This is the fourth article of Part 1 of our Technical Series on Drill Rod Safety. Click here for an outline of the entire Technical Series on Drill Rod Safety.
View demonstration of the cold drawing procedure for manufacturing steel tubing in this video from Saltzgitter Mannesman Precision Tubes.
Other articles in the drill rods manufacturing series
What forces and stresses are exerted on drill rods? Here's an explanation of the mechanical concepts.
The tubular steel used to manufacture drill rods must meet strict manufacturing standards and have specific mechanical properties.
How are drill rods and drillpipe manufactured, and which grades of steel are used?
A demonstration of the cold drawing procedure for manufacturing steel tubing.