SIngle & Double Wall Steel Tubing

Bundy Tubes

Bundy Tube, originally called the double wall low carbon steel tube, is now used to refer to single wall low carbon steel tube in many areas, because many of the application and post-processing of the tubes are very similar. This name sometimes confuses many readers.

There are very obvious characteristics of these two types of tubes, and below are some facts of each of them.

We offer both double wall Bundy tubes, and single wall welded tubes, with different surface coating for corrosion protection and long-lasting reliability for your application.

Single and Double Wall Bundy Tubes
Type Double Wall (TDW) Single Wall (TSW)
Welding Technique Copper brazing High frequency ERW
Resizing Method Cold drawn Cold drawn
Seam 720 Degree seamless Straight line seamed
Dimensional Accuracy High High
Strength Mostly made hard Can be soft or hard
Inside Clearliness Good Poor
Vibration Resistance Strong Poor
Safety against Pressure High Low
Application Automobile brake lines, fuel lines, transmission cooler lines, power steering lines; certain hydraulic pipes, etc; AC, refrigeration, heat exchanagers, automobile fuel lines; compressors, etc;
Original Surface Copper None (steel)
Surface Coating Copper

Zinc

GALFAN

PVF

Nylon

Epoxy

Nickel

Zinc

GALFAN

PVF

Nylon

Epoxy

Nickel

Free Samples!

Worldwide Shipping

Contact Us Right Now!