Optiquest iRIS 320 Manuel d'utilisateur télécharger pdf (Page 72)

iRIS 220 / iRIS 320, V1.19 User Guide - 70

iQuest (NZ) Ltd - PO Box 15169, Hamilton, New Zealand Tel: +64 7 857-0810 Fax: +64 7 857-0811 Email: ique[email protected]

14 Appendix E – iRIS 320 Enclosure Material Spec

The iRIS 320 enclosure is milled from two solid blocks of 5083 aluminium alloy, which is then hard anodised.

This is the highest strength non heat-treatable alloy in general commercial use, possessing very high welded

strength and excellent corrosion resistance. It is used for many types of welded assemblies, such as tanks,

dump trucks, cryogenic applications and ship superstructures. It is not however recommended for use in

corrosive environments above 60°C.

Approximate Mechanical Properties:

Temper H32

Ultimate Tensile MPa 317

0.2% Proof Stress MPa 228

% min in elongation 50mm

(1.5mm thick specimen)

Ultimate Shear Stress (MPa) 179

Chemical Composition:

Aluminium 93.25%

Magnesium 4.0 - 4.9%

Iron 0.4%

Copper 0.1

Manganese 0.5 – 1.0%

Silicon 0.4%

Chromium 0.05 - 0.25%

Zinc 0.25%

Titanium 0.15%

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Optiquest iRIS 320 Manuel d'utilisateur Page 72