The 5D bend in pipe bending is an accomplishment in pipe manufacturing, and not all pipe companies can provide it.
ASTM A420/A420M-07 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service.
There are various Pipe Fittings Manufacturing Process that used to manufactured Elbow, Tee, Reducers and other pipe fittings.
A buttweld fitting is a weldable pipe fitting that allows for change of direction of flow, to branch off, reduce pipe size or attach auxiliary equipment.
Butt weld fittings get their name from the method for which they attached to a piping system.
Steel pipe fabrication is the process of cutting, bending, and shaping steel alloy to create a product.
Bends typically have a minimum bending radius of 1.5 times pipe radius (R). If this bending radius is less than 1.5R, it is called Elbow.
We bend and form pipe with round, rectangular, square, plus oval cross sections used in medical, automotive, plus electronics industries.