Overview
Al1050 (AA1050) is a commercially pure aluminum alloy with a minimum aluminum content of 99.5%. As a member of the 1000 series aluminum family, it is widely recognized for its excellent corrosion resistance, outstanding thermal and electrical conductivity, superior formability, and lightweight characteristics.
Due to its high purity and ease of fabrication, Al1050 is commonly used in electrical components, heat transfer equipment, architectural applications, chemical processing systems, and general sheet metal fabrication.
Material Specification
| Property | Value |
|---|---|
| Alloy Designation | AA1050 |
| Aluminum Content | ≥99.5% |
| Alloy Series | 1000 Series |
| Material Type | Commercially Pure Aluminum |
| Density | 2.71 g/cm³ |
| Standard Forms | Sheet, Plate, Bar, Tube, Profile |
Chemical Composition
| Element | Content (%) |
|---|---|
| Aluminum (Al) | ≥99.50 |
| Silicon (Si) | ≤0.25 |
| Iron (Fe) | ≤0.40 |
| Copper (Cu) | ≤0.05 |
| Manganese (Mn) | ≤0.05 |
| Magnesium (Mg) | ≤0.05 |
| Zinc (Zn) | ≤0.05 |
| Titanium (Ti) | ≤0.03 |
| Other Elements | ≤0.03 each |
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 65–95 MPa |
| Yield Strength | 20–30 MPa |
| Elongation | 25–40% |
| Hardness | 20–25 HB |
| Elastic Modulus | 69 GPa |
Physical Properties
| Property | Value |
|---|---|
| Density | 2.71 g/cm³ |
| Melting Point | 646–657°C |
| Thermal Conductivity | 222 W/m·K |
| Electrical Conductivity | 61% IACS |
| Thermal Expansion Coefficient | 23.5 × 10⁻⁶/K |
| Specific Heat Capacity | 900 J/kg·K |
Corrosion Resistance
| Environment | Performance |
|---|---|
| Atmospheric Exposure | Excellent |
| Marine Environment | Very Good |
| Chemical Processing Environment | Excellent |
| Salt Spray Environment | Excellent |
| Oxidation Resistance | Excellent |
Al1050 naturally forms a protective oxide layer, providing outstanding resistance to corrosion in most industrial and outdoor environments.
International Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| AA (USA) | AA1050 |
| EN (Europe) | EN AW-1050A |
| DIN (Germany) | Al99.5 |
| JIS (Japan) | A1050 |
| ISO | Al99.5 |
| GB/T (China) | 1050 |
| UNS | A91050 |
Available Tempers
| Temper | Description |
|---|---|
| O | Annealed |
| H12 | Quarter Hard |
| H14 | Half Hard |
| H16 | Three-Quarter Hard |
| H18 | Full Hard |
| H24 | Strain Hardened & Partially Annealed |
Typical Applications
Electrical Industry
- Busbars
- Electrical Conductors
- Transformer Components
- Electrical Connectors
Electronics Industry
- Heat Sinks
- Electronic Enclosures
- Shielding Components
- LED Lighting Components
Chemical Industry
- Chemical Storage Tanks
- Process Equipment
- Piping Components
Architectural Industry
- Curtain Wall Panels
- Roofing Systems
- Decorative Panels
- Building Cladding
General Manufacturing
- Sheet Metal Parts
- Reflectors
- Nameplates
- Appliance Components
Machining Characteristics
| Manufacturing Process | Rating |
|---|---|
| CNC Milling | Fair |
| CNC Turning | Fair |
| Laser Cutting | Excellent |
| Sheet Metal Fabrication | Excellent |
| Stamping | Excellent |
| Bending | Excellent |
| Welding | Excellent |
| Anodizing | Excellent |
Advantages
Excellent Corrosion Resistance
Suitable for long-term indoor and outdoor applications.
High Thermal Conductivity
Ideal for heat dissipation components and thermal management systems.
High Electrical Conductivity
Widely used in electrical and electronic industries.
Excellent Formability
Perfect for deep drawing, bending, stamping, and sheet metal fabrication.
Lightweight
Approximately one-third the weight of steel.
Excellent Surface Finish Capability
Suitable for anodizing, powder coating, polishing, and decorative applications.
Limitations
Low Mechanical Strength
Not recommended for structural or high-load applications.
Limited Wear Resistance
Can be scratched or worn more easily than harder aluminum alloys.
