Aluminum Disk

Aluminum Disk refers to a general class of round aluminum components manufactured from materials with aluminum content ranging from 99.0% to ultra-high-purity 99.9999%. These disks exhibit excellent corrosion resistance, high reflectivity, good thermal and electrical conductivity, and exceptional formability. Their mechanical properties vary depending on purity and temper, making them suitable for a broad range of industrial and research applications. Common use sectors include electronics, lighting, architecture, and materials science. Specific uses include sputtering targets, high-purity reflector substrates, chemical-resistant covers, and standardized coupons for corrosion and thermal testing. In research, aluminum disks serve as reference materials for studying recrystallization, cryogenic deformation, and alloy response modeling. Their purity spectrum supports work in high-precision optics, energy systems, and advanced manufacturing. The Aluminum Disk's scientific and industrial value lies in its adaptability across environments demanding chemical inertness, purity control, and consistent thermal response.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Disc

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

Material Properties for Metals

Atomic 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 )	6/ 190
Ionisation potential( No./eV )	2/ 18.8
Ionisation potential( No./eV )	1/ 5.99
Ionisation potential( No./eV )	3/ 28.4
Ionisation potential( No./eV )	5/ 154
Ionisation potential( No./eV )	4/ 120

Mechanical Properties

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 )	50-90
Tensile strength( MPa )	130-195
Yield strength( MPa )	Oct-35
Yield strength( MPa )	110-170

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	2.67@20@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

Physical Properties

Element	Value
Boiling point( C )	2467
Density( gcm⁻³ )	2.7@20°C

Thermal Properties

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