Company Details

  • Unisite Group Ltd.

  •  [Zhejiang,China]
  • Business Type:Manufacturer , Trade Company
  • Main Mark: Middle East , West Europe , Americas , Asia , East Europe , Europe , North Europe , Oceania , Worldwide
  • Exporter:91% - 100%
  • Certs:ISO9001
  • Description:Welded Bend Without Flanges,Welded Bend Pipe,Seamless Welded Bend,Welded Bend With Flanges
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Unisite Group Ltd.

Welded Bend Without Flanges,Welded Bend Pipe,Seamless Welded Bend,Welded Bend With Flanges

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Welded Bend

Product categories of Welded Bend, we are specialized manufacturers from China, Welded Bend Without Flanges, Welded Bend Pipe suppliers/factory, wholesale high-quality products of Seamless Welded Bend R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
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Carbon steel weld pipe bend
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-070

Seamless elbow: elbow is a kind of pipe fitting used for turning of pipe. In the pipeline system used in all the pipe fittings, the largest proportion, about 80%. In general, different forming processes are selected for different materials or wall...

Wholesale Various High Quality of Welded Bend Without Flanges
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Equal welding hot bend
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-069

The elbow made by cold extrusion technology of internal and external mold is beautiful, uniform wall thickness and small size, so it is used for stainless steel elbow, especially for stainless steel elbow. The precision of internal and external die...

China Welded Bend Pipe Brands
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Steel metal bending pipe fittings
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-075

Compared with the hot pushing process, stamping the appearance quality is inferior to the former; stamping elbow in the forming of arc in tension and other parts of excess metal is not the compensation, so outside the arc wall thickness reduction...

New design of Seamless Welded Bend
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Butt welded fittings pipes
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-076

As the appearance of the welding elbow, then we say that the appearance of the welding elbow bar. Welding elbow appearance are fixed, of course, the general welding elbow appearance is according to different steel tube and to choose the different...

Cheap Welded Bend With Flanges from China
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Welded steel hot bend pipe
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-071

Production process Welding elbow production process, if the long radius of the elbow, you must first select specifications, put forward the tube material. Spread ratio, through theoretical calculation, the general expansion rate of 35% - 33%, and...

High Quality Welded Bend Without Flanges China Manufacturer
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Hot equal welded steel bends
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-073

Products have special requirements are still in use. The stamping of the elbow is formed by using the tube blank equal to the outside diameter of the elbow.Before stamping, the tube blank is placed on the lower die, and the inner core and the end...

China Welded Bend Pipe Supplier
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Welding steel bend fittings
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-074

Stamping elbow is the earliest application in mass production, the forming process of seamless elbow, at present, in the production of the elbow of the commonly used specifications has been hot pushingpipe method or other forming techniques of...

China Supplier of Seamless Welded Bend
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Hot custom steel welded bends
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-072

Stamping elbow points cold stamping and hot stamping two kinds, usually based on the properties of materials and equipment selection of cold stamping or hot stamping.Cold extrusion bend forming process is the use of special elbow forming machine,...

China Factory of Welded Bend With Flanges
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Welding bend pipes fitting
  • Brand: UniSite
  • Packaging: Wooden Cases, Wooden Pallet or Neutral Boxes package and container transportation
  • Min. Order: 10 Piece/Pieces
  • Certificate: CCS/BV/ISO
  • Model No.: USA-068

Welding elbow is shrimp "turn", it can be in the pipe or plate cutting after welding and become, and its specifications can be large. The number of nodes and the bending radius are determined by the producer. Welding bending is not very smooth, both...

Welded Bend Without Flanges Made in China
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China Welded Bend Suppliers

Welding elbow is shrimp "turn", it can be in the pipe or plate cutting after welding and become, and its specifications can be large. The number of nodes and the bending radius are determined by the producer. Welding bending is not very smooth, both of the bending radius is not large, generally about 1 times the diameter of the pipe.