Moderate Machinability
Machining performance is lower than alloys such as 6061 or 7075.
Not Suitable for High-Stress Components
Better suited for conductivity, corrosion resistance, and formability applications.
Comparison with Other Aluminum Alloys
| Property | Al1050 | Al1060 | Al5052 | Al6061 | Al7075 |
|---|---|---|---|---|---|
| Aluminum Content | 99.5% | 99.6% | 97% | 95% | 90% |
| Strength | Low | Low | Medium | High | Very High |
| Corrosion Resistance | Excellent | Excellent | Excellent | Good | Fair |
| Weldability | Excellent | Excellent | Excellent | Good | Poor |
| Machinability | Fair | Fair | Good | Excellent | Excellent |
| Anodizing Performance | Excellent | Excellent | Good | Excellent | Excellent |
| Electrical Conductivity | Excellent | Excellent | Medium | Medium | Low |
| Cost | Low | Low | Medium | Medium | High |
Comparison with Common Engineering Metals
| Material | Density (g/cm³) | Corrosion Resistance | Strength | Weight |
|---|---|---|---|---|
| Al1050 | 2.71 | Excellent | Low | Very Light |
| Stainless Steel 304 | 7.93 | Excellent | Medium | Heavy |
| Carbon Steel 1018 | 7.85 | Poor | Medium | Heavy |
| Brass C360 | 8.47 | Good | Medium | Heavy |
| Copper C110 | 8.94 | Excellent | Low | Heavy |
| Titanium Grade 5 | 4.43 | Excellent | Very High | Light |
Recommended Surface Finishes
Al1050 supports a wide range of surface finishing processes:
- Clear Anodizing
- Color Anodizing
- Hard Anodizing
- Powder Coating
- Spray Painting
- Sandblasting
- Brushing
- Mirror Polishing
- Laser Marking
- Silk Screen Printing
Frequently Asked Questions (FAQ)
What is Al1050 aluminum?
Al1050 is a commercially pure aluminum alloy containing at least 99.5% aluminum. It is known for its excellent corrosion resistance, thermal conductivity, electrical conductivity, and formability.
Is Al1050 suitable for CNC machining?
Yes. Al1050 can be CNC machined; however, due to its softness, it may produce burrs and achieve lower dimensional stability compared to 6061 or 7075 aluminum alloys.
What is the difference between Al1050 and Al1060?
The primary difference is aluminum purity.
| Property | Al1050 | Al1060 |
|---|---|---|
| Aluminum Content | 99.5% | 99.6% |
| Strength | Slightly Higher | Slightly Lower |
| Conductivity | Excellent | Excellent |
| Cost | Similar | Similar |
Can Al1050 be anodized?
Yes. Al1050 offers excellent anodizing performance and can achieve clear, black, blue, red, gold, green, and custom-colored anodized finishes.
Is Al1050 weldable?
Yes. Al1050 provides excellent weldability and is suitable for TIG welding, MIG welding, resistance welding, and other common aluminum welding processes.
What industries commonly use Al1050?
Typical industries include:
- Electrical & Electronics
- Heat Transfer Systems
- Chemical Processing
- Construction & Architecture
- Consumer Products
- Sheet Metal Fabrication
Is Al1050 food-safe?
Yes. Due to its corrosion resistance and non-toxic characteristics, Al1050 is commonly used in food processing equipment and food packaging applications.
What surface finishes are available for Al1050?
Available finishes include:
- Anodizing
- Hard Anodizing
- Powder Coating
- Painting
- Sandblasting
- Brushing
- Polishing
- Laser Marking
- Silk Screen Printing
Is Al1050 better than 6061 aluminum?
It depends on the application.
Choose Al1050 when you need:
- Better corrosion resistance
- Higher electrical conductivity
- Better thermal conductivity
- Superior formability
Choose 6061 when you need:
- Higher strength
- Better machinability
- Structural performance
Does GCNOV provide custom manufacturing services for Al1050?
Yes. GCNOV offers complete manufacturing solutions for Al1050 aluminum components, including:
- CNC Machining
- Sheet Metal Fabrication
- Laser Cutting
- Welding
- Surface Finishing
- Mechanical Assembly
- Prototype Development
- Low-Volume Manufacturing
- Mass Production
Request a Quote
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Services Available:
- CNC Machining
- Sheet Metal Fabrication
- Surface Finishing
- Mechanical Assembly
- PCB & PCBA Integration
- Box Build Assembly
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