3003 aluminum honeycomb core specifications are important for industries that require lightweight and strong structural materials. The 3003 aluminum honeycomb core is widely used in aerospace, transportation, construction, and interior decoration because of its excellent strength-to-weight ratio.

3003 Aluminum Composition
Understanding 3003 aluminum composition helps explain its good corrosion resistance and formability.
3003 Aluminum Alloy Composition
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance |
| Manganese (Mn) | 1.0 – 1.5 |
| Copper (Cu) | 0.05 – 0.20 |
| Silicon (Si) | ≤ 0.6 |
| Iron (Fe) | ≤ 0.7 |
| Zinc (Zn) | ≤ 0.1 |
The manganese element improves the strength of the 3003 aluminum alloy composition, making it suitable for aluminum honeycomb core material.
3003 Aluminum Specifications

The most common 3003 aluminum specifications used for honeycomb cores are shown below.
| Property | Typical Value |
|---|---|
| Alloy | 3003 aluminum |
| Temper | H18 / H19 / H22 |
| Density | 2.73 g/cm³ |
| Tensile strength | 130 – 200 MPa |
| Yield strength | 90 – 160 MPa |
These 3003 aluminum specs provide good strength and flexibility for honeycomb structures.
3003 Aluminum Hardness
3003 aluminum hardness depends on the temper condition of the material.
Hardness Comparison
| Temper | Hardness (HB) | Description |
|---|---|---|
| 3003-O | 28 – 32 | Soft condition |
| 3003-H14 | 40 – 45 | Strain hardened |
| 3003-H24 | 45 – 50 | Stabilized |
| 3003-H22 | 38 – 43 | Moderate hardness |
Because of its moderate 3003 aluminum hardness, the alloy is suitable for forming honeycomb structures.
Aluminum Honeycomb Core Density
Aluminum honeycomb core density depends on foil thickness and cell size.
Typical Honeycomb Core Density
| Cell Size | Foil Thickness | Density |
|---|---|---|
| 3 mm | 0.03 mm | 32 kg/m³ |
| 6 mm | 0.04 mm | 40 kg/m³ |
| 10 mm | 0.05 mm | 48 kg/m³ |
| 15 mm | 0.06 mm | 60 kg/m³ |
Low aluminum honeycomb core density makes these materials ideal for lightweight structures.
3003-H22 Aluminum Properties
| Property | Value |
|---|---|
| Tensile strength | 145 MPa |
| Yield strength | 115 MPa |
| Elongation | 8 – 12 % |
| Corrosion resistance | Excellent |
These 3003-H22 aluminum properties provide good durability and stability for honeycomb panels.
Difference Between 3003 H14 and 3003 H24
Many users ask: What is the difference between 3003 H14 and 3003 H24?
| Property | 3003 H14 | 3003 H24 |
|---|---|---|
| Strength | Medium | Slightly higher |
| Hardness | Moderate | Higher |
| Formability | Good | Moderate |
| Stability | Normal | Stabilized after forming |
Difference Between 6061 and 3003 Aluminum
Another common question is: What is the difference between 6061 and 3003 aluminum?
| Property | 3003 Aluminum | 6061 Aluminum |
|---|---|---|
| Alloy type | Mn alloy | Mg-Si alloy |
| Strength | Medium | High |
| Formability | Excellent | Moderate |
| Corrosion resistance | Very good | Good |
| Typical use | Honeycomb cores, panels | Structural parts |
What Is a 3003 Aluminum Honeycomb Core?
A 3003 aluminum honeycomb core is a lightweight structure made from thin aluminum foil bonded together to form hexagonal cells. This honeycomb structure provides excellent rigidity while keeping the weight very low.
Basic Structure of Aluminum Honeycomb Cores
| Feature | Description |
|---|---|
| Material | 3003 aluminum alloy foil |
| Structure | Hexagonal honeycomb cells |
| Core thickness | 3 mm – 100 mm |
| Cell size | 3 mm – 25 mm |
| Foil thickness | 0.03 mm – 0.1 mm |
Does 3003 Aluminum Work Harden?
Yes, 3003 aluminum work hardens during cold working. This means its strength increases when it is rolled or formed.
Work Hardening Characteristics
- Improved mechanical strength
- Increased hardness
- Better structural stability
- Suitable for honeycomb core forming
Because of this property, 3003 aluminum alloy works well in honeycomb manufacturing.
How Strong Are Aluminum Honeycomb Panels?

Many industries ask: How strong are aluminum honeycomb panels?
Aluminum honeycomb panels combine thin aluminum skins with a honeycomb core to create a very strong structure.
Typical Mechanical Performance
| Property | Performance |
|---|---|
| Compressive strength | High |
| Weight | Very low |
| Stiffness | Excellent |
| Impact resistance | Good |
The honeycomb structure distributes loads evenly, which gives aluminum honeycomb cores excellent structural performance.
Applications of Aluminum Honeycomb Cores
Common Applications
- Aerospace interior panels
- Train and subway wall panels
- Marine structures
- Architectural cladding panels
- Clean room panels
- Furniture panels
- Automotive lightweight structures
- Decorative aluminum composite panels
These applications show why 3003 aluminum honeycomb core specifications are important for engineers and manufacturers.
3003 Aluminum Honeycomb Cores for sale
The 3003 aluminum honeycomb core is one of the most widely used lightweight structural materials. With its balanced 3003 aluminum composition, hardness, density, and mechanical properties, it provides excellent performance for honeycomb structures.
Understanding 3003 aluminum specifications, 3003-H22 aluminum properties, and the differences between 3003 H14, H24, and 6061 aluminum helps engineers choose the right material for their projects.
Because of its high strength-to-weight ratio and excellent corrosion resistance, 3003 aluminum honeycomb cores remain a key material in aerospace, construction, transportation, and industrial applications.