Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
(OP)
Hi All,
I have a drawing for three parts having OD ranging from .750” to 1.125”. For the material, a note says “AISI 1020, Drawn-Over-Mandrel Tube.” Does this mean SEAMLESS TUBE? My guess is yes, but still confused. Could any one please help me?
Thank you.
I have a drawing for three parts having OD ranging from .750” to 1.125”. For the material, a note says “AISI 1020, Drawn-Over-Mandrel Tube.” Does this mean SEAMLESS TUBE? My guess is yes, but still confused. Could any one please help me?
Thank you.





RE: Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
RE: Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
RE: Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
RE: Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
http://www.welding-advisers.com/
RE: Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
Costwise it is more expensive then ERW, and less expensive than seamless tubing. The disadvantage is the limited wall thickness available 5/8" maximum. DOM tubing can be other than round.
It can be oval and other special shapes depending on the volume required. The last company I worked for used 14 1/8" x 7/16" wall DOM and several other large diameter thin wall tubes.
www.copperweld.com/pdfs/DOMBro.pdf
www.steeltubeinstitute.org/domprocesses.htm
RE: Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?
For most applications the welded vs seamless discussion is meaningless. There is no advantage of one over the other. When it comes to tolerances and dimensional control it is the finishing methods that are critical.
If it is the same composition, same mechanical properties, recieved the same NDT, then use whatever gives you the dimensions that you need.
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Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: Does "Drawn-Over-Mandrel Tube" mean SEAMLESS TUBE?