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Dimensions & Weight Of EN 1092-1 PN40 Type 11 Welding Neck Flange Rated DiameterFlange DimensionNeck SizeRaised FaceScrews ParameterWeight FlangeACDTHXBRDGfhThreadBolt holesKG/PCS1521,365951638322,004645214M1240,7682026,9751051840402,304658214M1241,0902533,7851151840462,604668214M1241,3003242,41001401842562,606678218M1641,9104048,31101501845642,606788318M1642,1505060,31251652048752,9068102318M1642,8506576,11451852252902,90610122318M1683,6808088,916020024581053,20812138318M1684,780100114,319023524651343,60812162322M2086,460125139,722027026681624,00812188326M2488,860150168,325030028751924,501012218326M24811,700200219,132037534882446,301016285330M271221,000250273,0385450381053067,101218345333M301234,200300323,9450515421153628,001218410433M301647,600350355,6510580461254088,801220465436M331669,300400406,45856605013546211,001220535439M361698,000450457,06106855713550012,501220560439M3620105,000500508,06707555714056214,201220615442M3920130,000600610,07958907215066616,001220735548M4520209,000 If any inquiry about products, please feel free to contact us sales@wilsonpipeline.com EN 1092-1 Type 11 Welding Neck Flange: EN 1092-1 PN6 TYPE11 Welding Neck Flange EN 1092-1 PN10 TYPE11 Welding Neck Flange EN 1092-1 PN16 TYPE11 Welding Neck Flange EN 1092-1 PN25 TYPE11 Welding Neck Flange EN 1092-1 PN40 TYPE11 Welding Neck Flange

Stainless steel, an alloy of iron that contains ten percent chromium, is a very resilient material used in a wide range of household and industrial products. It’s resistant to rust and tarnish due to the chromium film on its surface. If this chromium film is removed, the utensil will begin to rust. In the event that your stainless steel flange do have rust on it, follow these instructions to remove it. Seven steps of stainless steel flange derusting 1, before the first stainless steel flange surface rust removing all visible dirt, and then use solvents or cleaning agents to remove oil. 2, with the shovel knife to tungsten steel stainless steel flanges large area corrosion. 3, with scraper and wire brush to remove the stainless steel flange corner of the corner of the corrosion. 4, with a file to remove surface of stainless steel flange welding slag and other protrusions and various burrs. 5, the use of cloth and steel wire brush to clean stainless steel flange. 6, with a clean cloth, but also can be used to clean the solvent and the solvent to clean and timely painting primer. 7, pay attention to for yet fail the toughness of the coating may be preserved, and emery cloth polishing old paint surface, the coating defect polished axe shape and clean after direct painting.

Stainless steel and carbon steel composite flange production generally have two ways: one is the use of explosive or rolling method will be made of stainless steel plate and carbon steel composite plate, and then made into a flange. Stainless steel flanges made of this method are good. However, the requirements of the composite technology, composite equipment and personnel are very high, the general production of manufacturers can not do, and the cost is higher; two is on the carbon steel flange sealing surface, welding on stainless steel plate, and then in the lathe Colonel level. This method makes the composite flange use effect is not good, but the technology, equipment and personnel requirements is not high, the general factory can do, and can use the stainless steel plate of the side of the waste, the cost is lower. I plant in 1993 began to use this method to produce stainless steel flange / carbon steel composite flange. Its production method is as follows: to prepare a piece of rough or carbon steel flange without a car sealing surface as a base material. With 4 ~ 6mm stainless steel plate splicing flange sealing surface, outer diameter and the outer diameter of the original flange sealing surface, a small diameter of 2 ~ 3mm, easy to weld flange and pipe. In the stainless steel seal surface of the center line, the drill several holes, and then spent a few hand vise the stainless steel flange sealing surface of the clip to ready the pipe flange on the substrate. Good fitting, do not have a gap. To be sealed stainless steel surface and the pipe flange base leveling, clamping, first spot, by full welding note wall thickness of flange not produced large deformation. If the pipe flange is connected to the pipe should be in the pipe flange of the inner ring welded on a corresponding stainless steel pipe.  Stainless steel and carbon steel composite flange is based on the principle of the pipe flange sealing surface and the medium contact surface of stainless steel plate and stainless steel tube, so that the corrosion medium does not contact the pipe flange of the steel parts, so as to get the same service life with stainless steel flange. Coupled with the composite flange of the base material is carbon steel, so that the pipe flange with stainless steel and carbon steel flange of many excellent properties, and the production of simple, low cost. Therefore, the composite flange has a strong practical applicability.

