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As we know steel pipe coupling is a short pipe or tube that with threads on both ends, used to connect pipelines. So It is a kind of pipe fittings that with threaded connection, the advantage is easy for pipeline maintenance or to replace the broken pipe CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes What is API coupling used for? To be simple, it is the internally threaded cylinder for joining two lengths of threaded pipe. With this purpose, API 5CT standard coupling plays an important feature in connecting casing and tubing line pipes. On the contrary, the biggest different with general steel pipe coupling is: API coupling manufacturing processes is more rigorous, requires a precisely control in the different processes as blew listed. Raw material selection Mechanical test including tensile strength Impact test Chemical properties control Sulfide stress cracking test (for Material grades in C90 or T95) Size tolerances, OD, Wall Thickness, Length and Straightness Threads control, threads quantity per inch, threads angle etc (Premium threads option will be more rigorous) Heat treatment Additional markings Material certification Product Specification Level (PSL-2 or PSL-3) API coupling specification As we told, one of the important figure of API coupling, that it shall be made of seamless, another is the same grade as the casing or tubing pipe body, and these materials are used for manufacturing the blank coupling. Coupling should be processed from coupling blanks or from coupling stock, including manufactured in hot forging. (Except Grade C110 and Q125 couplings shall not be in hot forging. These two grades material are typically different from other grades, so if you are purchasing couplings in this grades, should pay more attention to read regulations in API 5CT spec.) API Coupling raw material type Coupling raw material called as or divided to: • Coupling stock • Coupling material • Coupling blanks • Accessory material All of these could be taken as the unthreaded material used to produce an individual coupling.

Sealing performance of pressure vessel flange 1. Bolt pretightening force Proper pretightening force can ensure that the gasket can retain a certain seal pressure when working, but too much pretightening force will crush or extrude the gasket, thus destroying the seal.The distribution of pretightening force on the gasket also affects the sealing performance. The method to ensure the uniform distribution of pretightening force is to increase the number of bolts under the condition of meeting the space required for tightening and removing bolts. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 2.gasket sealing performance Gasket is an important component of seal.Suitable gasket material should reflect that the gasket can not only produce the necessary elastic deformation under the action of appropriate pre-tightening force, but also not be crushed or extruded.When working, the distance between the flange sealing surface is extended, and the gasket material should have enough rebound ability, so that the gasket surface and the flange surface close contact, in order to continue to maintain good sealing performance. 3. Characteristics of flange sealing surface The type and surface performance of flange sealing surface play an important role in sealing effect.Concave and convex surface and tenon groove surface should be used when working conditions are more strict.The flatness of flange sealing face, the center line and verticality of sealing face and flange directly affect the stress uniformity of gasket and the good contact between gasket and flange.The surface roughness of the sealing surface of the flange should be adapted to the requirements of the gasket, and the surface is not allowed to have radial marks or scratches, let alone surface cracks. 4. Flange stiffness Insufficient stiffness will lead to excessive warping of the flange, resulting in seal failure.There are many factors affecting the flange stiffness, among which increasing the flange thickness, increasing the flange diameter and other methods can improve the flange stiffness, reduce the deformation, make the bolt force evenly transferred to the gasket, obtain uniform and enough specific sealing pressure, and improve the sealing performance.Reduce bolt force action of the moment arm, can reduce the flange bearing moment, is conducive to sealing. 5. Operating conditions Pressure vessel flange operating temperature, pressure and chemical and physical properties of medium also affect the reliability of flange connection.As the temperature increases, the medium viscosity decreases and the leakage tendency increases.High temperature increases the chemical and physical activity of the medium, resulting in corrosion and dissolution of gaskets and flanges.High temperature can also cause creep and stress relaxation of the ladyplugs, flanges and gaskets.

