The seamless tube we used was hot pierced to make a tube 1.900 x 0.375" (O.D. x Wall), annealed, cold worked (over mandrel) to 1.500 x 0.313, annealed, & cold worked (over mandrel) to finish size of 1.220 x 0.256". So it was cold drawn a couple different times but the surface fissures still...
Hello everyone, this is my first post on engineering tips.com. What I have is mult length tubing (~ 20 ft long). The tubing has an O.D. of 1.220" (31 mm) and an I.D. of 0.709" (18 mm). I am using this product in trying to develop a tubular part that will be used in a torsional fatigue...