Stainless steel flange is a kind of disc parts, in the pipeline engineering is the most common, stainless steel flanges are used in pairs. In the pipeline engineering, stainless steel flange is mainly used for pipe connection. In connection with the need to connect the pipe, all kinds of installation of a piece of flange, low pressure pipe can use stainless steel wire to connect the flange, 4 kg more than the use of stainless steel welding flange. Two stainless steel flange plate with the sealing between the points, and then use the bolt fastening. Different pressure stainless steel flanges have different thickness and different bolts. Pumps and valves, in connection with the pipe, the part of the equipment, the shape of the corresponding stainless steel flange, also known as the stainless steel flange connection. All in the vicinity of the use of the two plane bolt connection and the closure of the connecting parts, are generally referred to as the “flange”, such as ventilation pipe connection, this kind of parts can be called “flange type parts”. But this connection is only a part of the device, such as the connection of the flange and the pump, the pump is called “flange type parts”. Relatively small, such as valves, can be called “flange type parts”. In industrial pipe, the use of flange connection is very extensive. In the family, the stainless steel pipe diameter is small, and it is low pressure, can not see the flange connection. If in a boiler room or in the production site, there are all of the flange connection pipe and equipment.

Stamping by press and mold for sheet, strip, tube and profiles, such as external force, to produce plastic deformation or separation, to obtain the required shape and size of the workpiece (stamping) and stainless steel flange forming method. Stamping and forging belong to plastic processing (or pressure processing), called the forging press. Stamping of billet is mainly hot rolling and cold rolling steel plate and steel belt. Steel all over the world, there are 60 ~ 70% is plank, most of them after punching into finished products. Flange stamping process Used by stamping mold known as the stamping die, die for short. Die is the material (metal or non-metallic) processing into salt pieces of special tools required. Die is of vital importance in the flange stamping, did not conform to the requirements of punching die, stamping production batch is difficult; No advanced punching die, stamping process of advanced cannot achieve. Stamping process and die, stamping equipment and materials to form the three elements of stamping processing, can only draw stamping them together. Compared with the castings, forgings, pressing with a thin, uniform, the characteristics of light and strong. Stamping can make other methods are difficult to manufacture with stiffener, ups and downs, or flange pipe fittings, in order to improve its stiffness. Because use precision mould, workpiece precision can reach micron grade, and repeat precision is high, the specification is consistent, can punch a hole nest, convex sets, etc. Cold stamping generally no longer by machining, or only need a small amount of machining. Hot stamping precision and surface state is lower than the cold stamping parts, but it’s still better than the castings, forgings, cutting processing capacity.

High pressure flange is used very widely, but its quality requirements are very high, traditional high pressure flange: is the seal (oval gasket, octagon gasket, gasket, etc.) pad plastic deformation to achieve sealing effect and connected to the end of the tube, pipe and the pipe are mutually connected parts, there are holes on the flange, stud the two flange are closely linked. High pressure flange in use, has a good role and value, the premise is to be in accordance with the appropriate method to use, in the installation of the first to follow the guidance of the expert to install, in order to better guarantee the use value, better service life. Second, during the installation, the sealing pad is not allowed to replace the ordinary gasket, must choose the appropriate sealing pad to ensure the best sealing effect. 5 characteristics of high pressure flange 1, sealing principle belongs to plastic deformation 2, by bolt connection 3, bolt to bear the tension, temperature stress, and bear the bending moment, torque, etc. 4, bulky, heavy weight, installation position is very difficult. 5, the sealing performance is not stable, especially in the harsh (high temperature, high pressure, medium is highly toxic), prone to leakage, resulting in serious consequences.

