Drawn-Over Mandrel Welded Mechanical Tubing is produced in carbon grades 1010 and 1020 by Plymouth Tube Co. to ASTM A 513 Type 5. The current DOM size range is .250” OD thru 1.750” OD by .028” wall thru .134” wall (additional sizes may be produced upon inquiry). Testing capabilities include non-destructive testing (eddy-current) and destructive (flattening and flaring) methods that exceed the stated requirements of ASTM A 513. Special testing is available upon request.

• Tighter dimensional tolerances: Cold drawing through dies over mandrels can  yield consistently close dimensional tolerances.
• Superior strength and formability: The physical properties of a cold drawn tube are much more flexible than those produced by other means.
• Higher Quality OD and ID surface finish: Cold drawing also produces a superior OD and or ID surface, maintaining a smooth finished unmatched by other methods.
• A wide variety of custom sizes: With cold drawing, mechanical tubing can be produced in an almost limitless range of OD and wall combinations.