The exhibition of Zhengzhou Huitong stainless steel pipe fittings reducers

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.

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.

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.

UNS N08367 also commonly referred to as alloy AL6XN is a low carbon, high purity, nitrogen-bearing “super-austenitic” nickel-molybdenum alloy with excellent resistance to chloride pitting and crevice corrosion.

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.

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.

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.

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

Molybdenum in Incoloy 925 Slip On Flanges aids resistance to pitting and crevice corrosion whilst Chromium offers resistance to oxidizing environments.

ASTM A453 covers 5 grades of bolts with 12 yield strength grades ranging from 50 to 120 ksi [345 to 827 Mpa] for high temperature applications such as fasteners for pressure vessel and valve flanges. Specifications are expressed in inch-pound units and SI units. Known as precipitation hardening stainless steel, this alloy is an austenitic grade that may sometimes be referred to as a nickel alloy. This is because ASTM A453 Grade 660 bolts are alloyed with relatively high nickel content for any stainless steel.

Flanges are used for long-term pipelines. The so-called stainless steel flange uses the flange as the interface between two sections of the pipe connection, rather than directly connecting the pipe.

S31803 is the Unified Numbering System (UNS) designation for the original duplex stainless steel. The UNS system was created by multiple trade groups in the 1970s to reduce confusion when the same alloy was called different things, and vice versa. Each metal is represented by a letter followed by five numbers, where the letter represents the metal series, i.e. S for stainless steel.

For paper mill applications requiring lower alloy grades that do not have sufficient corrosion resistance. Based on a 22% chromium content, they have a combined austenitic:ferritic microstructure that provides greater strength, corrosion resistance and cost-effectiveness.

The UNS S31803 (ASTM F51) specification has been largely superseded by UNS S32205 (1.4462, ASTM F60). This reflects their desire to maximize the alloy’s corrosion properties, thanks to the development of the AOD steelmaking process, which allows for tighter control of composition. In addition, it allows to influence the nitrogen addition level rather than just being present as a background element. Therefore, the highest performing duplex grades seek to maximize the content of chromium (Cr), molybdenum (Mo) and nitrogen (N).

304L stainless pipe has slightly lower mechanical properties than standard 304 grades, but is still widely used due to its versatility. Like Type 304 stainless steel, it is commonly used in beer brewing and winemaking, but is also used outside of the food industry, such as chemical containers, mining and construction. It is ideal for metal parts such as nuts and bolts exposed to salt water.

317L is non-magnetic in the annealed condition but may become slightly magnetic as a result of welding.Fittings supplied under this specification shall be examined visually for surface discontinuities, surface checks, and mechanical marks.

La tuberia 254 Smo se usa ampliamente en el tratamiento de agua de mar, procesamiento quimico, procesamiento de alimentos y produccion de petroleo. Tubo Smo 254 tambien se utiliza en sistemas de blanqueo de plantas de celulosa, desulfuracion de gases de combustion, lavadores y columnas de destilacion de tall oil.

The lower carbon content of the stainless steel 304 thread bar reduces chromium carbide precipitation from welding and its susceptibility to intergranular corrosion. Stainless steel 304 studs are not particularly thermally or electrically conductive and are non-magnetic. The large number of Style 304 Stud Bolts we manufacture today can be used in products related to the food and beverage industry. These AISI 304 studs are ideal for milk processing, brewing and winemaking as well as yeast trays, pipes, fermentation vats and storage tanks.

A flange is a ring of steel (forged, cut from plate, or rolled) designed to connect sections of pipe, or to join pipe to a pressure vessel, valve, pump or other integral flanged assembly. Flanges are joined to each other by bolts, and to the piping system by welding or threading (or loose when stub ends are used). Stainless steel flange simplified as SS flange, it refers to the flanges that made of stainless steel. Common material standards and Grades are ASTM A182 Grade F304/L and F316/L, with pressure ratings from Class 150, 300, 600 etc and to 2500. It used in more industries than carbon steel as stainless steel has better resistant performances on corrosion environment and always provides with a good appearance.

An ASTM A403 WP304 Fittings is a type of austenitic grade fitting. SS Pipe Fittings can either be seamless or ERW.

HT PIPE offers all 254 SMO Straight Pipes, SMO 254 Pipes for the Oil & Gas and Refinery Industry in the form of 254 SMO Square Pipe, 254 SMO Round Pipe, 254 SMO Hexagonal Pipe, and 254 SMO Hollow Pipe.