Carbon steel flange, the body is made of carbon steel flange or end flanged fittings. Contains carbon steel material of flange, known as the carbon steel flanges. Common material for the casting of the carbon steel grades WCB, forgings A105, or Q235B, A3, 10 #, 20 # steel, 16 mn, 45 # steel, Q345B, etc. There are three kinds of carbon steel flange sealing surface type: planar sealing surface, suitable for the occasion of pressure is not high, medium non-toxic; Concave-convex sealing surface, suitable for pressure slightly higher occasion; Mortise sealing surface, suitable for flammable, explosive, toxic medium and high pressure situation. Ordinary rubber gasket is suitable for the occasion of temperature below 120 ℃; Asbestos rubber gasket suitable for vapor temperature below 450 ℃, the oil temperature is below 350 ℃, pressure is lower than 5 Mpa, for general corrosive medium, the most commonly used is acid-proof asbestos board. Carbon steel flange gasket is a kind of can produce plastic deformation, and has certain strength rings made of materials. Stiffness requirements for carbon steel flange, flange design, strength calculation, only the few stiffness calculation, but more and more of the production practice has proved that may also affect the flange sealing flange stiffness, less rigid flange buckling deformation will produce too much, make the gasket stress is not uniform, and cause leakage. Carbon steel flange connection is a detachable connection. According to the connection of parts can be pided into the vessel flange and pipe carbon steel flange. In high voltage equipment and pipelines, using 10 copper, aluminum, steel, stainless steel type lens or other shaped metal gasket. High pressure washers and sealing surface contact width is very narrow (line contact), the sealing surface with gasket processing carbon steel flange finish higher.

Corrosion resistance of stainless steel with the increase of carbon content and reduce, therefore, the majority of stainless steel carbon content are lower, the maximum not more than 1.2%, some steel Wc (carbon content) and even less than 0.03% (such as 00Cr12). The main alloying element in stainless steel is Cr (CR), only when the Cr content reaches a certain value, the steel has the corrosion resistance. Therefore, the stainless steel general Cr (CR) content of at least 10.5%. Stainless steel also contains Ti, Mn, Ni, N, Nb, Mo, Si, Cu and other elements. Stainless steel is often pided into: martensitic steel, ferritic steel, austenitic steel, AUSTENITIC FERRITIC (duplex) stainless steel and precipitation hardening stainless steel. In addition, can be pided into: chromium stainless steel, chromium nickel stainless steel and chromium manganese nitrogen stainless steel, etc.. Large stainless steel flange common marking method, the American Iron and Steel Institute is to use three digits to label a variety of standard grade of stainless steel. Among them: Large stainless steel flange with 200 and 300 series digital mark, 400 series of digital representation for ferrite and martensite stainless steel. For example, some of the more common austenitic stainless steels are marked with 310, 304, 316, and 201, The ferrite stainless steel is marked with 430 and 446, and the martensitic stainless steel is marked with 410, 420, and 440C, and the dual phase (austenite ferrite) is a double phase, High alloy stainless steel, the precipitation hardening stainless steel and iron is less than 50% is usually used patent name or trademark naming.

The corrosion of stainless steel flange, is usually characterized by the thinning of the wall of the stainless steel flange, a partial pits and pitting. Stainless steel flange corrosion detection method is the method of magnetic flux leakage and ultrasonic test. Stainless steel flange has its rubber sealing, vacuum seal main metal seal and magnetic fluid seal. Among them, the metal seal can satisfy the requirement of ultra high vacuum, but has the following disadvantages: metal sealing ring elasticity bad, takes a lot of seal. Repeated use is very poor; The roughness of the flange sealing surface and edge and with high accuracy; Seal and flange material thermal expansion coefficient difference is bigger, easy to cause local deformation caused by the leakage. The thermal expansion coefficient of the stainless steel pipe is similar to the copper pipe., is 1.5 times that of ordinarystainless steel pipe compared with stainless steel flange. pipe fitting has the characteristics of slow heat bilges cold shrink. Stainless steel is generally not local corrosion, chloride content of the resistance of 304 stainless steel can be up to 304 PPM, chloride content of the resistance of 316 stainless steel can be up to 316 PPM, this conclusion is based on exposure experiment data which has been confirmed by experience. The corrosion resistance of the stainless steel flanges in all kinds of stainless steel pipes are the best. Because stainless steel flanges can passivation with oxidant, in the density of surface forming a layer of tough rich chromium oxide film Cr2O3, effective to prevent further oxidation reaction to occur. Will not happen like carbon steel, stainless steel flange uniform corrosion, when used without protective coating.