Photo of Welded Bend:

welded bend


Classification of welding elbow, according to its radius of curvature,

45 degree elbow

Can be divided into long radius elbow and short radius elbow. Long radius elbow refers to its radius of curvature is equal to 1.5 times the diameter of the tube, that is, R=1.5D. short radius elbow refers to its radius of curvature is equal to the outer diameter of the pipe, that is, R=D. D in the formula is the elbow diameter, and R is the radius of curvature. The most commonly used for 1.5D elbow, if not specified in the contract is 1D or 1.5D, then it is to optimize the use of 1.5D. GB/T12459-2005, GB/13401-2005, GB/T10752-1995., is the most commonly used executive standard in China.

Pressure grade classification

If according to the pressure level, there are about seventeen, and the United States pipe standards are the same, there are: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS,; Sch

180 degree welding elbow

80, Sch100, Sch120, Sch140, Sch160, XXS, which is the most commonly used STD and XS two. According to the angle of the elbow, 45 degree elbow, 90 degree elbow and 180. Species as a result of the elbow is a lot, when ordering, order is often taken as described in the following methods: such as "LR STD 90 8", said long radius, pressure rating for STD, 90o 8 "elbow; and as," 45 DEG SR XS 4 "said short radius, pressure rating for the XS and 45 degrees of 4" elbow. The above is about the classification of the elbow. Three links, there are two kinds of general. The diameter of the three equal diameter is equal to the diameter of three links, and both ends are the same diameter, but the diameter of the junction is different from that of the other two diameters. The method is as follows: for the equal diameter three links, such as the "T3" three general, the outer diameter is 3 inches and three inch diameter. For different diameter three links, such as the "T4 x 3.5 x three" means that the same diameter of four inch diameter of 3.5 inches of 4 inch diameter. The pressure level is the same as that of the elbow, and the range is the same.

This is the big head, method. Head size of said method is big diameter multiplied by the head diameter, for example "8 x 6" said big head with a diameter of 8 inches and head diameter is 6 inch head size.



Material division of welding elbow

Carbon steel: A234 WPB ASTM/ASME, WPC

Alloy: A234 WP 1-WP 12-WP ASTM/ASME 11-WP 22-WP 5-WP 91-WP911 15Mo3, 15CrMoV, 35CrMoV

Stainless steel: A403 WP 304-304L-304H-304LN-304N ASTM/ASME

A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME

A403 WP 321-321H ASTM/ASME A403 WP 347-347H ASTM/ASME

Low temperature steel: A402 WPL3-WPL ASTM/ASME 6

High performance steel: A860 WPHY 42-46-52-60-65-70 ASTM/ASME



structure

Welding elbow appearance

As the appearance of the welding elbow, then we say that the appearance of the welding elbow bar. Welding elbow appearance are fixed, of course, the general welding elbow appearance is according to different steel tube and to choose the different knowledge of welding elbow, so, in order to ensure the welding elbow appearance, usually Steel Pipe in the future, if not been yard rain washing off, then welding elbow after high temperature push general weld appearance of the elbow is appear out of the blue, of course, if the rain washed, we in high temperature after heating, heating welding elbow surface color are red. But overall, we guarantee tube is washed by the rain is very difficult, because is yard in summer is rain fog water washed, then push the system out of the welded elbow surface is red, too.



Technical requirement

Geometric dimensions include outside diameter, inside diameter and wall thickness. Also requires control

Radius of curvature. For example, the radius length is 1.5D, and the radius of curvature must be within the range of tolerances required. Due to these fittings, most used for welding, in order to improve the welding quality, end vehicles into the groove, leave a certain angle, side band, this requirement is quite strict, edge thick, at an angle of number and range of deviation provisions, geometric size than pipe much many. The surface quality and mechanical properties are basically the same as that of the tube. In order to facilitate welding steel, and the connecting pipe are the same. Fourth, is all the pipe fittings should be through the surface treatment, the inner and outer surface of the oxide scale through shot blasting, and then coated with anticorrosive paint. This is not only for export needs, in addition, in the country is to facilitate the transport to prevent rust oxidation, to do this work. Fifth is the packaging requirements, for small pipes, such as export, you need to do wooden, about 1 cubic meter, this provision in the case the number of elbows about not more than a ton, the standard allows the suit, large sets of small, but the total weight usually do not more than 1 ton. For large to a single package, like 24 "must be a single package. The other is labeled packaging, labeling is to indicate size, number, batch number, manufacturer trademark. In the pipe to be stamped on stamp, and attached to the packing list and the quality book file.







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