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- About Us
1050 Aluminum Disk
Available Configurations
Properties common to all products in this list
| Thickness | Diameter | Temper ⓘ | Other Variant |
|---|---|---|---|
| 0.05 mm to 0.3 mm | 4 mm to 60 mm | Annealed Hard |
High-Purity Ultra-High-Purity Al 1070 Al 1199 Al 1200 |
Need custom configurations? Please contact us.
Surface Analysis & Materials Testing
We offer access to a full suite of surface analytical and corrosion testing methods through Suisse Technology Partners AG, Goodfellow's own ISO 17025 accredited laboratory specializing in aluminum surfaces. The methods below are available as standalone testing services or as part of a broader materials characterization program.
Key Features
Al 1050 Aluminum Disk is a commercially pure 1xxx series disk with a minimum aluminum content of 99.5%, offering a defined planar geometry with consistent surface area and thickness for electrochemical, corrosion, and surface science applications:
Electrical & Thermal Conductivity (~57–59% IACS, ~218 W/m·K)
Electrical conductivity of ~57–59% IACS and thermal conductivity of ~218 W/m·K — among the highest available in a commercial-grade aluminum disk — maintained by the low total Fe+Si content that minimises solid-solution electron scattering.
Defined Planar Geometry & Consistent Surface Area
The disk format provides a fixed circular geometry with a planar face and controlled thickness, enabling coupon-to-coupon reproducibility in surface analysis, electrochemical testing, and corrosion studies where sample geometry is an experimental variable.
Naturally Passivating Oxide Layer
The self-limiting Al₂O₃ layer provides a chemically reproducible starting surface for electrochemical measurement and anodization without pre-treatment — consistent across a batch of disks from the same material lot.
High Ductility & Machinability
High ductility supports precision stamping and machining to close dimensional tolerances, enabling custom disk dimensions for non-standard sample holders and electrochemical cell configurations.
Moderate Strength from Fe+Si Content
Small Fe+Si additions relative to higher-purity grades provide marginally improved mechanical strength and work-hardening response, reducing deformation during coupon preparation and handling.
Industrial Applications
Al 1050 Aluminum Disk is used across electrochemistry, corrosion science, surface analysis, and materials research — where the defined disk geometry and consistent 99.5% Al composition provide a reproducible commercial-purity sample platform:
- ✦ Electrochemical Working Electrodes
- Defined surface area enables accurate current density calculation in corrosion studies, anodization kinetics, and inhibitor performance measurements — where coupon-to-coupon geometry consistency is essential for comparable results across a test series.
- ✦ Corrosion Test Coupons
- Used in salt-spray, immersion, and cyclic corrosion testing where alloy composition and disk geometry must be consistent across a test series for statistically comparable results.
- ✦ Anodization Blanks for Functional & Decorative Oxide Coatings
- 1050's surface uniformity and anodization response support standard industrial oxide finishes where batch consistency across a set of disks is required and high-purity grades are not economically justified.
- ✦ Thermal Diffusivity Specimens
- The disk geometry and known alloy specification support direct comparison of thermal properties across conditions in thermal diffusivity and heat capacity measurement studies.
- ✦ Recrystallization & Microstructural Research
- Used as a standard benchmark for 1xxx series microstructural studies examining the effects of cold deformation, annealing, and recrystallization on grain structure and mechanical properties.
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% |
| Diameter | ±0.5mm |