Material datasheet · Aluminum (Mg-Si)
Aluminum 6061-T6
UNS A96061 · T6 — solution heat treated and artificially aged
The general-purpose aluminum. Easy to machine, weld, and anodize; heat-treatable.
Chemical composition
Nominal % by weight.
| Element | % by wt |
|---|---|
| Al | Bal. |
| Mg | 0.8–1.2 |
| Si | 0.4–0.8 |
| Cu | 0.15–0.40 |
| Cr | 0.04–0.35 |
| Fe | ≤0.7 |
Applicable specifications
AMS / ASTM / MIL.
- AMS 4027 (plate)
- AMS 4117 (bar)
- ASTM B221
- QQ-A-200/8
- QQ-A-225/8
Solution at 980°F, water quench, age 320°F × 18 hr (or 350°F × 8 hr).
Machining guidance
CNC parameters and tooling.
Polished carbide, 35° helix end mills; PCD for high-volume
BUE risk — keep chips evacuated and use sharp positive-rake geometry.
Stock & cost
Forms and Q1 2026 pricing.
- Type II anodize (clear/color)
- Type III hardcoat
- Chemical conversion (MIL-DTL-5541)
- Powder coat
Typical applications
Where 6061-T6 is the right pick.
- Aerospace structures
- Drone airframes
- Optical mounts
- Robotics chassis
- General machinery
Alternative materials
Substitute or upgrade options.
- 6063 (extrusion)
- 5052 (sheet bending)
- 7075 (high strength)
Digital Machine · Quick-Turn CNC · California
Machine your part in 6061-T6.
Production CNC milling and turning. Confirm material, inspection and documentation requirements when requesting a quote.
Keep exploring
Related tools & references
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Estimate part weight from 6061-T6 stock.
How it stacks up against its alternatives.
Aerospace specs that call out this alloy.