Carbon steel flange pipe fittings and looping flange pipe fittings Flanged pipe fitting is the connecting equipment of two large diameter pipes, usually two flanged pipe fitting pieces and several fastening bolts.Carbon steel flange fittings are different from looping flange fittings. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes Carbon steel flange pipe fittings are made of carbon steel flange pipe fittings.Low carbon steel has good plasticity and low strength. After adding an appropriate amount of carbon, it will become hard, and the plasticity will decrease and the strength will increase.The connection of flanged pipe fittings may need to bear very high tensile, compressive, torsional and shear strength. Carbon steel flanged pipe fittings are the best choice. Lopped flanged pipe fittings are the kind of flanged pipe fittings with lopped sleeves, that is, the flanged pipe fittings that can move. They are generally matched with water supply and drainage fittings. When the manufacturer leaves the factory, there is a piece of flange pipe fittings at both ends of the elastic joint, which is directly connected with the bolts in the pipeline and equipment in the project.Looping flanged pipe fittings are generally used in pipes, so that loosening bolts can rotate both sides of the pipe, and then tightening can be more convenient to disassemble the pipe.

1. Influence on the orientation of the softening zone.The melting temperature of refractory slag is high at the beginning and the range from melting to melting is small, so the softening zone in the blast furnace is low and the softening layer is thin, which is conducive to the smooth running of the blast furnace.When the slag in the furnace temperature is insufficient, the viscosity may increase, affecting the air permeability of the alloy tee, which is smooth.In the blast furnace, the soft melting zone is high, the soft melting layer is thick, and the air permeability of the material column is poor.On the other hand, easy furnace slag activity is good, is conducive to the blast furnace. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 2. Influence on the temperature of blast furnace hearth.Refractory slag absorbs more heat before melting and carries more heat when entering the hearth, which is conducive to raising the temperature of the hearth.On the contrary, fusible slag to improve the furnace temperature unlucky.Different furnace temperatures should be controlled when exercising different kinds of iron. 3. Affect the heat consumption and heat loss in high envy.Refractory slag to consume more heat, flow out of the furnace slag with more heat, heat loss increase, increase the coke ratio.Conversely, easy furnace slag is conducive to coke ratio reduction. 4. Influence on the life of alloy tee.When the melting temperature of slag is higher than the furnace wall temperature somewhere in the blast furnace, the slag at the furnace wall is easy to condense and form slag skin, which plays a maintenance effect on the furnace lining.The melting temperature of easy furnace slag is low, so the furnace wall here can not constitute the slag skin of the maintenance furnace lining, on the contrary, because its activity is too large to wash the furnace lining.

Precautions for the opening process of stainless steel tee fittings are as follows: CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 1. The ball valve of the stainless steel three-way pipe fitting is in the closed position, and the ball is dyed by the mechanical pressure of the valve stem and pressed tightly on the seat. 2. When the handwheel moves counterclockwise, the stainless steel three-way ball valve stem reverses the plot, and its bottom angular plane causes the ball to release the seat. 3. The valve stem is continuously drawn and dyed with the guide pin in the valve stem spiral groove to make the ball start to twist without friction. 4. Until the fully open position is reached, the stem is drawn to the limit position and the ball is twisted to the fully open position.

Do you know the common causes of flange leakage? The editor of PL Flange supplier china will show you a brief look! 1. Thermal expansion and contraction Due to the thermal expansion and contraction of the fluid medium, the bolts will expand or contract, so that the gasket will create a gap, and the medium will leak through pressure. 2. Corrosion effects Due to the long-term erosion of the gasket by the corrosive medium, the gasket will undergo chemical changes. The corrosive medium penetrates into the gasket, and the gasket begins to soften and lose its pressing force, causing flange leakage. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 3. Stress effect When the flange is installed, the butt joint of the two flanges is relatively standard. However, in the production of the system, the temperature of the pipe will change after the pipe enters the medium, which will cause the pipe to expand or deform, which will cause the flange to be subjected to bending load or shear force, which is easy to Cause the gasket to fail. 4. Wrong hole Wrong hole means that the pipe is concentric with the flange, but the distance between the bolt holes of the two flanges is relatively large. The wrong hole will cause stress on the bolt. If the force is not eliminated, it will cause shearing force on the bolt. If it takes a long time, the bolt will be cut off and the seal will fail. 5. Open your mouth Opening the mouth means that the flange gap is too large. When the flange gap is too large to cause external loads, such as axial or bending loads, the gasket will be impacted or vibrated, lose its pressing force, and gradually lose the sealing kinetic energy and cause failure. 6. Wrong words Wrong mouth means that the pipe and the flange are perpendicular, but the two flanges are not concentric. The flanges are not concentric, so that the surrounding bolts cannot pass freely into the bolt holes. When there is no other way, only reaming or using a smaller bolt to penetrate the bolt hole, and this method will reduce the tension of the two flanges. Moreover, the sealing surface line of the sealing surface is also deviated, so leakage is very easy to occur. The above is the editor of PL Flange supplier china: a brief introduction to the common causes of flange leakage and related knowledge.

