Aluminium alloy 7020 is a high-strength aerospace alloy known for its excellent combination of strength, toughness, and corrosion resistance. It belongs to the 7xxx series and is primarily composed of zinc as its principal alloying element, along with small amounts of copper and magnesium.
| Properties of 7020 Aluminium Alloy |
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Good Fatigue Resistance: The alloy exhibits good fatigue resistance, making it suitable for applications where cyclic loading is a concern, such as in aerospace components. Machinability: 7020 alloy is machinable, but it may present challenges due to its high strength. Specialized machining techniques and tools may be required for efficient machining. Excellent Toughness: The alloy exhibits excellent toughness, providing resistance to crack propagation, which is a critical property in applications subjected to dynamic loads and impacts. Heat Treatability: 7020 is a heat-treatable alloy, and various heat treatment processes, such as solution heat treatment and artificial aging, can be employed to enhance its mechanical properties. High Strength: 7020 alloy is known for its exceptional strength, making it suitable for applications where high-strength-to-weight ratio is crucial. It is often used in aerospace and military applications. Corrosion Resistance: The alloy offers good corrosion resistance, particularly in comparison to other high-strength aluminum alloys. However, it is not as corrosion-resistant as some other alloys like 7075, which contains more zinc. Pressure Vessels: 7020 aluminum alloy may find applications in the construction of pressure vessels where high strength and toughness are required. Specialized alloys like 7020 are chosen for their ability to withstand pressure and impacts. Good Weldability: While 7020 alloy is generally considered weldable, precautions are necessary to minimize the risk of hot cracking. Specialized welding techniques, such as friction stir welding, may be employed to achieve high-quality welds. |
Alloy : 7020 Aluminium Alloy
Temper:
O / F / T3, T4, T5, T6, T7, T351, T451, T651, T851 / H12, H14, H16, H18, H19, H22, H24, H26, H32, H34, H36, H38, H111, H112, H321
Wall Thickness:01mm to 400mm
Type of Pipe: Seamless pipe /Seam pipe /Weld pipe
Standard: GB/T 3880-2012 ASTMB209 EN485
Surface Treatment: Mill Finish / Brush Polish / Bright Finish
MOQ: The inventory has no MOQ 2mt-3mt
Packing: Standard Export Packing
Port of Dispatch: It depends on the supplier's location and shipping arrangements
Delivery Time: The inventory is 5-7 days . 25-30 days for customized products
Payment: TT / LC / TT+LC
Chemical Composition |
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| Aluminium (Al): | 90.7% |
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| Zinc (Zn): | 8.5-9.5% |
| Magnesium (Mg): | 1.2-1.8% |
| Copper (Cu): | 1.2-2.0% |
| Manganese (Mn): | 0.15% |
| Iron (Fe): | 0.15% |
| Chromium (Cr): | 0.10% |
| Titanium (Ti): | 0.10% |
| Other Elements: | 0.05% (each), 0.15%(total) |
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