Aluminum 7075 Alloy Powder (AA7075, 15–53 µm, Spherical)

Description

Aluminum 7075 Alloy Powder (AA7075, 15–53 µm, Spherical)

Aluminum 7075 Alloy Powder (AA7075) is a high-strength aluminum alloy powder with a particle size range of 15–53 µm and spherical morphology, optimized for aerospace, defense, and high-performance engineering applications. This alloy, primarily composed of Al–Zn–Mg–Cu, is widely recognized for its excellent strength-to-weight ratio, fatigue resistance, and mechanical performance.

With a density of 2.81 g/cm³, tensile strength of 572 MPa, and Vickers hardness of 175 HV, 7075 aluminum alloy provides superior mechanical stability while maintaining good machinability and reasonable corrosion resistance. These characteristics make it one of the most popular aluminum alloys in industries demanding lightweight yet durable materials.

Technical Properties

General Properties

• Chemical Composition (wt%):

  • Zn: 5.46

  • Mg: 2.75

  • Cu: 1.57

  • Cr: 0.24

  • Si: 0.17

  • Fe: 0.12

  • Ti: 0.01

  • Ni: 0.01

  • Mn: <0.01

  • Al: Balance

• Purity: 99+%

• Particle Size Distribution:

  • D10: 15.3 µm

  • D50: 27.6 µm

  • D90: 47.7 µm

• Morphology: Spherical

• Appearance: Dark gray metallic powder

Physical & Mechanical Properties

• Density: 2.81 g/cm³

• Melting Point: 477–635 °C

• Boiling Point: ~2467 °C

• Thermal Conductivity: 130 W/m·K

• Thermal Expansion: 25.2 µm/m·°C

• Specific Heat: 0.96 J/g·°C

• Poisson’s Ratio: 0.33

• Tensile Strength (UTS): 572 MPa

• Vickers Hardness: 175 HV

Applications

Aerospace & Defense

• Extensively used in aircraft fuselages, wings, structural parts, and defense components where lightweight and fatigue resistance are crucial.

Automotive & Motorsport

• Applied in chassis parts, racing components, and high-performance structural applications to reduce weight while retaining strength.

3D Printing & Additive Manufacturing

• Spherical morphology and narrow particle size distribution make it suitable for powder-bed fusion and other AM techniques.

Engineering & Industrial Uses

• Utilized in marine structures, sports equipment, robotics, and tooling components demanding strength and corrosion balance.

Research & Material Science

• Studied as a feedstock material for advanced composite systems and next-generation lightweight alloys.