1. Raw materials include strip coil, welding wire and flux.Strict physical and chemical inspection should be carried out before input. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 2. Single wire or double wire submerged arc welding is used for butt butt of strip steel, and active submerged arc welding is used for repair welding after rolling steel pipe. 3. The electric contact pressure gauge is used to control the pressure of the oil cylinder on both sides of the conveyor to ensure the smooth delivery of strip steel. 6. Weld gap control equipment is selected to ensure that the weld gap is satisfied with the welding requirements. Pipe diameter, staggered edge and weld gap are strictly controlled. 7. American Lincoln welding machine is used for single wire or double wire submerged arc welding for internal and external welding, so as to obtain stable welding specifications.

1.small and medium-sized steel, wire rod, steel bar, medium caliber steel pipe, steel wire and wire rope, etc., can be stored in the ventilated shed, but it is necessary to cover mat. 2. Some small steel, thin steel plate, steel strip, silicon steel sheet, small caliber or thin wall steel pipe, all kinds of cold rolled, cold drawn steel and high price, easy to corrosion of metal products, can be stored in storage. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 3. The storage site or warehouse for spiral pipe products should be in a clean and well-drained place, far away from factories and mines that produce harmful gas or dust.Remove weeds and all debris from the site and keep the steel clean. 4. Large section steel, rail, disgrace steel plate, large caliber steel pipe, forgings, etc., can be stacked in the open air. 5. In the warehouse, it shall not be stacked together with acid, alkali, salt, cement and other materials that are corrosive to steel.Different kinds of steel should be stacked separately, avoid mixing, avoid contact corrosion. . The warehouse should be selected according to geographical conditions. Generally, the general closed warehouse is used, that is, the warehouse with roof and wall, tight doors and Windows, and ventilation device. 7. The warehouse requires attention to ventilation in sunny days, attention to moistureproof in rainy days, and often adhere to the appropriate storage environment.

1. Analyze the working conditions of forgings and determine the mechanical properties The working conditions of forgings are complex.Working conditions analysis including stress (pull, pressure, bending, shear and torsion), the nature of the plant load, static load, dynamic load and alternating load (), load size and distribution, working temperature, low temperature, room temperature, high temperature, temperature), environmental medium (lubricant, water, acid, alkali, salt, etc.), special performance requirements for forgings (electric, magnetic, heat, radiation, radiation), etc.The mechanical properties of forgings are determined on the basis of a comprehensive analysis of working conditions. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 2. The mechanical properties of forgings should be transformed into the determination of material performance indicators With the requirements of the performance of parts, small can be selected immediately.Performance requirements will also need to be indexed and quantified through analysis, calculation or simulation tests.For example, the performance requirement of “high hardness” should be converted to “> 60HRC” or “62-65HRC”.This is the most critical and difficult step in selecting candidates.It is necessary to calculate the stress distribution according to the size of the forgings and the load borne at work, and then determine the specific value of the performance index by the relationship between the working stress, service life or safety and the material performance index. 3. Pre-selection of materials According to the requirements of forgings material performance index data refer to relevant manuals, find suitable materials, judging and selecting materials by the rough application range of these materials.For forgings designed with pre-selected materials, the working stress after considering the safety factor must be less than the determined component energy index data value.Then compare the feasibility of processing technology and manufacturing cost, the material of the optimal scheme as the selected material.Through experiment and research, the selection of high, medium and low grade steel is concentrated in a few steel grades.This not only helps to improve the quality of raw materials, but also makes the forging manufacturing process easy to control. check more

1. After heat treatment, the metallographic structure of high pressure hot drawn tee pipe is the same as that of raw material;Surface hardness;Alloy steel is HB125~197. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes 2. No cracks are allowed on the surface of high pressure hot drawn tee pipe fittings;The surface is smooth, scar, wrinkle and other defect depth is not more than 1.6mm;The depth of surface scales and heavy skin is not more than 0.4mm. 3. Geometrical dimensions and deviations of high pressure hot drawn tee pipe fittings, such as inner and outer diameters of ports, inner and outer bevels, deviation of end face slope and height of branch pipes, should meet the requirements of drawings;The butt wall thickness of the product port shall not be less than the small value allowed by the nominal wall thickness of the connecting pipe, and the wall thickness of the other parts shall not be less than 90% of the design wall thickness, and the small part shall not be less than 87.5%.The ovality outside the port shall not be greater than 6% of the nominal outer diameter;When the port wall thickness is greater than 1.15 times the pipe wall thickness, the inner groove shall be remachined according to the standard.

