Standard
BS EN 12020-2:2022
Aluminium and aluminium alloys. Extruded precision profiles in alloys EN AW-6060 and EN AW-6063 - Tolerances on dimensions and form
Current
•Published:
1 Scope
This document specifies tolerances on dimensions and form of extruded precision profiles
in alloys EN AW-6060 and EN AW-6063, manufactured with and without a thermal barrier
(see Figures 1 and 2). It applies to extruded products supplied without further surface
treatment. Precision profiles covered in this document are distinguished from extruded
profiles for general applications covered in EN 755‑9 by the following characteristics:
-
— they are designed with mostly uniform wall-thicknesses;
-
— they are mainly used for mechanical engineering, architectural and automotive (except crash-elements) applications;
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— their maximum weight per metre is 10 kg/m;
-
— their maximum wall thickness ratio (tmax/tmin) is 3,5.
In the case of profiles which, due to the complexity of their design, are difficult
to manufacture and specify, then special agreements between supplier and purchaser
may need to be reached.
NOTE The effect of the thermal barrier material on the dimensional tolerances is covered by this document although the actual thermal barrier material itself is not (see EN 14024).
 |
 |
| Key 1 CD maximum 350 mm |
Key 1 CD maximum 350 mm 2 thermal barriers |
| Figure 1 — Profile without thermal barrier | Figure 2 — Profile containing thermal barrier |
Product Details
Descriptors
Construction systems parts
Precision
Form tolerances
Aluminium
Extruding
Metal sections
Surface properties
Profile
Dimensional tolerances
Aluminium alloys
Diameter
ICS Codes
77.150.10 Aluminium products
Committee
NFE/35
International relationships
Identical to:EN 12020-2
ISBN
978 0 539 17456 4
Publisher
BSI