Welding Neck Flange-manufacture,factory,supplier from China
(Total 24 Products for Welding Neck Flange)
Product Features：1. Corrosion resistance: The stainless steel material itself already has the characteristics of corrosion resistance, so the stainless steel high neck flange can avoid rust, corrosion and other problems in a highly corrosive environment. 2. High strength: Stainless steel high neck flanges are usually made of high-quality 304/316L and other stainless steel materials, so they have good strength and pressure resistance. 3. Good integrity: Stainless steel high neck flanges usually adopt integral molding or forging structure during production.
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High neck flange: compared with the butt welding flange, the welding workload is large, the welding rod consumption is high, can not withstand high temperature and high pressure and repeated bending and temperature fluctuations, but the field installation is more convenient, can omit the weld film detection process, and is more popular.
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Stainless steel flanges also have high strength and durability. Stainless steel material has good mechanical properties, so that the flange can withstand greater pressure and tension, to ensure the stability and safety of the pipeline system. Stainless steel flanges can also be used for a long time without easy damage, reducing the frequency of maintenance and replacement, and reducing the cost of use.When selecting stainless steel flanges, it is necessary to take into account the working conditions and requirements of the piping system.
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The full name of die forging is die forging. The heated blank is placed in a forging die fixed on the die forging equipment and is forged into shape. The basic processes of die forging: blanking, heating, pre-forging, final forging, skin punching, trimming, tempering, and shot blasting. Commonly used processes include upsetting, lengthening, bending, punching, and forming. Commonly used die forging equipment: die forging hammer, hot die forging press, flat forging machine and friction press, etc.
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The first thing to look at is the height of the protrusion (convex surface), and the second thing is to see whether there is an anti-slip ring on the protruding surface (convex surface). The former is, but the latter is not. Moreover, the two flange connection forms are also different.
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The neck flat welded flange, like the plate flat welded flange, is also a flange that extends the steel pipe, pipe fittings, etc. into the flange and connects with the equipment or pipe through the fillet weld.2, sealing formThe sealing surface forms of flat welded flange with neck are:Convex surface (RF), concave surface (FM), convex surface (M), tenon surface (T), groove surface (G), full plane (FF).Diameter range of neck flat welded flange: DN10~DN600.3.
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Socket flanges are a type of connecting pipe fitting, which are formed by inserting the end of a pipe into a flange ring ladder and welding it to the pipe end and outer side. Depending on whether there is a neck, socket flanges are divided into two types: with and without a neck.Socket flanges are mainly used for pipe connection. Due to their structural characteristics, they have good rigidity and sealing performance and can be used in applications with pressures ranging from 1.0 to 10.0 MPa.
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Flat welded flange with neck belongs to the national standard flange system. It is one of the manifestations of the national standard flange (also known as GB flange), and is one of the commonly used flanges on equipment or pipelines. The neck height of flat welded flange with neck is low, which improves the stiffness and bearing capacity of the flange.
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Application Scenarios:Oil and natural gas industry: In the extraction, storage, transportation, processing and use of oil and natural gas, a large number of flange connections are often required, such as oil wells, pipelines, oil tanks, storage tanks, etc.
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American standard carbon steel flange neck flat welding flange SO flange ensures qualityIn pipeline engineering, flanges are mainly used for the connection of pipelines. In the pipelines that need to be connected, install a flange. Low-pressure pipelines can use wire flanges, and welding flanges can be used with pressures above 4 kg. Add a sealing point between the two flanges and tighten them with bolts. Flanges for different pressures have different thicknesses and use different bolts.
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Butt welded flange is generally made by forging or forging rolling process. When the steel plate or section steel is used, the following requirements must be met: 1, welding flange should be ultrasonic detection, no delamination defects; 2. It should be cut into strips along the rolling direction of the steel, bent and welded into a ring, and make the surface of the steel form a cylinder of the ring. The steel plate shall not be machined directly into a neck butt welding flange; 3, the butt weld of the ring should adopt full penetration weld; 4.
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Large diameter series, stainless steel series, carbon steel series, alloy steel series, our factory's main products include: neck flange, butt welding flange, plate flat welding flange, flat flange flat welding ring loose flange, Welding ring loose flange, integral flange, forged flange, flange cover, please call us for inquiries and look forward to cooperating with you.The execution standards of butt welding flanges are: chemical standard HG20592-2010, national standard GB/T9119, petrochemical standard SH/T3046, mechanical standard JB/T81-94, etc.
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Application Scenarios:Power industry: Various thermal and steam pipelines in the power industry need to be connected using socket welding flanges to ensure the safety and stability of the pipelines.Pharmaceutical industry: Various drugs and materials in the pharmaceutical industry need to be transported through pipelines, and socket welding flanges are the ideal choice for connecting these pipelines.Shipbuilding: Shipbuilding involves a large number of pipeline connections, and socket welding flanges play an important role in these pipeline connections.Mechanical manufacturing: Various pipelin
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Petroleum and chemical industry: In the petroleum and chemical industry, welding end flanges are widely used due to the fact that pipelines and equipment generally transport liquids or gases.
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The welding end flange has multiple functions, the main ones being:Connecting pipe: Welding end flanges are commonly used parts in pipe connection, which can connect two pipes together to form a closed transmission system.Sealing medium: The sealing performance of the welding end flange is good, which can effectively prevent medium leakage and ensure the sealing performance of the pipeline system.Support and fixing: The welded end flange has high connection strength and can withstand large pressures and loads.