Wilson pipeline Supplying /Distribution  of Flanges ​ Types                                               :   Slip-On Flanges, Weld Neck Flanges, Blind Flanges, Lap Joint Flanges,Threaded                                                                                      Flanges, Socket Weld Flanges, Reducing Flanges  and Orifice Flanges. Sizes                                                 :   1/2″ ~ 72″ (larger size available upon request) – All Wall Thicknesses & Schedules. Pressure (ASTM)                          :   150#, 300#, 600#, 900#, 1500#, 2500# Pressure (DIN/EN)                      :  PN2.5, PN6,PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320,PN400 Standards                                      :  ANSI /ASME /AWWA /API /MSS /DIN /EN /BS /JIS/KS /GB /GOST and UNI Coating/Surface Treatment  :  Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip                                                                                     Galvanized. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes ​ Our flanges comply to NACE MR0175, NACE MR0103, ISO 15156-2 Materials: The most common materials for pipe flanges (forged grades) are: ASTM A105 (carbon steel high temperature to match A53/A106/API 5L pipes), A350 Grades LF1/2/3 (carbon steel low temperature to match A333 pipes), A694 Grades F42 to F80 (high yield carbon steel to match API 5L pipe grades), ASTM A182 Grades F5 to F91 (alloy steel flanges to match A335 pipes), A182 Grade F304/316 (stainless steel flanges to match A312 SS pipes), A182 Gr. F44/F51/F53/F55 (duplex and super duplex to match A790/A928 pipes) and various nickel alloy grades (Inconel, Incoloy, Hastelloy, Monel). ​ CARBON STEEL FLANGES: ASTM A105 (high-temperature carbon steel) to match A53, A106, API 5L carbon steel pipes ASTM A350 LF1, LF2, LF3 (low-temperature carbon steel) to match ASTM A333 pipes ASTM A694 F42, F52, F60, F65 (high-yield carbon steel to match API 5L X42, X52, X60, and X65 steel pipes. ASTM A694 F46, F48, F50,F56, 70 (High -yield carbon steel flanges) CSA Z245.12 (359 CAT2 – 483 CAT2) ​ STAINLESS STEEL FLANGES: The key elements that differentiate stainless steel materials for flanges, compared to other grades, are the Nickel (Ni), Chrome (Cr), and Molybdenum content (Mo). ASTM A182 F304, F304H, F304L, F304N, F304LN, F309H, F310, F310H, F31MoLN, F316, F316H, F316L, F316LN, F316Ti, F317, F317L, F321, F321H, F347, F347H, F348, F348H ​ Recommended service for stainless steel flange materials: Material                                  Material Group                                                     Recommended Service A182-F304                           18% Cr, 8% Ni Stainless Steel                        Corrosive services and atmospheres from                                                                                                                         -450°F to 1000°F (-268°C to 537°C) A182-F316                           18% Cr, 8% Ni, 2% Mo Stainless Steel        High resistance to corrosion from -450°F to                                                                                                 1000°F (-268°C to 537°C). ALLOY STEEL FLANGES: Alloy flange materials (chrome-moly) have higher chrome and molybdenum content than carbon steel flanges. Alloy steel flange materials suit high temperature and high-pressure applications and improved resistance to corrosion when compared to regular carbon steel flanges grades. ​ ASTM A182 alloy flanges are extremely ductile, strong and tough and easy to weld and offer oxidation and scaling resistance. These grades match with Alloy Steel Pipe A335 Gr. P5, P9, P11, P22, P91. ​ Recommended service for alloy steel flange material grades ASTM A182: ​ Material             Material Group                                                                      Recommended Service A182 F1             C-1/2 Mo Low Alloy Steel                                                  Non-corrosive applications Including water, oil,  and                                                                                                                                               gases  at temperatures between -29 ~593ºC* (Not                                                                                                                                                     prolonged use > 470ºC). A182 F2             