3mm aluminium sheet weight
Aluminium sheets are renowned for their lightweight, durability, and excellent corrosion resistance. Among various thickness options, the 3mm aluminium sheet stands out for its versatility and balance between rigidity and weight.
What is a 3mm Aluminium Sheet?
A 3mm aluminium sheet is a flat, rolled metal sheet with a thickness of exactly 3 millimeters. It is widely used across multiple industries due to its adaptability, ease of fabrication, and favorable strength-to-weight ratio. These sheets can be made from different grades and alloys depending on customer requirements, including but not limited to 1100, 3003, 5052, and 6061 aluminium alloys.
The weight of a 3mm aluminum sheet is a deceptively simple calculation, yet in practice, it's influenced by several factors beyond the theoretical density of aluminum (approximately 2.7 g/cm³). Variations in alloy composition significantly impact the final weight. Different aluminum alloys possess slightly different densities, and our factory utilizes several, from the common 6061 for its strength to 5052 for its corrosion resistance. This means that even with consistent sheet dimensions, we might observe minor weight discrepancies between batches depending on the alloy used in production that day. Further, slight variations in sheet thickness, even within the stated 3mm tolerance, can cumulatively affect the total weight of a larger sheet, especially for those used in large-scale manufacturing projects.
Beyond alloy and thickness, the manufacturing process itself plays a subtle role. Imperfections introduced during rolling or annealing, though usually within acceptable industry standards, can slightly influence density and thus weight. We've also observed that surface treatments, like anodizing, can add a negligible yet measurable amount of weight, depending on the specific process used. Therefore, while a simple calculation provides a baseline estimate, accurate weight determination for a specific 3mm aluminum sheet often requires taking these variables into consideration and, occasionally, weighing the actual sheet to assure precision for clients with stringent requirements.
Weight Calculation and Standard Specifications
Weight Formula for Aluminium Sheet
The weight of an aluminium sheet can be precisely calculated using the formula:
[\text{Weight (kg)} = \text{Length (m)} \times \text{Width (m)} \times \text{Thickness (m)} \times \rho]
Where:
- (\rho) = Density of aluminium ((\approx 2700 \,kg/m^3))
Example: Weight of a Standard 3mm Aluminium Sheet Panel
| Dimension | Value |
|---|---|
| Thickness | 3 mm (0.003 m) |
| Width | 1.22 m (typical) |
| Length | 2.44 m (typical) |
| Density ((\rho)) | 2700 kg/m³ |
| Weight | (2.44 \times 1.22 \times 0.003 \times 2700 = 24.1\,kg) |
Thus, a 3mm aluminium sheet sized 1.22m x 2.44m weighs approximately 24.1 kilograms.
Chemical Properties of Common 3mm Aluminium Alloy Sheets
| Alloy | Al (%) | Si (%) | Fe (%) | Cu (%) | Mn (%) | Mg (%) | Zn (%) | Ti (%) |
|---|---|---|---|---|---|---|---|---|
| 1100 | 99.0 min | 0.95 max | 0.95 max | 0.05 | 0.05 | 0.03 | 0.10 | 0.03 |
| 3003 | 96.8 min | 0.60 max | 0.70 max | 0.05 | 1.20-1.50 | 0.10 | 0.10 | 0.03 |
| 5052 | 97.25-98.99 | 0.25 max | 0.40 max | 0.10 max | 0.10 max | 2.2-2.8 | 0.10 | 0.15 max |
| 6061 | 97.9 min | 0.40-0.80 | 0.70 max | 0.15-0.40 | 0.15 max | 0.80-1.20 | 0.25 max | 0.15 max |
Note: Actual composition varies per standard and specification.
Features of 3mm Aluminium Sheets
- Lightweight: At 2.7 g/cm³ density, these sheets significantly reduce weight compared to steel, improving fuel efficiency in automotive/aerospace applications.
- Corrosion Resistance: Aluminium naturally forms a protective oxide layer, making 3mm thick sheets ideal for outdoor and marine environments.
- Good Machinability & Formability: Aluminium sheets can be readily cut, drilled, welded, and bent without fatigue.
- Excellent Thermal and Electrical Conductivity: Ideal for heat exchangers, electronic casings, and cooling systems.
- Recyclability: Aluminium is 100% recyclable without loss of quality.
Applications of 3mm Aluminium Sheets
Due to their ideal thickness and strength-to-weight balance, 3mm aluminium sheets are widely used in:
- Construction: Roofing, cladding, facades, and structural components.
- Transportation: Body panels for cars, trucks, trailers, boats, and aircraft.
- Manufacturing: Machine parts, fabricated equipment casings, furniture.
- Signage & Advertising: Durable for outdoor and indoor usage.
- Electronics & Electrical: Enclosures, chassis, and heat dissipation panels.
- Consumer Goods: Appliance housings, cookware, and decorative finishes.
Physical Properties of Aluminium 3mm Sheet
| Property | Value |
|---|---|
| Density | ~2.7 g/cm³ |
| Tensile Strength | 55 – 310 MPa* (depends on alloy) |
| Yield Strength | 34 – 275 MPa* |
| Elongation at Break | 8% – 30% |
| Modulus of Elasticity | 69 GPa |
| Thermal Conductivity | 150 – 220 W/m·K |
| Electrical Conductivity | Approx. 37!10^6 S/m |
*Tensile and yield strengths vary by aluminium alloy and temper.
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