Alloy flanges for special characteristics of pipelines and pipelines, and more for high temperature and high pressure. The common materials are 12Cr1MoV, 15CrMo, P91, P22, 10CrMo910 and so on. Alloy flange is the two large diameter pipe connection device, is usually two flange piece plus a number of fastening bolts. Alloy flange is made of steel flange. Low carbon steel flange with good low strength, the addition of appropriate amount of carbon will become hard, plastic reduce strength. Alloy flange connection may need to bear high tensile, compressive, anti torsion, shear strength, large flange is a better choice. The main design defect of the alloy flange is that it can not guarantee no leakage. This is less than its design: connection is dynamic, and such as thermal expansion and the ups and downs of the periodic load will cause the movement between the flange, affect flange, so that the flange of the integrity of damaged, resulting leakage. Any product can not have no defects, just try to control the lack of products to the least, so the company in the production of alloy flanges to improve the performance of the product, so that the largest role. The liquid shrinkage and shrinkage of the alloy in the production of alloy flanges are reduced, which is usually expressed by volume shrinkage, which is the basic reason of the shrinkage porosity and shrinkage defects of castings. Although the solid shrinkage of the alloy is also the volume change, it only causes the change of the external dimension of the casting. Solid shrinkage is the root cause of internal stress, deformation and crack of casting. Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Carbon Steel A106 GR. B grades in form of Flanges, Pipe Fittings, Buttweld Fittings,Threaded Fittings,Socket Weld Fittings,Fasteners, Pipes & Tubes, Sheets ,Plates, Round Bars, Olet Fittings and Bends etc. Carbon Steel ASTM GradesMaterialPipesFittingsFlanges Bolts & Nuts Carbon SteelA106 Gr AA234 Gr WPAA105 A193 Gr B7 A194 Gr 2HA106 Gr BA234 Gr WPBA105 A106 Gr CA234 Gr WPCA105 Carbon Steel Alloy High-TempA335 Gr P1A234 Gr WP1A182 Gr F1 A193 Gr B7 A194 Gr 2HA335 Gr P11A234 Gr WP11A182 Gr F11 A335 Gr P12A234 Gr WP12A182 Gr F12 A335 Gr P22A234 Gr WP22A182 Gr F22 A335 Gr P5A234 Gr WP5A182 Gr F5 A335 Gr P9A234 Gr WP9A182 Gr F9 Carbon Steel Alloy Low-TempA333 GR 6A420 Gr WPL6A350 Gr LF2 A320 Gr L7 A194 Gr 7A333 Gr 3A420 Gr WPL3A350 Gr LF3 Austenitic Stainless SteelA312 Gr TP304A403 Gr WP304A182 Gr F304 A193 Gr B8 A194 Gr 8A312 Gr TP316A403 Gr WP316A182 Gr F316 A312 Gr TP321A403 Gr WP321A182 Gr F321 A312 Gr TP347A403 Gr WP347A182 Gr F347 Carbon Steel Pipes Carbon Steel Pipes in these availble grades ASTM / ASME A 53 GR. A & B , ASTM A 106 GR. A , B & C . API 5L GR. B , API 5L X 42 with high quality. We also manufacture and export Carbon Steel Pipes & Tubes in other materials also like Nickel Alloys, Stainless Steel , Mild Steel, Alloy Steel etc. Specifications: ASTM / ASME A 53 GR. A & B , ASTM A 106 GR. A , B & C . API 5L GR. B , API 5L X 42,API 5L Grade Range : ½ NB TO 24 NB IN SCH 20 , 30, STD, 40 , 60 , 80 , XS , 100 , 120 , 140 , 160 & XXS as Per NACE MR 01 75 Type: SEAMLESS / ERW / WELDED/ FABRICATED / LSAW  Form: Round, Square, Rectangular, Hydraulic Etc. Length: Single Random, Double Random & Cut Length Carbon Steel Tubes Carbon Steel Tubes in these availble grades ASTM / SA 179 / A 210 GR.A / BS 3059 GR.360 & 440 with high quality. We also manufacture and export Carbon Steel Pipes & Tubes in other materials also like Nickel Alloys, Stainless Steel , Mild Steel, Alloy Steel etc. Specifications: ASTM / SA 179 / A 210 GR.A / BS 3059 GR.360 & 440 Range : 6.35 mm OD upto 254 mm OD in 0.6 TO 20 mm thickness. Type: SEAMLESS / ERW / WELDED Form:Round, Square, Rectangular, Coil, U Tube, Pan Cake Length: Single Random, Double Random & Required Length Carbon Steel Pipe Fittings Carbon Steel Pipe Fittings in these availble grades ASTM A403 / ASTM A312/A213/A249/A240/A276/A403/A164 with high quality Butt-weld Fittings, Socket Weld Fittings, Threaded Fittings. We also manufacture and export Stainless Steel Butt-weld fittings, Stainlesss Steel Socket Weld Fittings ,Stainlesss Steel Threaded Fittings in other materials also like Nickel Alloys,Mild Steel, Alloy Steel Fittings etc. Standards:  ASTMA 105/A694/ A350 LF3/A350 LF2. Grades: F42/46/52/56/60/65/70 Size: 1/2 NB – 48 NB Types: Butt-weld Fitings , Forged Fittings(Threaded & Socket Weld) Forms: Elbow 45 deg & 90 degree, Tee , Union, Full & Half coupling, Cross, Cap, Swage Nipple, Plug, Bush Thickness: SCH10S, XXS