0.75% Ni; Mo; 0.75% Cr Low Alloy Steel                      Non-corrosive applications including water, oil and gases                                                                                                                                     at  F2:-29ºC ~ 538ºC, WC5: -29ºC ~ 575ºC A182 F11         1/4% Chrome; 1/2% Moly Low Alloy Steel                  Non-corrosive applications including water, oiland gases                                                                                                                                     at temperatures between -30ºC (-20ºF) and +593ºC                                                                                                                                                 (+1100ºF). A182 F222      1/4% Chrome Low Alloy Steel                                          Non-corrosive applications including water, oil and gases                                                                                                                                     at temperatures between  -30ºC (-20ºF) and +593ºC                                                                                                                                                 (+1100ºF). A182 F5/F5a  5% Chrome; 1/2% Moly, Medium Alloy Steel            Mild corrosive or erosive applications as well as non-                                                                                                                                              corrosive applications at temperatures between -30ºC                                                                                                                                          (-20ºF) and +650ºC (+1200ºF). A182 F9            9% Chrome; 1% Moly, Medium Alloy Steel                Mild corrosive or erosive applications as well as                                                                                                                                                          non- corrosive applications  at temperatures between                                                                                                                                            -30ºC (-20ºF) and +650ºC (+1200ºF). A182 F91         9% Chrome; 1% Moly; V-N, Medium Alloy Steel      Mild corrosive or erosive applications as well as non-                                                                                                                                                corrosive applications at  temperatures between -30ºC                                                                                                                                          (-20ºF) and +650ºC (+1200ºF). DUPLEX & SUPER DUPLEX FLANGES: Duplex steel (ASTM A182 2205) is an extremely corrosion resistant, work hardenable stainless steel, whose microstructure consists of a mixture of austenite and ferrite phases. ​ The most widely used grade for Duplex flange is 2205, due to its superior resistance to corrosion and mechanical strength. The designation “2205” is related to the chemical composition of this material, which features 22% of chromium and 5% of nickel. Super Duplex flange show an even superior strength and a higher corrosion resistance than standard duplex steel (and austenitic grades, of course). ​ The main difference between a duplex and a super duplex grade is the addition of copper to the alloy (in addition to increased amounts of Chromium, Moly, and Nickel). The addition of copper gives Super Duplex Stainless Steel an improved resistance to hot chlorides and strong reducing acids, like sulphuric acid, compared to a standard Duplex grade. ​ Whilst UNS S31803, UNS 32205 (duplex) and UNS S32750, UNS S32760 are standard designations, most manufacturers of superalloys attribute proprietary names to these steels (example UR52N+ is a Usinor/Arcelor Super Duplex steel, Ferralium, Zeron, Sandvik SAF 2205 22Cr, etc). ​ NICKEL ALLOY FLANGES: Inconel® Flanges Inconel® is a family of austenite nickel-chromium-based superalloys. Inconel® alloys are oxidation and corrosion resistant materials well suited for service in extreme environments subjected to pressure and heat. When heated, Inconel® forms a thick, stable, passivating oxide layer protecting the surface from further attack. Inconel retains strength over a wide temperature range, attractive for