• Characteristics, Technical parameters and forging methods of stainless steel flat welding flanges

    In the early stage of forging deformation of stainless steel flat welded flanges, because the porous preform is easy to deform, the deformation force is small, and the density increases rapidly. In the later stage of forging forming, due to the closure of most of the pores, the deformation resistance increases, and the deformation force required to eliminate the residual pores increases rapidly. The deformation resistance is closely related to the deformation temperature. A higher deformation temperature is conducive to compaction and reduces the deformation resistance. The higher deformation rate is also conducive to the compactness of stainless steel flat welded flanges. The forging process of stainless steel flat welded flanges has stricter equipment requirements than traditional die forging, and the displacement characteristics of the punch must match the deformation and compact characteristics of the preform. The contact time between the blank and the mold should be as short as…

    Technical Information March 4, 2021
  • Causes and solutions for lateral cracking of 304 stainless steel product sidewalls

    304 stainless steel products often have various cracking phenomena during the deep drawing process. Among them, lateral or point cracks on the sidewall are common processing failure forms of 304 stainless steel products with relatively large deep drawing. Especially in recent years, the cost-reduction work of stainless steel products processing procedures has continued to advance. The number of drawing passes has been reduced from 5 times to 3 times commonly used at present, and the number of intermediate annealing has been changed to one annealing or no annealing after stamping. The formability of the material puts forward higher requirements. The lateral or point-like cracking defects on the sidewall of stainless steel products may be caused by material inclusions, delta ferrite and other material intergranular defects, or may be caused by factors such as the drawing process and drawing oil during the processing of stainless steel products. The lateral or point…

    Technical Information February 26, 2021
  • Stainless Steel Flanges Specification

    In pipeline engineering, stainless steel flanges are mainly used for pipeline connections. Including: stainless steel plate flat welding flange, stainless steel neck flat welding flange, stainless steel neck butt welding flange, stainless steel socket welding flange, stainless steel threaded flange, stainless steel flange cover, stainless steel neck butt welding ring loose sleeve Flange, stainless steel flat welding ring loose flange, stainless steel ring groove face flange and flange cover, stainless steel large diameter flat flange, stainless steel large diameter high neck flange, stainless steel blind plate, stainless steel butt welding ring loose sleeve method Flange, stainless steel rotating flange, stainless steel anchor flange, stainless steel surfacing/overlay welding flange Pressure rating: 0.6Mpa ~32Mpa, 150Lbs ~2500Lbs, PN0.25-PN42.0Mpa Material: 20#, 304, 304L, 321, 316, 316L, 310S and other materials Common standards for flanges: ISO flanges KF fittings and flanges and CF fittings and CF flanges. China Standard: GB9113-2000~GB9124-2000 American Standard: ASTM A182 Flanges, forged, ASME…

    Technical Information December 23, 2020
  • The difference between stainless steel flange and carbon steel flange

    The main function of the flange is to facilitate the disassembly and inspection of the pipeline, to facilitate the replacement of a certain section of the pipeline, to connect the pipeline and maintain the sealing performance of the pipeline; to facilitate the closure of a certain pipeline. The main features of carbon steel flanges: It has compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and the contact surface are often closed, not easy to be eroded by the medium, and easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas. It is suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. It is widely used in various industries. The carbon steel flange is easy to operate and opens and closes quickly. It only needs to rotate 90° from fully open…

    Technical Information December 7, 2020
  • How to Install Stainless Steel Flanges Correctly

    Stainless steel flanges will not produce corrosion, pitting, rust, and are not easily worn. Stainless steel is one of the highest-strength metal materials for construction. Because stainless steel has good corrosion resistance, it can make structural components permanently maintain the integrity of engineering design. There are more and more types of stainless steel flanges in the production process, and the installation methods are different for different types of flanges. Next, I will introduce the correct installation sequence of stainless steel flanges. 1. The contaminated stainless steel pipe or stainless steel pipe fittings should be cleaned up before the stainless steel flange connection; 2. The pipes to which the stainless steel flange is connected are respectively fitted with a flange with a grooved ring; 3. Perform 90° flanging process on the two pipe ports. After flanging, the port surface should be polished vertically and flat without burrs, unevenness, or deformation. The…

    Technical Information August 11, 2020
  • KF fittings KF flanges

    Guanyu Tube offers a complete line of vacuum KF fittings and KF flanges. The tube portions are fabricated from 304 or 316L or other high quality stainless steels. Guanyu’s elbows, and all tees and crosses are made with the pull port technique. This allows smooth, crevice-free butt welds to provide the maximum in cleanliness for UHV applications. Bakeout range is up to 200°C. Standard finish is bead blasted. KF Stainless Steel Flanges KF Stainless Steel Nipples KF Stainless Steel Elbows KF Stainless Steel Tees KF Stainless Steel Crosses KF Stainless Steel Clamps and Seals FlangeSize Material TubeOD Dimension, in. (mm) Dimension, in. (mm) Dimension, in. (mm) Dimension, in. (mm) – – – A B C D NW10 304/316L 1/2″ 1.18″ (30.0) 0.48″ (12.2) 0.12″ (3.0) 0.10″ (2.5) NW16 304/316L 3/4″ 1.18″ (30.0) 0.68″ (17.2) 0.12″ (3.0) 0.10″ (2.5) NW25 304/316L 1″ 1.57″ (40.0) 1.03″ (26.2) 0.12″ (3.0) 0.10″ (2.5) NW40 304/316L…

    Fitting May 31, 2020
  • CF FLANGES CF FITTINGS

    Guanyu Tube offers a complete line of CF fittings and CF flanges. One different vacuum fittings type from KF fittings and KF flanges and ISO fittings and ISO flanges. CF fittings are ideal for ultra-high vacuum environments and are ready to use as received. CF Components, CF Fittings and CF flanges are available in a variety of configurations. CF Stainless Steel Flanges CF Stainless Steel Nipples CF Stainless Steel Elbows CF Stainless Steel Tees CF Stainless Steel Crosses Features: 1. CF flanges are designed in accordance with ISO 3669 and can be changed upon request. 2. Flange sizes are from CF 16 to CF250. 3. CF flanges are available in both rotatable and non-rotatable models with through holes or tapped holes. 4. Standard materials are 304 and 316L stainless steel. 5. CF products are supplied with a machining finish. Other finishes are also available. 6. Easy assembly or disassembly 7. The system can…

    Fitting May 31, 2020
  • ISO fittings ISO flanges

    Guanyu Tube offers a complete line of ISO vacuum fittings and ISO flanges. One different vacuum fittings type from KF fittings and flanges and CF fittings and CF flanges. ISO fittings are ideal for high vacuum environments. ISO Components, ISO Fittings and ISO Adapters are available in a variety of configurations. ISO Stainless Steel Flanges ISO Stainless Steel Nipples ISO Stainless Steel Elbows ISO Stainless Steel Tees ISO Stainless Steel Crosses ISO Stainless Steel Clamps and Seals ISO vacuum fittings and ISO flanges Features: 1. Flanges are designed according to ISO specification and can be changed upon request. 2. Flange sizes are from ISO 63 to ISO 160. Special sizes upon request. 3. Vacuum Range: ≥10-8 Torr 4. Standard materials are 304 and 316L stainless steel. 5. Tube sizes are from 2-1/2″ to 6″ 6. The ISO flange system consists of two sexless flanges, an O-ring supported by a center ring and a range…

    Fitting May 31, 2020