8000 Series Aluminum Alloy

8000 series aluminum alloy belongs to aluminum-lithium alloy, the main component is lithium, because lithium is the lightest metal in nature, after adding lithium element to aluminum alloy, it can effectively reduce the specific gravity while ensuring the strength of the alloy material, which is ideal for packaging material.

8000 series aluminum is a newly developed aluminum casting rolling alloy that primarily uses Li and Sn as its main alloying elements. It is an essential material for the food and pharmaceutical industries, as compared to the 1000 series and 3000 series.

In the 8000 series aluminum, the magnesium content ranges between 2% and 10%, and the copper content is between 1.2% and 2%. Additionally, the zinc content ranges between 7.5% and 9.5%. These elements improve the strength and toughness of the 8 series aluminum alloy, allowing it to maintain good mechanical properties even in high-temperature environments.

The primary alloys of the 8 series aluminum alloy include 8011, 8021, 8079, and 8006.

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Main Alloy Chemistry Typical

8011 Aluminum Alloy

Element	Si	Fe	Cu	Mn	Mg	Zn	Ti	Others (each)	Others (total)	Al
Maximum Content	0.5 - 0.9	0.6 - 1.0	0.1	0.2	0.05	0.05	0.08	0.05	0.15	Remainder

8021 Aluminum

Element	Si	Fe	Cu	Mn	Mg	Zn	Ti	Others (each)	Others (total)	Al
Maximum Content	0.05 - 0.3	0.7	0.05 - 0.3	0.05	-	0.1	-	0.05	0.15	Remainder

8079 Aluminum

Element	Si	Fe	Cu	Mn	Mg	Zn	Ti	Others (each)	Others (total)	Al
Maximum Content	0.05 - 0.3	0.7	0.05 - 0.3	0.05	-	0.1	-	0.05	0.15	Remainder

8006 Aluminum

Element	Si	Fe	Cu	Mn	Mg	Zn	Ti	Others (each)	Others (total)	Al
Maximum Content	0.4 - 0.8	0.7	0.05 - 0.25	0.05	0.8 - 1.3	0.1	-	0.05	0.15	Remainder

The above alloy element ratio is based on the national standard. If you have special chemical composition requirements for 8000 series aluminum alloys, please contact our product specialist.

Physical Properties

Density: The density of 8xxx series aluminum is usually between 2.63-2.80 g/cm³, which is lighter than ordinary aluminum alloys.
Melting point: The melting point of 8xxx series aluminum alloy is about 480-650°C, depending on its alloy composition and processing state.
Linear expansion coefficient: The linear expansion coefficient of 8000 series aluminum alloy is about 22.2-24.2×10^-6/K in the temperature range of 20-100°C.
Thermal conductivity: The thermal conductivity of 8000 series aluminum alloy is about 121-202 W/(m·K) at 20°C, slightly higher than that of ordinary aluminum alloy.
Electrical conductivity: The electrical conductivity of 8000 series aluminum alloy is about 27-48 MS/m at 20°C, slightly lower than that of ordinary aluminum alloy.

Alloy	Density (g/cm³)	Melting Range (℃)	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)
8011	2.71	580 - 640	125 - 165	≥ 110	≥ 2
8021	2.71	590 - 650	135 - 185	≥ 120	≥ 3
8079	2.71	570 - 625	85 - 125	≥ 70	≥ 5
8006	2.71	580 - 655	80 - 140	≥ 60	≥ 10

Product Types

Due to its unique characteristics, the 8000 series aluminum alloy is typically only rolled into sheets and coils for use as packaging materials.

Sometimes, our customers require delivery of aluminum plates to fulfill their manufacturing needs for bottle cap materials.

Typically, the 8000 alloy of aluminum is provided in the form of aluminum coils, or cut into aluminum strips to accommodate the production lines of downstream manufacturers.

Applications

Currently, the main service market for the 8000 series aluminum alloy is in the packaging of food and medicine. The 8 series aluminum alloy can be strengthened and improved in its strength and corrosion resistance through artificial aging and natural aging methods, thus meeting the requirements for safe, sanitary, and lightweight packaging.

Packaging

8021 aluminum foil is a type of aluminum alloy that boasts excellent corrosion resistance and sealing performance. It is commonly used in the field of pharmaceutical packaging, where it is often employed as a packaging material to ensure the safety and quality stability of medicine boards. This type of aluminum foil can also be utilized to package cosmetics, cigarettes, food, and other products, helping to extend their shelf life and maintain their freshness.

Additionally, 8011 aluminum alloy is commonly used as a bottle cap material in the food packaging field. This type of alloy is known for its good sealing and antioxidant properties, which can effectively protect the food and beverages inside the bottle from pollution and oxidation. The 8011 aluminum alloy bottle cap material can also be processed in a variety of ways to create different bottle cap shapes, such as screw caps, pull rings, and rolling edge caps, depending on the specific production requirements.

8000 Series Aluminum Industry Supply At HDM

8011 Aluminum Coil

At HDM, we typically purchase 8011 hot-rolled or cast-rolled coils from upstream suppliers for further processing into thinner food containers or household foils.

8021 Aluminum Foil-stock

HDM is one of the few suppliers in China that can produce and supply 8021 pharmaceutical foils or raw materials.

8079 Aluminum Foil-stock

We can provide downstream manufacturers with 8079 aluminum foil materials and also deliver 8079 aluminum foils.

8006 Aluminum Alloy

We can provide downstream manufacturers with 8006 aluminum foil materials and also deliver 8006 aluminum foils.

For other 7000 series product types, such as aluminum bars and tubes,
please contact our product specialist.

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