high temperature applications where aluminum and steel would succumb to creep as a result of thermally induced crystal vacancies. Inconel’s high temperature strength is developed by solid solution strengthening or precipitation strengthening, depending on the alloy. ​ We offer flanges in the following grades: ALLOY 600 N06600 B366 (REF), B/SB 564, AMS 5665 B/SB 166 ALLOY 601 N06601 AMS 5715 B/SB 166 ALLOY 625 N06625 B366 (REF), B/SB 564, AMS 5666 B/SB 446 ​ Incoloy® Flanges Incoloy® refers to a range of superalloys produced by the Special Metals Corporation group of companies. They are mostly nickel-based, and designed for excellent corrosion resistance as well as strength at high temperatures; there are specific alloys for resistance to particular chemical attacks (e.g. alloy 020 is designed to be resistant to sulphuric acid, DS to be used in heat-treating furnaces with reactive atmospheres and many heat cycles) ​ We offer flanges in the following grades: ALLOY 800 N08800 B 366 (REF), B/SB 564, AMS 5766 B/SB 408 ALLOY 800H N08810 B 366 (REF), B/SB 564 B/SB 408 ALLOY 800HT N08811 B 366 (REF), B/SB 564 B/SB 408 ALLOY 825 N08825 B 366 (REF), B/SB 564 B/SB 425 ALLOY C20 (F20) N08020 A 182, B 366, B/SB 462, B/SB 564 B/SB 472, B/SB 473 ALLOY 330 N08330 B 366 (REF), AMS 5716 B/SB 511, B/SB 512 ​ Monel® and Copper Nickel Alloy Flanges Monel is a group of nickel alloys, primarily composed of nickel (up to 67%) and copper, with small amounts of iron, manganese, carbon, and silicon. Stronger than pure nickel, Monel alloys are resistant to corrosion by many agents, including rapidly flowing seawater. They can be fabricated readily by hot- and cold-working, machining, and welding. Monel alloy 400 is a binary alloy of the same proportions of nickel and copper as is found naturally in the nickel ore and is therefore considered a puritan alloy. ​ It is a very expensive alloy, with cost ranging from 5 to 10 times the cost of copper and nickel, hence its use is limited to those applications where it cannot be replaced with cheaper alternatives. Compared to carbon steel, piping in monel is more than 3 times as expensive. ​ We offer flanges in the following grades: ALLOY 400 N04400 B366, B/SB 564, QQ-N-281, MIL-F-23509 B/SB 164 70/30 CUNI C71500 MIL-C-15726, MIL-C-24679 B/SB 151 90/10 CU-NI C70600 MIL-C-15726, MIL-C-24679 B/SB 151 ​ Hastelloy® Flanges 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. The attributes of HASTELLOY® alloys include high resistance to uniform attack, outstanding localized corrosion resistance, excellent stress corrosion cracking resistance, and ease of welding and fabrication. ​ B-3® alloy possesses outstanding resistance to non-oxidizing acids, such as hydrochloric acid and sulfuric acid. The advantages of B-3® alloy over previous B-family alloys are enhanced thermal stability and improved fabrication characteristics. ​ The most versatile of the HASTELLOY® alloys are the “C-type” alloys. C-2000® alloy combines outstanding resistance to oxidizing media with superior resistance to non-oxidizing environments and represents a true performance breakthrough for chemical process equipment applications.  C-22® alloy is particularly resistant to pitting and crevice corrosion; it has been used extensively to protect against the most corrosive FGD systems and the most sophisticated pharmaceutical reaction vessels. ​ G-30® alloy has been very successful as phosphoric acid heat exchanger tubing and for other process components in the fertilizer industry. G-35® alloy was designed as an improved version of G-30 alloy in these applications.  The high chromium content of both of these alloys make them the premier choices for strong oxidizing solutions and mixed acid pickling services. ​ We offer flanges in the following grades: HAYNES 230 – 4 N06230 B/SB 564, AMS 5891 B/SB 572 HAYNES 242 – 4 N10242 B564, HAYNES PS-6085-2 B/SB 573 7-MO PLUS (F52) – 3S32950 A/SA182 A/SA 479 HASTELLOY-B3 – 4N10675 B462, B366 (REF), B/SB 564 B/SB 335 HASTELLOY-C22 – 4N06022 B462, B366 (REF), B/SB 564 B/SB 574 HASTELLOY-C276 – 4N10276 B/SB462, B/SB 564, AMS 5750 B/SB 574 HAST C-2000 – 4N06200 B/SB462, B/SB 564 B/SB 574 HASTELLOY-G30 – 4N06030 B/SB 462, B366 B/SB 581 Hastelloy® Family of Corrosion-Resistant Alloys HASTELLOY® B-3® alloy Same excellent resistance to hydrochloric acid and other strongly reducing chemicals as B-2 