2022 hot-sale product standard ASTM A815 S32750 tee pre-insulated steel pipe fitting for heat and cold supply

A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.

This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.

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The UNS S31803 (ASTM F51) specification has been largely superseded by UNS S32205 (1.4462, ASTM F60).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).

ASTM A815 specification covers two general classes, WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction covered by the latest revision of Specification A960/A960M. Fittings differing from these standards may be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M.

The superposition of residual stress caused by cold working and aging thermal stress, as well as the preferential embrittlement of the surface layer at the initial stage of aging, are the main reasons for aging cracking of Monel K500 alloy.

ASTM a403 wp304 Elbow is an industrial fitting that changes the direction of a pipe. This connection allows conventional threaded pipe to be rearranged for turns or installation in limited spaces without the need to purchase a pipe bender.

A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.

This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.

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.

Inconel Tube Fittings can be easily elongated by 40% and still possess excellent workability. These fittings have a melting point of about 1413 degrees C and have a long service life. The Inconel 600 Buttweld Fittings can be produced by hot or cold rolling processes.

ASTM A403 WP317 Pipe Fittings?could be a altered adaptation of?Stainless Steel 317L Pipe Fittings.

Steel tee is a kind of three T-shaped pipe fittings. Generally, there are two forms of equal diameter tee and reducing tee (reducing tee), both of which are used to divide (join) pipelines to adjust flow and change direction. Steel pipe tee has been widely used in different industries, according to the type of material: stainless steel tee, carbon steel tee
, alloy steel tee.

Industries that benefit from pipe fittings are chemical, pharmaceutical, refinery, petrochemical, sugar, nuclear, engineering and thermal piping plants. Nickel Alloy 800/825 fittings meet global requirements and are recognized for their characteristics, including superior tensile strength, dimensional accuracy and superior durability.

A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.

This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.

A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.

This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.

Usage of Duplex 2507 should be limited to applications below 600¡ã F (316¡ã C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507.

Grade WPB fittings made from the steel pipes or plates maximum C is 0.35%.

Tube caps are used as protective devices designed to protect tube ends of various shapes. The main purpose of using pipe caps is to waterproof connections. They are also used to close the ends of hydraulic or pneumatic pipes and tubes. We supply 1-8 SS304L pipe butt weld pipe fitting cap.

The nickel content makes the alloys highly resistant to both chloride stress-corrosion cracking and to embrittlement from precipitation of sigma phase.

1.4529 German numeral code. Is a super duplex stainless steel, the main components: 20Cr-25Ni-6Mo-1Cu-0.2N corresponding to the United States: N08926, 254SMo…
1.4529 (UNS N08926) has very high resistance to pitting and crevice corrosion in halide media and in acidic environments containing sulfur and hydrogen
It can effectively resist chloride ion stress corrosion, and also has good corrosion resistance and good stability in oxidizing and reducing media.
The mechanical properties are slightly better than 904L, and it can be used in the manufacture of pressure vessels from -196 to 400 ¡ãC.

304 fittings are standard “18/8” stainless steel; it is the most versatile and widely used stainless steel available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics.

Alloy 400 is virtually immune to chloride ion stress corrosion cracking in typical environments.

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.

Titanium rapidly starts to react with oxygen molecules at around 1,200 ?C, and it can exhibit the same behavior at a reduced temperature of 610 ?C when the oxygen is in pure form.

Among the various grades of stainless steel, one grade is austenitic steel containing columbium. Fittings made from it are called stainless steel 347 fittings. They are widely used at high temperatures and have amazing forming and welding quality. The addition of columbium to stainless steel 347 weld fittings provides resistance to intergranular corrosion. It also shows improved corrosion resistance in strongly oxidizing environments. They are widely used to install, connect and configure other products.

Steel pipe fitting are made of carbon or alloy steel pipe, plates, profiles, to a certain shape that could make a function (Change the fluids direction or rate) in pipeline systems. Mostly these fittings includes steel elbow (45 or 90 degree bend), tee, reducer (concentric or eccentric reducer), cross, caps, nipple, flanges, gasket, studs and etc.

The mixture of austenitic chromium-nickel-iron with a small amount of molybdenum makes Alloy 20 known as a “superalloy,” which provides resistance to acid attack under a variety of conditions. We are a manufacturer of ANSI B16.9 Alloy UNS N08020 Equal Tee with good machinability.

Since 2008, due to the excellent corrosion resistance of dual-phase steel butt-welded pipe fittings, the market has been in high demand. It resists intergranular and crevice corrosion. It also shows significant pitting resistance. Chloride stress corrosion cracking is also easily handled with Duplex 2205 at 150 degrees Celsius.

This kind of steel can be continuously exposed to temperatures of about 1500¡ãF without appreciable scaling.Schedules :Sch.40 to Sch.XXs

There are different types of fittings such as bends, tees, crosses, reducers, caps and the WPHY 52 Elbow.In sour service wells, when hydrogen sulphide gas reacts with water, the hydrogen molecule gets deposited either on the pipes or fittings.

Stainless steel as 304 or 316 casting combines good corrosion resistance and high strength, which allows the reduction in wall thickness and weight of pipe fittings. Besides, it can withstand very high flow rates, making it capable to withstand long-term exposure to the elements in almost any environment.

ASTM A234 WP91 is low content alloy steel,so its hardness is higher than carbon steel,so its have better performance for the abrasive resistance and corrosion resistence.So the ASTM A234 WP91 pipe fitting is more widely used for the machine parts compared with carbon steel.