...Aluminium Aluminium has many advantages over other materials and is the most widely used metal after steel. The lightweight, flexible but durable design properties of aluminium extrusions allow an enormous...
Aluminium Metal Glossary Ageing , Age Hardening , Precipitation Hardening The second stage in the process (solution treatment and ageing) for those aluminium alloys that respond to heat treatment as a...
Aluminium Metal Glossary Water Staining A residue left on aluminium that has been wet and allowed to dry naturally. This is very difficult to remove and cannot be improved by polishing or anodising. Work...
Aluminium Metal Glossary Temper Designations There are two systems of letters and digits used, after the alloy designation number, to define and describe the temper of an aluminium alloy. The following...
Aluminium Metal Glossary Hall Heroult Process , Smelting The main process used for the production of Aluminium metal whereby Alumina is dissolved in a salt bath of molten cryolite and subject to an electrolysis...
Aluminium Metal Glossary Natural Ageing The process that can alter the hardness and strength in some alloys after a period of time at ambient (room) temperature. It is caused by the spontaneous precipitation...
Aluminium Metal Glossary Cast , Heat, Melt These terms are used interchangeably to refer to the product of a single melting furnace charge. Sometimes the furnace contents are tapped into two or more ladles...
Aluminium Metal Glossary Scaffolding Tube A ‘welded’ tube, size 1 29/32 inch O/D x 7 swg wall thickness (7swg = 0.176 inch / 4.47mm) used for scaffolding that has been Drift Tested Scalping Mechanical...
Aluminium Metal Glossary Gauge Length In a tensile test this is the prescribed part of the cylindrical or prismatic portion of the test piece on which elongation is measured at any moment during the test....
Aluminium Metal Glossary Finstock Narrow strip in the thickness range 0.2mm to 0.4mm used for finning of heat exchanger tubes in applications such as air conditioning. Fixed Mandrel A device for producing...