alloy, but with significantly better thermal stability, fabricability and stress corrosion cracking resistance. ​ HASTELLOY® C-22® alloy Better overall corrosion resistance in oxidizing corrosives than C-4, C-  276 and 625 alloys. Outstanding resistance to localized corrosion and  excellent resistance to stress corrosion cracking. Best alloy to use as universal weld filler metal to resist corrosion of weldments. ​ HASTELLOY® C-276 alloy                       Versatile, corrosion resistant alloy. Very good resistance to reducing, and                                                                                                     mildly oxidizing corrosives. Excellent stress corrosion cracking                                                                                                                           resistance with very good resistance to localized attack. HASTELLOY® C-2000® alloy                 Most versatile, corrosion resistant alloy with excellent resistance to                                                                                                                   uniform corrosion in oxidizing or reducing environments. Excellent                                                                                                                     resistance to stress corrosion cracking and superior resistance to                                                                                                                   localized corrosion as compared to C-276 alloy. HASTELLOY® G-30® alloy                      Many advantages over other metallic and non-metallic materials in                                                                                                                 handling phosphoric acid, sulfuric acid, nitric acid, fluoride environments                                                                                                     and oxidizing acid mixtures. HAYNES® 242® alloy.                               Age-hardenable alloy with excellent strength to 1300°F (705°C), low                                                                                                                 thermal expansion characteristics, good oxidation resistance to 1500°F                                                                                                       (815°C) and excellent fabricability. Also has excellent resistance to high-                                                                                                       temperature fluorine and fluoride-bearing environments. Used in gas                                                                                                             turbine seal rings, containment containment structures and high-                                                                                                                     strength fasteners. Also used in fluoropolymer plastics production and                                                                                                           CPI applications. ​ TITANIUM FLANGES: Titanium alloys are known to be light weight alloys with excellent corrosion resistance, very high tensile strength and toughness. ​ Grade 2 and 5  the most widely used of all the titanium grades. It is a medium to high strength general-purpose alloy. It is also referred to as an alpha-beta alloy. This alloy is fully heat treatable in sections measuring up to 15mm. It can be heated up to 400°C (750°F), and has good tensile properties at room temperature, creep resistance up to 325°C and very good fatigue strength. It is also known to be highly resistant to general corrosion in sea water. We also offer grade 12, which retains superior strength at higher temperatures and is known for its malleability and weldability. Titanium is often used in applications requiring high temperature and pressure service but with reduced weight. ​ We offer flanges in the following grades: Titanium Gr, 2 Titanium Gr. 5 Titanium Gr. 12