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The welding end flange is a pipe fitting used to connect pipes with pipes, pipes with fittings, pipes with equipment, etc. It is a disc-shaped part that is most commonly used in pipeline engineering. The welding end flange has holes, and bolts are used to tightly connect the two flanges, with gaskets between them for sealing. The welding end flange connection is a convenient and fast connection method that can withstand high pressure and is widely used in the fields of petroleum, chemical, natural gas, power station, metallurgical pipeline, etc.
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Flat welding flange connection is the two pipes, pipe fittings or equipment, first fixed on a flange, between the two flanges, plus flange pad, bolted together to complete the connection. Some pipe fittings and equipment have their own flanges, which are also flange connections. Flat welded flanges are divided into threaded connection (wire connection) flanges and welded flanges. Low pressure small diameter wire flange, high pressure and low pressure large diameter are welded flange, different pressure flange thickness and connection bolt diameter and number are different.
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The 16mn in the 16mn flange is made of carbon steel metal and is a low alloy flange. It has the advantages of good overall performance, good low temperature performance, cool stamping performance, welding performance, and good machinability. Widely used in water conservancy, electric power, power stations, pipe fittings, industry, pressure vessels and other industries.
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SA105 B16 is a widely used low-alloy steel material in the manufacturing of valves and pipeline connection components. It has excellent mechanical properties, low-temperature resistance, and welding performance, able to meet the needs of various complex working environments.Through normalizing treatment, the tensile strength of SA105 B16 can reach the range of 485MPA to 655MPA, exhibiting good mechanical properties. It can undergo impact testing at -46°C, suitable for working in low-temperature environments.
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1, stainless steel flange in welding, subject to repeated heating precipitation carbide, will reduce the corrosion resistance and mechanical properties of stainless steel flange.2, stainless steel flanges should be kept dry when used, titanium calcium type should be dried at 150℃ for 1 hour, low a hydrogen type should be dried at 200-250℃ for 1 hour (can not be repeated drying, otherwise the coating is easy to crack and peel), to prevent the electrode coating sticky oil and other dirt, so as not to increase the carbon content of the weld and affect the quality of stainless steel flanges.3, chr
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The material of the welding end flange can be selected according to the application requirements and working environment. Common materials include carbon steel, stainless steel, and alloy steel.Carbon steel welding flanges have good corrosion resistance and toughness, and are suitable for low-pressure and low-temperature media such as air, water, and petroleum. Stainless steel welding flanges have good corrosion resistance and high temperature performance, and are suitable for media with high corrosion resistance requirements, such as acids, alkalis, and seawater.
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The manufacturing process of carbon steel socket flange generally includes the following steps:1.Material procurement: First of all, high-quality carbon steel plates need to be purchased, cut and processed according to specifications and requirements.2.Punching: Punch the processed carbon steel plate for inserting the flange.3.Bending: Bending the punched carbon steel plate into the shape of the socket flange.4.Welding: Weld the bent plate to fix it into the shape of the socket flange.5.Surface treatment: The surface of the welded socket flange is polished and anti-rust to increase its corrosi
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Loose-jacketed flanges are commonly known as loose-jacketed flanges, partial welding ring loose-jacketed flanges, flanges flanges and butt welding loose-jacketed flanges. It is often used when the medium temperature and pressure are not high and the medium is highly corrosive. When the medium is corrosive, the part of the flange in contact with the medium (flanged nipple) is a corrosion-resistant high-grade material, such as stainless steel and other materials, and the external use of low-grade materials such as carbon steel materials to clamp it to achieve sealing.
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The SA-105 flange is typically made of high-chromium and nickel stainless steel, which exhibits excellent corrosion resistance. The main chemical components include chromium (Cr), nickel (Ni), and molybdenum (Mo), which together enhance the material's corrosion resistance and mechanical strength.The SA-105 flange has high tensile strength and yield strength, enabling it to withstand high pressure and vibration.
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Relate News
Flange is a disk-shaped part, z is common in pipeline engineering, flanges are used in pairs. In pipeline engineering, the flange is mainly used for pipeline connection. In the pipeline that needs to be connected, a variety of installation of a piece of flange, low-pressure pipeline can use silk flange, more than 4 kilograms of pressure use welding flange. The gasket is added between the two pieces of flanges, and then tightened with bolts.
Carbon steel flange in accordance with national standards require the size, tolerance range and other production of the flange, the difference between the flange is not produced according to standard sizes also known as the second standard flange (some people call non-standard flange is incorrect), usually some unscrupulous businessmen will reduce the thickness of the flange, the outer diameter of the two dimensions to achieve the purpose of saving materials, and the use of scrap steel or steel processing flange of the edge material.Usually this steel is the chemical composition and mechanical
Another layer of national standard flange means: according to the national standard requirements of the size, tolerance range, etc.
Carbon steel flange another layer of meaning: according to the national standard requirements of the size, tolerance range, etc.
Carbon steel flanges are precise in shape and size, with low machining and low cost. However, cast flanges will have holes, cracks and impurities, and the internal structure of the casting is poor. The advantage is that it can have more complex shapes and be produced at low cost. Plain carbon steel flanges are less susceptible to rust and have a denser structure because they have a lower carbon content than cast flanges. They can withstand shear and tensile forces better and have better mechanical properties than forged flanges.
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