 |
Billets
CBA billets are produced through DC (Direct Chill) casting system using Wagstaff Air Slip Hot Top technology. They have a better surface
finish and more uniform and fine internal finish than
the cast billets from conventional technology. As a
result, it is possible to apply less extrusion pressure
and greater speed of extrusion, optimized metallic return,
as well as a longer life to the templates.
The alloys employed are usually
of the 6XXX series, but we can also empty materials
in other alloys.
| Dimensional Characteristics and Weight of the CBA Billets |
| Diameter¹ |
Linear Weight
(Kg/m) |
Maximum Length²
(mm) |
| (mm) |
Nominal
(inches) |
| 152.4 |
6 |
49.5 |
6,000 |
| 177.8 |
7 |
67.6 |
| 203.2 |
8 |
87.5 |
| 254.0 |
10 |
136.8 |
¹ Tolerance +0/-1 mm
² With base and head sawed, tolerance +0/-5 mm. |
The billets are identified in their base with the Nr. of run and the Nr. of oven. The system of identification of the billets is defined by means of the paint in its top extremity.
|
|
|