Carbon Steel Grade B A106 Seamless Pipes: Carbon Steel Grade B A106 Seamless Pipe known as ASME SA106 pipe. Carbon Steel Grade B A106 Seamless Pipes commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and shipsetc. This specification covers seamless carbon steel pipe for high-temperature service Sizes (Seamless): 1/2″ NB – 60″ NB Sizes (ERW): 1/2″ NB – 24″ NB Sizes (SAW): 16″ NB – 100″ NB Wall Thickness available: Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thk. Material Grades: High Temperature Seamless PipesASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. BHeat Exchanger Seamless TubesASTM A179Low Temperature Seamless PipesASTM A333 Gr. 3/6Low Temperature Seamless TubesASTM A334 Gr. 6High Yield Seamless PipesAPI 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2High Yield Seamless PipesISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485Atmospheric & Low Temp EFW PipesASTM A671 Gr. CC60/CC65/CC70High Pressure & Moderate Temp EFW PipesASTM A672 Gr. B60/B65/B70/C55/C60/C65/C70High Yield ERW/SAW PipesAPI 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2High Yield ERW/SAW PipesISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485 Chemical Composition ASTM A106 Carbon Steel Pipes Grades Grade AGrade BGrade CTotal of Cr, Cu, Mo, Ni, and V shall not exceed 1%Carbon max. %0.250.300.35Manganese %0.27 to 0.930.29 to 1.060.29 to 1.06Phosphorous, max. %0.0350.0350.035Sulfur, max. %0.0350.0350.035Silicon, min.%0.100.100.10Chrome, max. %0.400.400.40Copper, max. %0.400.400.40Molybdenum, max. %0.150.150.15Nickel, max. %0.400.400.40Vanadium, min.%0.080.080.08 Outside Diameter at any point shall not vary from standard specified more than:NPS [DN Designator]OverUnderin.mmin.mm1/8 to 1-1/2 [6 to 40], incl1/64 (0.015)0.41/64 (0.015)0.4Over 1-1/2 to 4 [40 to 100], incl1/32 (0.031)0.81/32 (0.031)0.8Over 4 to 8 [100 to 200], incl1/16 (0.062)1.61/32 (0.031)0.8Over 8 to 18 [200 to 450], incl3/32 (0.093)2.41/32 (0.031)0.8Over 18 to 26 [450 to 650], incl1/8 (0.125)3.21/32 (0.031)0.8Over 26 to 34 [650 to 859], incl5/32 (0.156)4.01/32 (0.031)0.8Over 34 to 48 [850 to 1200], incl3/16 (0.187)4.81/32 (0.031)0.8 Tensile Requirements Seamless Grade AGrade BGrade CTensile Strength, min., psi48,00060,00070,000Yield Strength, min., psi30,00035,00040,000 Number of Tests Required NPSOn One Length from Each Lot ofTensile5 and smaller400 or less6 and larger200 or lessBending2 and smaller400 or lessFlattening2 through 5400 or less6 and over200 or less Carbon Steel ASTM A53 Seamless Pipes: Carbon Steel ASTM A53 pipe is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, subject to certain qualifications. This specification covers seamless carbon steel pipe for high-temperature services Sizes (Seamless): 1/2″ NB – 60″ NB Sizes (ERW): 1/2″ NB – 24″ NB Sizes (SAW): 16″ NB – 100″ NB Wall Thickness available: Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thickness. Carbon Steel A33 Gr. 3/6 Seamless Pipes Chemical Requirements Composition, % ElementGrade 1Grade 3Grade 6Carbon, max0.300.190.30Manganese0.40 – 1.060.31 – 0.640.29 – 1.06Phosphorous, max0.0250.0250.025Sulfur, max0.0250.0250.025Silicon0.18 -0.370.10 minNickel3.18 – 3.82