The precision seamless tubes custom-manufactured at Fine Tubes begin their journey as seamless tube extrusions, in a range of different sizes.
This material is reduced in size several times until it gradually reaches the exact specifications our customers require. Each time we perform a reduction process, the tube needs to be cut, cleaned and heat treated before the next one can commence.
Seamless Processes
The main processes we use when manufacturing seamless tubes are tube reduction (or pilgering) and cold drawing. Other important processes in between or after the drawing process are:
- Degreasing / cleaning
- Straightening
- NDT testing
- Packaging
- Annealing
- Cutting to length / deburring
- Printing
- Shipment
Optional processes include:
- Polishing
- Electropolishing
Advantages
Seamless tubes offer the assurance of a completely uniform structure and are manufactured from an extensive range of materials derived from extrusions or bars. They are made to a broad range of sizes and specifications, with thick or thin walls, and can be made in small or large quantities.