2017 Aluminum Balls

2017 Aluminum Balls are high-strength, copper-containing aluminum alloy spheres, engineered for mechanical durability, corrosion resistance, and excellent performance under load-bearing conditions. Their composition provides superior hardness and wear resistance while maintaining a favorable strength-to-weight ratio. These balls are widely used in aerospace, petrochemical, and mechanical engineering sectors for applications requiring precision, lightweight design, and resistance to environmental degradation. Specific uses include bearing elements in specialized rotary systems, sealing media in fluid control devices, and sacrificial or dissolvable components in temporary high-pressure sealing operations. In research and innovation, 2017 aluminum balls serve as prototypes for advanced ball valve designs, testing platforms for wear resistance in dynamic systems, and custom-engineered kinetic components. Their balance of machinability, mechanical performance, and resistance to environmental stress ensures ongoing relevance in cutting-edge industrial and scientific contexts.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Ball/Sphere

Diameter	Standard	±5%
Diameter	Precision	See Item

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