1100 aluminum plate is a commercially pure alloy (minimum 99.00% aluminum) renowned for its exceptional corrosion resistance and superior formability. As a non-heat-treatable alloy, it is the preferred choice for applications where structural strength is secondary to excellent workability and surface finish.
Key Specifications & Features:
Purity: ≥99.00% Aluminum content.
Formability: Soft and highly ductile; ideal for complex deep drawing and spinning.
Corrosion Resistance: Excellent performance in chemical and food processing environments.
Conductivity: High thermal and electrical conductivity, surpassing most 2000 and 7000 series alloys.
Weldability: Easily joined via welding, brazing, or soldering.
Finishing: Responds beautifully to anodizing, making it perfect for decorative nameplates and reflectors.
Common Applications: From chemical storage equipment and heat exchangers to decorative giftware and hollow hardware, 1100 aluminum provides a cost-effective, high-performance solution for diverse industrial needs.
What is 1100 Aluminum Plate?
1100 aluminum plate belongs to the 1000 series aluminum alloys, which are considered near-pure aluminum grades.
It contains minimum 99.0% aluminum, with small amounts of:
- Copper (Cu)
- Iron (Fe)
- Silicon (Si)
👉 Key characteristic:
It is not heat-treatable, meaning its strength is mainly improved through cold working.
1100 Aluminum Plate Chemical Composition
Typical composition:
- Aluminum Al: 99.00
- Si: 0.45
- Cu: 0.05 ~ 0.20
- Zinc Zn: 0.01
- Mn: 0.035
- V: 0.05
- Fe: 0.35
👉 This high purity gives it:
- Excellent corrosion resistance
- High electrical & thermal conductivity
- Excellent forming ability
Properties of 1100 Aluminum Plate
Physical Properties
- Density: 2.71 g/cm³
- Melting point: ~660°C
- Electrical conductivity: ~61% IACS
Mechanical Properties
- Low strength (compared to alloy aluminum)
- Excellent elongation
- Very good deep drawing performance
Key Advantages
- Excellent corrosion resistance
- Outstanding weldability
- Easy to form and machine
- High reflectivity
- Non-toxic and food-safe
Applications of 1100 Aluminum Plate
1100 aluminum is widely used in industries where formability and corrosion resistance are more important than strength.
Industrial Applications:
- Chemical storage tanks
- Heat exchangers
- Pipeline insulation covers
- Food processing equipment
Construction & Decoration:
- Curtain walls
- Ceiling panels
- Reflective surfaces
- Signboards
Electrical Applications:
- Bus conductors
- Electrical connectors
- Cable shielding
1100 Aluminum Plate Performance
- 1100 aluminum plate density 2.71 g/cm 3
- 1100 aluminum plate melting point 643-657°C
- Thermal expansion 23.6× 10-6 / K
- The elastic modulus is 68 GPa
- Thermal conductivity 222 W/m
1.1100 aluminum plate with excellent corrosion resistance.
1100 aluminum plate has good resistance to atmospheric corrosion (including industrial atmospheric and Marine steam) and water corrosion, in addition to the corrosion of most acids and organic matter.
2.1100 Good ductility and formability of aluminum plate.
1100 aluminum sheets can be processed by pressure to produce a variety of aluminum, which can be adapted to the high-speed, turning, milling, boring, planing, and other mechanical processing of most machine tools. In addition, the well-formed aluminum sheet of 1100 aluminum sheet can be rolled into sheets and aluminum foil or pulled into tubes and wires.
3.1100 aluminum plate has no low-temperature brittleness.
1100 aluminum plate below 0 °C, with the reduction of temperature, strength, and formability will not be reduced, but will increase.
4. 1100 aluminum plate strength is low, and can not be strengthened by heat treatment, or cutting.
1100 Aluminum Plate vs Alloy Aluminum Plate
| Feature | 1100 Aluminum (Pure) | Alloy Aluminum (e.g. 6061) |
|---|---|---|
| Strength | Low | High |
| Corrosion Resistance | Excellent | Good |
| Formability | Excellent | Medium |
| Weldability | Excellent | Good |
| Applications | Chemical, food, decoration | Structural, aerospace |
👉 Conclusion:
1100 is chosen for corrosion + forming, alloys are chosen for strength.
