CNC machining in Aluminum 7075-T651 | Manufacturing Materials

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Aluminum 7075-T651

Material type: Metal, Corrosion resistance, Non-magnetic

Aluminum 7075-T651(CNC) is an aerospace-grade material with excellent strength-to-weight ratio and strength and hardness comparable to steels. T651 is the temper of Aluminum 7075, and to achieve this temper, the alloy is solution heat-treated, stress relieved, and then artificially aged.

Process compatibility

CNC Milling CNC Turning

Material Color

Silver white

Material advantages

It possesses excellent mechanical properties, along with high strength, high toughness and good ductility. An ideal choice for the aerospace, automotive and aircraft industries

Material shortcomings

Poor corrosion resistance, extremely poor weldability, and limited formability

Recommended description

7075-T651 features the outstanding strength and hardness of aluminum alloy. After pre-stretching to remove residual stress, the thick plates undergo precise CNC processing, ensuring stable dimensions. It is suitable for large-scale precision structural components and tooling fixtures with high precision and high load capacity in dry working conditions.

Properties

Name
Ultimate tensile strength	540~570 MPa
Yield strength	470~500 MPa
Young's modulus (modulus of elasticity)	71~72 GPa
Elongation at break	8%~11%
Corrosion resistance	Low
Magnetism	Non-magnetic
Weldability	Low
Maximum service temperature	200 °C
Thermal expansion coefficent	23.6 × 10⁻⁶ /°C
Thermal conductivity	130 W/(m⋅°C)
Electrical resistivity	5.15 μΩ·cm
Post-Processing	NA
Anodizing compatibility	Suitable