1 Scope
This document specifies technical conditions for inspection and delivery of alloys
EN AW-6060 and EN AW-6063 extruded precision profiles manufactured with and without
a thermal barrier (see Figures 1 and 2) and without further surface treatment.
Precision profiles for which this document is applicable are distinguished from extruded profiles for general applications covered
in EN 755‑9 by the following characteristics:
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— they are designed with mostly uniform wall-thicknesses;
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— they are mainly used for mechanical engineering, architectural and automotive (except crash-elements) applications;
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— the maximum weight by meter is 10 kg/m;
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— the max. wall-thickness proportion (tmax/tmin) of 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 EN 12020‑2 although the actual thermal barrier material itself is not (see EN 14024).
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Key
1 CD maximum 350 mm
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Key
1 CD maximum 350 mm
2 thermal barriers
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| Figure 1 — Profile without thermal barrier | Figure 2 — Profile containing thermal barrier |