Aluminum Alloy 1100 Datasheet

Aluminum 1100 is an alloy widely used due to its exceptional forming properties, particularly in the fully soft, annealed temper. It can be a suitable option for applications that require stamping, bending, spinning, roll forming, and drawing. It exhibits good thermal conductivity, making it a popular choice for heat exchangers and heat sinks in electrical applications.

Aluminum Alloy 1100 Datasheet

Aluminium 1100 Chemical Composition

Element% Composition
Be≤ 0.0008
Zn≤ 0.10
Cu≤ 0.20%
Mn≤ 0.50
Fe+Si≤ 0.95

Physical Properties of Aluminium Alloy 1100 

Melting Point  °C643 – 657.2
Density  g/cm32.71

Aluminium 1100 Mechanical Properties  

Tensile Strength, Yield( MPa)34
Tensile Strength, Ultimate( MPa)89.6
Modulus of Elasticity( GPa)68.9
Elongation at Break15 – 28%
Ultimate Bearing Strength( MPa)159
Bearing Yield Strength( MPa)55
Tensile Strength, Ultimate( MPa)89.6
Fatigue Strength( MPa)34.5
Shear Modulus( MPa)26
Shear Strength( MPa)62.1
Poissons Ratio0.33
Hardness, Brinell23

Alloy Designations

The following designations can also refer to 1100 aluminium alloy :

AMS 4003AMS 7220ASTM B209ASTM B210ASTM B211ASTM B221
ASME SFA5.10 (ER1100)ASME SFA5.3 (E1100)ASTM B241ASTM B247ASTM B313ASTM B316
ASTM B548MIL A-52174MIL A-52177MIL C-26094MIL R-5674MIL S-24149/5
AWS A5.10 (ER1100)AWS A5.10 (ER1100)AWS A5.3 (E1100)MIL E15597 (MIL-1100)MIL I-23413 (MIL-1100)QQ WW-T-700/1
MIL W-6712MIL W-85QQ A-1876QQ A-1876QQ A-250/1QQ A-430
SAE J454     


Please note the following regarding UNS A91100: it can be welded easily using traditional techniques like TIG or MIG welding. The most commonly used filler metal for this alloy is ER4043, an aluminum-silicon alloy that offers excellent corrosion resistance while minimizing porosity when applied correctly during welding operations. It should be noted that preheating is generally not required for this alloy due to its low melting point. Preheating can still enhance the quality of welds made from this material.


The Aluminum 1100 alloy is highly machinable, especially in a hard temper. Carbide tooling is recommended, but high-speed steel tooling can also be used. If heavy cuts are needed, an oil lubricant should be applied.


Aluminum 1100 alloy can be easily formed both hot and cold. It can also be extensively cold-worked in the annealed condition without intermediate annealing.


The Aluminum 1100 alloy can be easily hot forged without encountering much difficulty.

Heat Treatment

Aluminum Alloy 1100 can be heat treated to increase strength, but this lowers its corrosion resistance. Other heat treatments like age or precipitation hardening may be used, but they are more complex and expensive.

Corrosion Resistance

After heat treatment processes, some loss of corrosion resistance occurs, especially with age hardening. However, due to its high chromium content at 0.2%, this alloy still protects against oxidation effects.

Heat Resistance

When machining aluminium alloys, it’s crucial to use cutting fluids to reduce wear on your tools and improve productivity. It is because the material has low thermal conductivity, and cooling down the cutting edges is necessary during extended operation periods to avoid tool failure or poor surface finishes. Furthermore, aluminium alloys have excellent heat-resistant properties, making them ideal for high-temperature applications where other materials may deform.


Extensive cold work on Aluminum 1100 alloy necessitates annealing. The process should be carried out at 343°C (650°F) for a sufficient time, and then air-cooled.

Applications of Aluminium Alloy 1100

Aluminum 1100 alloy is a highly sought-after grade of aluminium used in various industries. Its excellent corrosion resistance and formability make it an ideal material for various purposes. Aluminum 1100 is commonly employed in:

  • Chemical Equipment
  • Transport
  • Food industry
  • Architectural industry
  • New Energy


Is it possible to extrude 1100 aluminum?

1100 aluminum is a soft metal that contains almost no additional elements. It cannot be subjected to heat treatment but can be extruded into complex shapes while retaining a shiny finish. 

What is the difference between Aluminium alloy 1100 and 6061?

1. Aluminum 1100 has a higher strength-to-weight ratio than aluminum 6061.

2. 6061 has greater malleability than standard pure aluminum 1100.

3. Aluminum 1100 is prone to cracking when welded due to its composition. Aluminum 6061 can be easily welded without cracking or failure when appropriately cooled.

4. 1100 is a less expensive material compared to 6061.

Is Aluminium 1100 suitable for use in casting?

Aluminum 1100 is a pure alloy easily cast into coils, sheets, billets, foil, and ingots. It’s suitable for casting because it can be melted and formed into desired shapes. 

What is the meaning of H14 in aluminum 1100 H14?

The term “H14” refers to the temper of a material. The “H1” indicates that the material has undergone strain hardening (cold working), while the “4” indicates that it is half-hard. This material contains manganese as its primary alloying element, which makes it a suitable choice for creating spun, formed, or stamped parts.


Please contact us for more information on 1100 aluminum and other materials. Enze is China’s 1100 aluminum sheet and 1100 aluminum plate supplier. We offer a range of manufacturing capabilities and value-added services for prototyping and production needs.