At 2.7 g/cm³ aluminium is only about one third of the density of steel. Aluminium is a reactive metal which is highly susceptible to oxidation and reacts with the oxygen in the air to form a natural oxidation layer which acts as an anti-corrosion coating and protects the underlying metal from further attack (with pH levels ranging from 4.5 to 8.5).
We use AlMg alloy products in our company. Magnesium is added to the aluminium in this alloy. As the Mg content rises, so the strength and hardness increase during the cold working process. AlMg3-alloys have good levels of resistance to the effects of the weather and to slightly alkaline media. They are saltwater-proof and suitable for applications in the food industry.
EJ Deutschland GmbH Hellerwaldstr.6 56154 Boppard Germany Phone: 0049 (0)67428722-0 Fax: 0049 (0)67428722-50