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High-Strength Aerospace Aluminum · 7075
7075-T651 Aluminum CNC Machining
High-strength aluminum-zinc-magnesium-copper alloy — the aerospace primary structural workhorse. Nearly 2x the yield strength of 6061 with the same machinability, at the cost of weldability and corrosion resistance.
7075-T651 Aluminum at a glance
| UNS designation | A97075 |
| Yield strength (T651) | ~73 ksi |
| Tensile strength (T651) | ~83 ksi |
| Density | 0.102 lb/in³ (2.81 g/cc) |
| Machinability rating | Excellent |
| Weldability | Poor (not typically welded) |
Conditions we routinely machine:
T6 (aged)T651 (stress-relieved plate — most common)T7351 (over-aged for SCC resistance)
Where we machine 7075-T651 Aluminum
Capabilities
Industries served
Typical 7075-T651 Aluminum parts
- Aerospace primary structural brackets
- Airframe fittings
- Defense structural hardware
- Aircraft ground support equipment
- High-strength precision plates
Related guides
Frequently asked questions
Why 7075-T651 for plate work?
T651 stress-relieved plate has reduced residual stress after machining — critical for aerospace parts where stress-relief distortion would move features out of tolerance. Standard aerospace plate spec.
Do you machine large 7075 plates?
Yes — up to the YCM TV-188 B envelope (74" × 39" × 30"). Common for aerospace primary structural brackets.