stainless pipe flange-manufacture,factory,supplier from China

Implementation principleThreaded flange is a kind of non-welded flange, which processes the inner hole of the flange into pipe threads, and is matched with the threaded pipe to realize the connection. Compared with the flat welding flange or the butt welding flange, the threaded flange has the characteristics of convenient installation and maintenance, and can be used on some pipelines where welding is not allowed. Alloy steel flanges have sufficient strength, but are not easy to weld, or the welding performance is not good, and threaded flanges can also be selected.

Loose flange: This kind of flange is often used in the case where the medium temperature and pressure are not high and the medium nozzle is highly corrosive. The loose flange is generally used in combination with the flanging short joint, that is, the flange ring is loosely sleeved outside the flanging short joint, the pipe is butt welded with the flanging short joint, and the flange sealing surface is processed on the flanging short joint.In addition, there are flat welding ring and butt welding ring plate loose flange.

Types of Socket Weld FlangesSocket Weld Raised Face FlangeRaised Faced Socket weld Flanges4 Bolt Socket Weld flange300# Socket Weld FlangeANSI B16.5 Socket weld FlangesSocket weld Flange DimensionsASME B16.5 SWRF FlangesANSI B16.5 Class 150 Socket weld FlangesStainless Steel Socket weld Flanges Suppliers1 inch Socket weld FlangeSocket weld Ring Type Joint FlangesASME B16.47 Series A and B SWRF Flanges2 inch Socket weld Flange3 inch Socket weld FlangeANSI B16.5 class 150 SWRF Flange StockholderANSI 150 Socket weld Flange4 inch Socket weld FlangeHigh Quality SWRF FlangesFlat Face SWRF Flange6 in

Structural features:Threaded flanges manufactured in accordance with ASME B16.5 are similar to sliding flanges, but the holes shall have tapered pipe threads in accordance with ASME b1.20.1. The thread shall be concentric with the axis of the flange opening, and the alignment deviation (perpendicular to the flange face) shall not exceed 5mm per meter. Threaded flanges are NPs 1 / 2 to NPs 24 in size and pressure classes are 150, 300, 400, 600 and 900. The sizes of class 1500 and 2500 are NPs 1 / 2 to NPs 2 - 1 / 2.Class 150 threaded flange has no counterbore.

Stainless Steel Pipes1- Seamless Stainless Steel Pipe :Xinyuan supplies wide range of seamless stainless steel pipe for different industries such as petrochemical, oil & gas industries and other industrial applications.Stainless steel is often referred to as “corrosion-resistant steel” – it does not stain, corrode or rust as easily as normal carbon steel. It would however be misleading to say it is corrosion-proof.

Features of Flat Welding FlangesWhen welding flat welding flanges, only one side welding is required, and there is no need to weld the inner port of the pipe and flange connection. The welding installation of butt welding flanges requires double-sided welding of the flanges. Therefore, flat welding flanges are generally used for low and medium pressure pipelines, and butt welding flanges are used for the connection of medium and high pressure pipelines. Butt welding flanges are generally at least PN2.5MPa. Butt welding is used to reduce stress concentration.

Both are good steels for high temperature and corrosion resistance, but the 904L stainless steel pipe is much better. See the following for details:310S stainless steel pipe main composition: 25Cr-20Ni-0.08CCountry code: 0Cr25Ni20 or 0Cr25Ni20Si2310S stainless steel pipe designed for high temperature environment, oxidation resistance is better than 309S steel, used as heat resistant steel and boiler.

1. Comparison of copper pipe and stainless steel pipeNow from the material's physical performance, health performance, corrosion resistance, economic value and other aspects of comparison.1. Comparison of physical propertiesComparison of tensile strength:Take the commonly used 304 material of thin-wall stainless steel pipe as an example, its tensile strength is 530 ~ 750Mpa, is galvanized pipe 2 times, copper pipe 3 times.

 In recent years, the stainless steel welded pipe market has been a "big hot". Because of its good heat transfer performance, it is widely used as a stainless steel heat exchange tube. Looking forward to the development trend of 316L stainless steel welded pipe. 　　First, the carbon content of 316L stainless steel welded pipe is 0.03, which can be used in applications where annealing after welding and high corrosive requirements are not possible. 316L stainless steel welded pipe has corrosion resistance due to the addition of molybdenum.

Stainless Steel 446 Pipe SpecificationStandardASTM A312 / A358, ASME SA312 / A358SpecificationDIN, ASTM, BS and all International StandardsSS Pipe Size1/2" to 16"NBERW Pipe Size1/2" to 24"NBEFW Pipe Size6"NB to 100"NBTypeSeamless, ERW, Welded, Fabricated, LSAW.FormRound, Square, Rectangular, Hydraulic etc.LengthSingle Random, Double Random and Cut Lenght.EndPlain End, Beveled End, Threaded etc.