy (about 67% Ni ¨C 23% Cu) that is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions.?Butt-weld and forged fittings are available.Excellent corrosion resistance in many acidic and alkaline environments Especially suitable for reducing conditions. Good ductility and thermal conductivity Ideal for seawater applications.

ASTM A320 Grade L7 is a material specification for bolts, studs, nuts, and other fasteners designed for high temperature bolting applications. ASTM A320 L7 grades are divided into 4 performance classes, A, B, C, and D, each with different tensile and stress rupture properties. Class 660 fasteners are used to bolt boilers, pressure vessels, pipe flanges and valves for high temperature service.

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

We offer a complete range of 2205 Duplex Steel Fasteners such as Bolts, Nuts, Washers, Screws, Connecting Rods and Duplex Steel Screws. We also offer super duplex fasteners in different sizes, shapes, features and thicknesses according to customer requirements.

In order to convey the pipeline, it is necessary to remove the straight hose in the pipeline. When using various pipelines, various pipelines must be used. When the pipeline is used, the elbow must be used to change the size of the pipeline. When bifurcating, the three-way pipe The flange connection used when the joint is used with various pipe joints, in order to reach the long-distance transmission pipeline, in order to reach the thermal expansion and cold contraction joint or effective connection aging of the pipeline, the long-distance expansion and cold contraction joint is used for the connection of the pipeline. , In the connection of various instruments, there are also the connectors and plugs of the instrument phase.

Type 304 is slightly less strong than 302 due to its lower carbon content. Type 304 is widely used in welding applications because the low carbon allows some exposure to carbide precipitation in the 800¡ãF – 1500¡ãF range without the need for post annealing operations.
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 B36.34

The A320 Gr L7 stud material will undergo the following parametric tests – Impact Test, Tensile Test and Hardness Test according to the mechanical specification of A320 Grade L7 Bolts. The specification of A320 Gr L7 Hdg covers several grades of stainless steel including austenitic and ferritic stainless steels.

904L is the austenitic stainless steel material. The addition of molybdenum is providing it excellent resistance to the localized attacks such as crevice corrosion and pitting by chlorides.

The typical hardness of mild steel is Rb70/85. Parts requiring high strength and wear resistance or for use in critical components can be fabricated from high carbon steel or case hardened after fabrication. Chromate coatings can provide corrosion protection. Carbon steel washers are used for fastening in various industries.

Inconel 800, whose chemistry forms over 50% of nickel is known to be more expensive than the former.

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 310 (UNS S31000) is an austenitic stainless steel developed for high temperature corrosion resistant applications. The alloy resists oxidation up to 2010oF (1100oC) under mild cycling conditions. Due to its high chromium and moderate nickel content, alloy 310 is resistant to sulfidation and can also be used in moderate carburizing atmospheres.
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.”

718 bolts also has strong resistance to hydrogen embrittlement and stress corrosion cracking. Bolts of Inconel 718 are used for landing nipples, polished hole sockets in sour gas service, and side pockets or hangers. In addition, it is used in high-strength machines or tools in marine applications.

In order to convey the pipeline, it is necessary to remove the straight hose in the pipeline. When using various pipelines, various pipelines must be used. When the pipeline is used, the elbow must be used to change the size of the pipeline. When bifurcating, the three-way pipe The flange connection used when the joint is used with various pipe joints, in order to reach the long-distance transmission pipeline, in order to reach the thermal expansion and cold contraction joint or effective connection aging of the pipeline, the long-distance expansion and cold contraction joint is used for the connection of the pipeline. , In the connection of various instruments, there are also the connectors and plugs of the instrument phase.

The Alloy K500 Pipe Flanges have 63% nickel with 28% copper and carbon, manganese, silicon, sulfur and iron. The iron component in the monel K500 is much lower than that of monel 400. The Monel UNS N04400 Flanges also come under different standards such as ASTM, ASME, ANSI, DIN and all other international standards with varying dimensions. The dimensions of the flanges determine the pressure classes.

They can be welded easily and resist post-weld carburization or graining.

Our Alloy Steel A234 WP9 Pipe Elbow are available in a number of pipe end connections, like threaded, bevelled, square, grooved, bent, barbed and seamless and in a variety of wall thickness.The salts in Alloy Steel WP9 Pipe Reducer may create when hydrochloric acid interacts with iron and copper.

The flange is second most used joining method after welding. Flanges are used when joints need dismantling. It provides flexbility for maintenance. Flange connects the pipe with various equiment and valves. Breakup flanges are adde din the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrelated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls ae required in the selection and application of all these elements to attain a joint, which has acceotable leak tightness.

Incoloy 800 is primarily used in applications up to 1100¡ãF, where 800H and 800HT alloys are typically used where creep and rupture resistance is required above 1100¡ãF. The chemical balance allows nickel steel alloys to exhibit excellent resistance to carburizing, oxidizing and nitriding atmospheres.

Inconel flanges are constructed of high-grade 718 material for optimum heat and corrosion resistance properties. These flanges have excellent dimensional accuracy and excellent surface finish.

The ASTM A312 Tp304 Seamless Tube is an austenitic stainless steel used for high temperature and corrosive services. The 304 Stainless Steel Tube is very cost effective because of the comparatively low cost and the mild strength 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.”

The greatest advantage of Hastelloy B3 bolts compared to B-2 alloys is their ability to maintain excellent ductility during transient exposure to intermediate temperatures.

In order to convey the pipeline, it is necessary to remove the straight hose in the pipeline. When using various pipelines, various pipelines must be used. When the pipeline is used, the elbow must be used to change the size of the pipeline. When bifurcating, the three-way pipe The flange connection used when the joint is used with various pipe joints, in order to reach the long-distance transmission pipeline, in order to reach the thermal expansion and cold contraction joint or effective connection aging of the pipeline, the long-distance expansion and cold contraction joint is used for the connection of the pipeline. , In the connection of various instruments, there are also the connectors and plugs of the instrument phase.

Hastelloy C276 Flanges are made up of the nickel chromium molybdenum alloy that is called hastelloy. The composition includes 50.99% nickel, 14.5% chromium, 15% molybdenum and carbon, manganese, silicon, sulfur, cobalt, iron and phosphorus in it.

INCONEL 718 alloy was primarily chosen by design engineers for its high strength in extreme temperature conditions at both ends of the spectrum. It can be used from low temperatures all the way up to 1300¡ãF/704¡ãC. It exhibits extremely high yield, tensile and creep rupture properties across the entire range. It also exhibits excellent tensile and impact strength.