1100 vs 3003 vs 5052
| Alloy | Strength | Corrosion | Best Use |
|---|---|---|---|
| 1100 | Low | Excellent | Chemical, electrical |
| 3003 | Medium | Good | Roofing, HVAC |
| 5052 | High | Excellent | Marine |
Which one should you choose?
- Choose 1100 → highest purity + corrosion resistance
- Choose 3003 → better strength + general use
- Choose 5052 → marine / high corrosion
1100 Aluminum Plate Price Factors
The price of 1100 aluminum plate is influenced by:
1. Aluminum ingot price (LME market)
Global aluminum price directly affects cost.
2. Thickness & size
- Thin sheets → higher processing cost
- Thick plates → higher material cost
3. Surface treatment
- Mill finish (cheapest)
- Anodized
- Polished
4. Order quantity
- Bulk orders = lower unit price
- Small orders = higher cost
👉 Typical pricing is usually quoted per kg or per ton
Why Choose 1100 Aluminum Plate?
1100 aluminum is ideal when you need:
✔ High corrosion resistance
✔ Excellent forming capability
✔ Low cost solution
✔ Food-grade safety material
✔ Lightweight metal solution
It is one of the most economical pure aluminum grades available on the market.
FAQ: 1100 Aluminum Plate
Can 1100 Aluminum Plate Be Oxidized?
Yes — 1100 aluminum can be oxidized very easily.
It naturally forms a thin oxide layer (Al₂O₃), which provides:
- Excellent corrosion protection
- Long service life in normal environments
It is also suitable for:
- Anodizing
- Surface finishing
- Color coating
👉 However, compared with alloy aluminum, anodized appearance may be softer and less decorative.
Is 1100 aluminum pure aluminum?
Yes, it contains about 99% aluminum, making it a commercially pure grade.
Is 1100 aluminum strong?
No, it is not designed for high strength applications.
Can 1100 aluminum be welded?
Yes, it has excellent weldability.
What is 1100 aluminum mainly used for?
It is used in chemical equipment, food processing, decoration, and electrical applications.
Is 1100 aluminum expensive?
No, it is one of the most cost-effective aluminum grades.
Is 1100 aluminum plate heat-treatable?
No. 1100 aluminum is a commercially pure alloy that cannot be strengthened by heat treatment. Its properties are developed through cold working (strain hardening). If you require higher strength that can be enhanced via heat treatment, we recommend considering 6061 or 7075 alloys.
What is the difference between 1050, 1060, and 1100 aluminum?
While all belong to the 1xxx series (pure aluminum), the primary difference is the minimum aluminum content:
1050: 99.50% Al
1060: 99.60% Al
1100: 99.00% Al
In practical industrial use, 1100 is often chosen for its slightly higher mechanical strength compared to 1050/1060, while still maintaining excellent corrosion resistance and workability.
Can 1100 aluminum be used for structural applications?
Generally, no. 1100 aluminum has a low tensile strength (typically 13,000–24,000 psi). It is designed for applications where formability, weldability, and corrosion resistance are more important than load-bearing capacity, such as chemical tanks, decorative trim, or heat exchangers.
Does 1100 aluminum plate support anodizing?
Yes. 1100 aluminum offers excellent finishing capabilities. It can be anodized to produce a clear or colored protective layer, which further improves its corrosion resistance and surface aesthetics, making it ideal for nameplates and architectural panels.
Is 1100 aluminum safe for food contact?
Absolutely. Due to its high purity and excellent resistance to organic acids and most chemicals, 1100 aluminum is widely used in the food and beverage industry for cooking utensils, food storage containers, and packaging.
Conclusion: Why Choose 1100 Aluminum for Your Project?
In summary, the 1100 aluminum plate stands out as the premier choice for industries requiring maximum ductility, excellent corrosion resistance, and high conductivity. While it is not designed for high-stress structural use, its ability to withstand harsh chemical environments and its ease of fabrication make it an indispensable material in food processing, chemical handling, and decorative applications.
Choosing the right temper and specification is crucial to ensuring the success of your manufacturing process. As a professional aluminum supplier with over 15 years of export experience, we provide high-quality 1100 aluminum sheets tailored to your precise requirements.
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Whether you need a small batch for testing or a large-scale industrial supply, our team is here to help.
