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prEN 12020-1

Aluminium and aluminium alloys - Extruded precision profiles in alloys EN AW-6060 and EN AW-6063 - Part 1: Technical conditions for inspection and delivery

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Draft
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prEN 12020-1
Directives or regulations
None
Standard history
Status
Date
Type
Name
09.06.2008
Main
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 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 uniformly wall thicknesses; - they are mainly used for mechanical engineering, architectural and automotive (except crash-elements) applications; - the maximum weight by meter is 10 kg/m; - the maximum wall thickness proportion (Smax/Smin) is 3,5. In the case of profiles, which, due to the complexity of their design, are difficult to manufacture and specify, 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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