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Grade: 1199
Formula: Al
Form: Coil
Material: Aluminum
CAS Number: 7429-90-5
Commodity: Metals
Purity: 99.99%
Temper: Half Hard
Thickness: 0.05mm
Coil Width: 0.1mm
1199 Aluminum Coil (Roll), composed of 99.99% pure aluminum, provides high electrical conductivity and excellent corrosion resistance, making it ideal for precision electrical and thermal applications. Its half hard temper ensures a balance of moderate strength and formability, supporting capacitor foil production, vacuum system linings, and cryogenic containment. In laboratory and research contexts, this foil is used for semiconductor shielding, cleanroom integration, and thin-film deposition. The coil’s uniform grain structure and low impurity profile make it well-suited for microelectronics, spectroscopy platforms, and electromagnetic calibration devices requiring high purity and consistent surface quality.
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Tolerances

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

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

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