Grade 304 is an austenitic steel with excellent welding and forming properties. These stainless steels are widely used in the petrochemical and food industries for their corrosion resistance, tensile strength and ability to withstand higher temperatures. Depending on the specific grade, there is a compromise between corrosion resistance and temperature characteristics.
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 B36.38

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.

Because the alloy is easy to work with and less prone to damage, companies bend it into various shapes and forms. For example, 316l stainless steel is available in strip, wire, sheet, bar and other shapes. Every industry has successfully manipulated this metal to create a variety of finished products.

304 stainless steel is a symbol of many of the most commonly used or has become standard stainless steel products. 304, 304l may be an important component of 300 series steels (as described in the SAE requirements) processing a range of austenitic chromium-nickel alloys. They are also known as 18/8 stainless steels because their elemental composition includes approximately 18% chromium and 8% nickel by weight.
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 B36.22

We supply ASTM A182 F11 long butt weld flanges with niobium and titanium added to the mining, construction, rail and aerospace industries for sensitization resistance and maximum strength. We closely monitor market trends and needs to invent new, sustainable and economical products that can be customized. Our products are fully certified and 100% durable.

Where welding is required, the steel has the property of cracking as it cools. The high temperatures of the welding process cause what is known as “hot embrittlement” as the steel cools. This makes structures built with high carbon content steel more susceptible to damage due to the formation of cracks in areas where the metal is welded. 316l stainless steel alloy is used in a variety of applications as it is well suited to avoid weld corrosion. It can also withstand high temperatures and has a high melting point at about 2,500 degrees Fahrenheit or about 1,370 degrees Celsius. In addition to carbon, this alloy contains up to 2% manganese and up to 0.75% silicon.

A403 316L Stainless Steel covers the standard for wrought austenitic stainless steel fittings for pressure piping applications.Compared to grade 316, the pitting resistance properties of ASME B16.9 SS 316L Fitting is much higher.

Incoloy 925 Slip On Raised Flanges provides excellent resistance to stress-corrosion cracking, pitting and crevice corrosion in both oxidizing and reducing environments.

It has long-term resistance to most chemicals, salts and acids, and challenging environments such as marine environments.

Steel pipes can be disintegrated on the basis of its application. Typical applications of steel pipes are in the area of water pipelines, industrial water lines, oil pipe lines, cross country pipe line, agriculture and irrigation pipes, tube lines for natural gas, chemical industries, automobile industry, construction industries and other purposes.

Stainless Steel 304 Sheet is made up of an austenitic stainless steel that has 18% chromium and 8% nickel in the composition.

Grade 316 is also primarily composed of iron, and again contains significant amounts of nickel and chromium¡ª10-14% and 16-18%, respectively¡ªand small amounts of carbon, manganese, molybdenum, and silicon. For this reason, grade 316 stainless steel is often preferred for use in marine 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.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.67

304l pipe has good oxidation resistance in intermittent duty up to 870¡ãC and continuous duty up to 925¡ãC. However, continuous use at 425-860¡ãC is not recommended. In this case, 304L is recommended because of its resistance to carbide precipitation. Where high strength is required at temperatures above 500¡ãC and up to 800¡ãC, Grade 304H is recommended. This material will remain resistant to water 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.”

For severely corrosive environments, lower levels of Type 304L are preferred due to its greater resistance to intergranular 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.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.28

Stainless steel is on average 2.5 times stronger than copper and performs far much better on the strain and stress tests. The relatively weaker structure for copper makes its piping vulnerable to external forces that may cause cracks and leaks.
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¡¯s also ideal for sensitive industries such as food preparation and pharmaceuticals, as the risk of contamination is much lower.

Stainless Steel 309S Flanges can operate at temperatures up to 1038 degrees Celsius. They are made up of a material that is strong and corrosion resistant as well.

Alloy 904L Blind Flanges
Featuring 304 stainless steel for very good corrosion resistance, this GRAINGER APPROVED weld neck flange can be attached to a system via a circumferential weld at the neck. The welded area can be easily examined by radiography. Matched pipe and flange bore reduces turbulence and erosion inside the pipeline. Flange is excellent for use in your critical applications and is ideal for use with air, water, oil, natural gas, and steam.

ASTM A453 specification describes the detailed requirements for Class A, B, C, and D, Class 660. The A453 specification covers Class 660 bolt materials with two classes of yield strength, viz. 85 ksi and 100 ksi [585 and 725 MPa] respectively for high temperature service, components such as bolts, screws, nuts, studs and various other fasteners for pressure vessel and valve flanges. A286 is a precipitation hardening austenitic stainless steel designed for temperatures up to 1300¡ãF (704¡ãC) where high tensile strength, excellent creep strength and good corrosion resistance are required.