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1050 Aluminum Coil
Available Configurations
Properties common to all products in this list
| Thickness | Coil Width | Length | Temper Options | Other Grades Available |
|---|---|---|---|---|
| 0.05mm to 0.3mm | 305mm to 959mm | 0.5m to 100m | Annealed, Hard | High-Purity, Ultra-High-Purity, Al 1070, Al 1199, Al 1200 |
Need custom configurations? Please contact us.
Key Features
Al 1050 Aluminum Coil is a commercially pure 1xxx series coil with a minimum aluminum content of 99.5%, supplied in a continuous-feed reel format. Its low total alloying element content preserves high conductivity relative to higher-alloyed grades, while the coil geometry enables uninterrupted roll-to-roll processing:
Electrical & Thermal Conductivity (~57–59% IACS, ~218 W/m·K)
Low total Fe+Si content minimises solid-solution electron scattering, yielding electrical conductivity of ~57–59% IACS and thermal conductivity of ~218 W/m·K — higher than 1200 but below 1070 and 1199, reflecting the balance between purity and cost in the standard commercial 1xxx grade.
Continuous-Feed Reel Format
The coil format provides uninterrupted material feed without the joins or batch boundaries inherent to sheet-form supply — enabling roll-to-roll lamination, coating, and electrode fabrication without interruption.
High Ductility & Low Flow Stress
High ductility and low flow stress support continuous slitting, winding, and lamination with low tooling wear.
Naturally Passivating Oxide Layer
The self-limiting Al₂O₃ surface layer provides corrosion resistance without surface treatment, stable across the full coil length and through all temper conditions.
Moderate Strengthening from Fe+Si Content
Small Fe+Si additions provide marginally improved mechanical strength and work-hardening response compared to higher-purity 1xxx grades, without alloy additions that would degrade conductivity.
Industrial Applications
Al 1050 Aluminum Coil is used in continuous and roll-to-roll processing across energy storage, electronics, HVAC, and industrial manufacturing — where conductivity, formability, and strip geometry consistency across long coil lengths are the primary drivers:
- ✦ Continuous Lamination & Thermal Barrier Laminates
- Consistent strip geometry and corrosion resistance across the full coil length support continuous lamination lines and thermal barrier laminate production where sheet-form supply would introduce batch boundaries incompatible with continuous operation.
- ✦ Cable Shielding Wraps & HVAC Duct Facing
- High-volume throughput, reliable barrier performance, and the formability of 1050 make this grade the standard choice for cable shielding wrap and HVAC duct facing in continuous processing environments.
- ✦ Transformer Winding & Capacitor Electrode Slitting
- Conductivity of ~57–59% IACS and dimensional consistency across a coil reduce ohmic losses in transformer windings and capacitance variation across a batch of capacitor electrodes produced by continuous slitting.
- ✦ Roll-to-Roll Anodization
- 1050's surface quality and anodization response support roll-to-roll anodization for architectural and functional oxide coatings where standard industrial finish quality is required across extended coil lengths.
- ✦ Thermomechanical Processing & Conductivity Research
- Al 1050 is a widely used reference alloy for studying the effects of cold rolling and annealing on electrical conductivity in the 1xxx series, where its well-characterized composition provides a reproducible experimental baseline.
Material Properties
| Element | Value |
|---|---|
| Atomic number | 13 |
| Crystal structure | Face centred cubic |
| Electronic structure | Ne 3s² 3p¹ |
| Valences shown | 3 |
| Atomic weight( amu ) | 26.98154 |
| Thermal neutron absorption cross-section( Barns ) | 0.232 |
| Photo-electric work function( eV ) | 4.2 |
| Atomic radius - Goldschmidt( nm ) | 0.143 |
| Ionisation potential( No./eV ) | 4/ 120 |
| Ionisation potential( No./eV ) | 5/ 154 |
| Ionisation potential( No./eV ) | 6/ 190 |
| Ionisation potential( No./eV ) | 1/ 5.99 |
| Ionisation potential( No./eV ) | 3/ 28.4 |
| Ionisation potential( No./eV ) | 2/ 18.8 |
| Element | Value |
|---|---|
| Material condition | Soft |
| Material condition | Hard |
| Poisson's ratio | 0.345 |
| Poisson's ratio | 0.345 |
| Bulk modulus( GPa ) | 75.2 |
| Bulk modulus( GPa ) | 75.2 |
| Tensile modulus( GPa ) | 70.6 |
| Tensile modulus( GPa ) | 70.6 |
| Hardness - Vickers( kgf mm⁻² ) | 21 |
| Hardness - Vickers( kgf mm⁻² ) | 35-48 |
| Tensile strength( MPa ) | 130-195 |
| Tensile strength( MPa ) | 50-90 |
| Yield strength( MPa ) | 110-170 |
| Yield strength( MPa ) | 10‑35 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 2.67@20°C |
| Superconductivity critical temperature( K ) | 1.175 |
| Temperature coefficient( K⁻¹ ) | 0.0045@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 0.42 |
| Element | Value |
|---|---|
| Boiling point( C ) | 2467 |
| Density( gcm⁻³ ) | 2.7@20°C |
| Element | Value |
|---|---|
| Melting point( C ) | 660.4 |
| Latent heat of evaporation( J g⁻¹ ) | 10800 |
| Latent heat of fusion( J g⁻¹ ) | 388 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 900@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 237@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 23.5@0-100°C |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Coil Width | <100mm | ±1mm |
| Coil Width | >=100mm | +2% / -1% |
| Length | +10% / -0% |