Main specifications and materials of pipe elbow

  An elbow is a pipe fitting installed between two lengths of pipe or tubing to allow a change of direction, usually a 90° or 45° angle, though 22.5° elbows are also made. The ends may be machined for butt welding, threaded (usually female), or socketed, etc. When the two ends differ in size, the fitting is called a reducing elbow or reducer elbow.

  Key Specifications/Special Features and Materials

  the material is selected accoding to the application use such as high temperature use,sanitary fitting,regular industrial use etc.

  Carbon steel: ASTM A234 WPB, WPC, ASTM A420 WPL1, WPL3, WPL6, WPHY-42/46/52/56/60/65/70

  Stainless steel: ASTM A403 WP304/304L, WP316/316/L, WP321, WP347 and WPS31254

  Alloy steel: ASTM A234 WP1/WP12/WP11/WP22/WP5/WP7/WP9/WP91

  Abrasion resistant material:Ceramic lined, Ceramic tile lined , Bi-metal clad pipe,

  Manufacturing standards: ANSI, ISO, JIS and DIN.

  The ends of pipe elbows may be machined for butt welding , threaded , or socketed , so the elbows are consist of butt weld,thread elbow, socket elbow and other series.

  http://www.xysteelpipe.com/info/Main-specifications-and-materials-of-pipe-elbow-1246-1.htm

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