Cold drawing
Welded and hot-finished seamless tubing and pipe can be cold-drawn by pulling it over a mandrel.
Cold drawing results in
- Closer tolerances
- Greater strength and hardness
- Better surface finish
Cold drawing enables production of seamless tubing and pipe with smaller O.D. and thinner walls than hot-finished tubing
Cold drawn tubing and pipe are often annealed to eliminate the strengthening effects of the cold working and improve ductility.
