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Forged Aluminum Product for Excellent Fatigue, Toughness and Corrosion Resistance Characteristics.
During collaborative discussions with industry experts, a recurring deficiency was noted for forged aluminum product that requires excellent fatigue, toughness and corrosion resistance characteristics. A study was performed to evaluate suitable aluminum alloy compositions capable of meeting the strict criteria for forged components. The result of this study was the development and application of an alloy and temper well adapted for aerospace and commercial forging applications.
Scot Forge has devised a proprietary processing method for this aerospace alloy and dubbed it Highlander 613™. Originally Highlander 613™ was developed as a better alternative to the traditionally forged alloy 6061 but, after reviewing and optimizing the material’s forging properties, we have also found it to present substantial benefits when compared aluminum alloys of the 7XXX and 2XXX series as an all-around versatile product.
Highlander 613™ has demonstrated significantly enhanced corrosion resistance properties and is virtually immune to stress corrosion cracking. Its fracture toughness and fatigue resistance exceed many of the other 2XXX, 6XXX and 7XXX series alloys while echoing the excellent machinability of 2XXX and 7XXX series. Highlander 613™ also outperforms many of the other aerospace alloys at elevated temperatures, exceeds stress rupture properties and has superior brazeability. Additionally, Highlander 613™ can be welded by conventional means and is impervious to hot cracking during welding whereas the alloys of the 7XXX series cannot and are not.
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