ZONAL
Tubes for amateurs: road and mtb competition
frames.
The alloy selected by Columbus
-
- Very good TIG weldability
- Mechanical characteristics (T6 state):
Rm = 420 N/mm2, Rs 380 N/mm2 Ap5> 12%
Recommended weld material for TIG welding: 5836/5780/5183/5556
The characteristics of the Zonal tubes
- Elevated strength/weight ratio thanks
to the use of lightened tubes.
Very good TIG weldability
- It is necessary to perform an
artificial ageing treatment after the welding of the frame in order to
improve the mechanical performan-ces (6 hours at a temperature of 90°C
followed by 4 hours at 150°C).
- Integrated Head Tube option
Reasons to choose Zonal
- Athlete:
Zonal allows for the production of frames with a reasonable weight and
adequate characteristics of strength thanks to the use of the
Megatubes.
- Framebuilder:
the easy workability of the tubes allows for the production of
reliable and light frames. It is recommended to perform an artificial
ageing treatment.
The weight refers to sized and
mitered tube for a 54cm c-c road frame or a 18" (45.5cm) MTB
frame
Max shortage
mm
Cutting area |
a |
Tube Stocked |
r |
Tube available to
special order only |
|