The company manufactures, supplies and distributes a wide range of fittings, such as elbows, tees, reducers, caps, bends and many others from 1/2″ to 120″ diameter in all material grades, according to international standards and clients’ requirements. The target markets can be divided into up/mid/downstream, which includes onshore and offshore/subsea plants, oil & gas pipelines, refineries, and power generation such as nuclear and thermal power plants. The company manages the whole cycle of production, distribution and after-sales services in all these markets. EPC companies represent the largest part of its capacity. Close co-operation with clients gives the company the opportunity to develop the market and the products in line with trends in the field of energy. CANGZHOU WILSON PIPELINE manufacture of  flange fittings&pipes Standard Fittings Elbows Up to 120″ All Grades Seamless and welded (cold formed, hot formed and by mandrel) Equal And Reducing Tees Up to 120″ All Grades Seamless and welded (cold formed and hot formed) Concentric and Eccentric Reducers Up to 120″ All Grades Seamless and welded (cold formed and hot formed) Caps Up to 120″ All Grades Seamless (cold formed and hot formed) Special Fittings Reducing elbows Up to 60″ All Grades Seamless and welded Special radius bends (3D) Up to 56″ All Grades Seamless and welded segmentable Special radius bends (2,5D 3D 4D 5D 7D 1OD 18D) Up to 60″ All Grades Seamless and welded (hot induction and cold formed) Barred tees Up to 120″ All Grades Seamless and welded (cold formed and hot formed) Special flow tees Up to 120″ All Grades Seamless and welded Equal and reducing crosses Up to 120″ All Grades Seamless and welded Equal and reducing laterals Up to 120″ All Grades Seamless and welded Special Products Headers and extruded manifolds Up to 120″ All Grades Seamless and welded Split tees Up to 120″ All Grades Seamless and welded segmentable “Y” pieces Up to 120″ All Grades Seamless and welded (hot induction and cold formed) Special Products as per customer drawings. Materials used and related International Standards Design Codes Manufacturing Standards ASME B31.1 -ASME B31.3 ASME B16.9-ASME B16.25 ASME B31.4-ASME B31.8 MSS-SP43 – MSS-SP75 EN 13445 – 13480 – 12952 (former BS PD 5500 Swedish ordinance AFS 1994:39 ) DIN 2605 – 2606 – 2615 2616 – 2617 – BS 1640 DIN 2413 – TRD301 GOST 17374 – 17375 17376 – 17377 – 17378 17379 – 17380 AD 2000 Merkblatt B2-B3-B9 EN 10253 STOOMWEZEN rules for pressure vessels ISO 15590 MSS- SP-75 BS/EN 14870 CARBON AND ALLOY STEEL FOR ROOM, MODERATE AND ELEVATED TEMPERATURES STAINLESS STEEL HIGH YIELD STEEL FOR PIPELINE AND OFFSHORE CARBON AND ALLOY STEEL FOR LOW TEMPERATURE SERVICE AUSTENITIC/FERRITIC STAINLESS STEEL COPPER ALLOY NICKEL ALLOY TITANIUM ALLOY ASTM / ASME A/SA 106 ASTM / ASME A/SA 312: TP304 -TP304L -TP304H TP304LN -TP304N TP316-TP316L-TP316H TP316LN -TP316N -TP317 TP317L -TP321 H -TP347 TP347H – S31254 and equivalent grades API 5L: Gr. X42 – X46 – X52 X60 – X65 – X70 – X80 ASTM / ASME A/SA 333: Gr. 6, Gr. 3, Gr. 8 and equivalent grades ASTM / ASME A/SA 790: UNS 31803 (duplex) – UNS 32750 (superduplex) UNS 32760 (superduplex) UNS 32550(superduplex) and equivalent grades Copper-nickel ASTM /ASME B/SB 466: UNS C70600 (Cu Ni 90/10) UNS C71500 (CuNi 70/30) and equivalent grades. ASTM / ASME B/SB 366: UNS N04400 – UNS N06600 UNS N06625 – UNS N08020 UNS N08800 – UNS N08811 UNS N08825 – UNS N10276 and equivalent grades. ASTM / ASME B/SB363: WPT2-WPT12 and equivalent ASTM / ASME A/SA 106 ASTM / ASME A/SA 403: WP304 -WP304L -WP304H WP304LN -WP304N WP316 -WP316L-WP316H WP316LN -WP316N WP317 -WP317L -WP321 WP321 H -WP347 WP347H -WPS31254 EN 10208-2: L245NB L290NB – L360NB – L415NB L360QB – L415QB – L450QB L485QB – L555QB – L360MB L415MB – L450MB L485MB and equivalent grades. ASTM / ASME A/SA 420 WPL6 -WPL3 ASTM / ASME A/SA 815: UNS 31803 (duplex) ASTM / ASME A/SA 335: Gr.1 – Gr.11 – Gr.12 – Gr.5 Gr.22 – Gr.9 – Gr.91 RCC-M: CL 1 – CL2 – CL3 grades Z2CND17.12 Z2CN18.10 – Z2CND18.12N (other grades can be supplied upon request) ASTM A860/MSS-SP75: WPHY 42 WPHY 46 -WPHY 52 -WPHY 60 -WPHY 65 WPHY 70 grades-WPHY 80 only as per MSS-SP75 ASTM / ASME A234: WPB WPC-WP1 -WP11 -WP12 WPS -WP22 -WP9 -WP91 WP92 ASTM A774: TP304L TP316L TP317L -TP321 TP347 EN 10216-2: P195GH P235GH – P265GH 20MnNb6 – 16Mo3 – 8MoB5 4- 14MoV63 1 0CrMoS-5 – 13CrMo4-5 10CrMo9-10 15NiCuMoNb5-6-4 X11 CrMo5 – X11 CrMo9-1 X1 0CrMoVNb9-1 X1 0CrWMoVNb9-2 X20CrMoV11-1 and equivalent grades Equivalent grades of EN 10253-3 EN 10253-4 (former AFNOR-DIN-BS equivalent grades). EN 10253-1 EN 10253-2 RCC-M: CL2 – CL3 – NC grades P265GH – P280GH P295GH – P355NH -TU42C AE250B1 (other grades can be supplied upon request).