The difference between welded pipe and drawn pipe
What is the difference between Manufacturing Process
Welded Pipe: Made by welding a sheet or coil into a tube
Drawn Pipe: Produced by drawing a solid rod or billet through a die to reduce its diameter
What's different about Seam
Welded Pipe: Contains a longitudinal seam due to welding
Drawn Pipe: Seamless; no seams, as material is drawn through the die in one continuous piece
How is Surface Finish different?
Welded Pipe: May have visible weld lines and a rougher surface
Drawn Pipe: Smooth, polished surface, often with improved dimensional accuracy
What is the difference between Wall Thickness
Welded Pipe: Can have variations in wall thickness along the length
Drawn Pipe: Generally uniform wall thickness, as the process controls thickness more precisely
What is the difference between Strength
Welded Pipe: Generally lower tensile strength than drawn pipes
Drawn Pipe: Higher tensile strength due to the cold working process during drawing
What is the difference between Cost
Welded Pipe: Typically more cost-effective
Drawn Pipe: May be more expensive due to the additional manufacturing steps and improved surface finish
What is the difference between Size Range
Welded Pipe: Available in a wide range of sizes and diameters
Drawn Pipe: Limited by the size of the original billet or rod; larger sizes may be challenging to produce
What is the difference between Applications
Welded Pipe: Commonly used in structural and industrial applications
Drawn Pipe: Preferred for applications requiring a smooth surface, such as hydraulic tubing or precision components
What is the difference between Quality Control
Welded Pipe: Weld seams may undergo additional testing and inspection
Drawn Pipe: Generally has higher quality control standards due to the precision of the drawing process
What is the difference between Usage
Welded Pipe: Suitable for a wide range of applications, including those where appearance is less critical
Drawn Pipe: Preferred in applications where a seamless, smooth finish is crucial, such as in the pharmaceutical or aerospace industries