6061 Aluminum Shafts

The all-purpose aluminum, about a third the weight of steel, with good machinability and corrosion resistance.

At a glance

Supplied condition	T6 temper
Machinability	Very good
Weldability	Weldable (local loss of T6 strength at the weld)
Corrosion resistance	Good, protects itself; anodize for more
Hardening	Supplied at full T6 temper
Density (nominal)	0.098 lb/in³, about a third of steel
Food contact	Generally acceptable (often anodized)
Magnetic	No

6061 in T6 temper is the default engineering aluminum: structural strength, natural corrosion resistance, clean machining, and it anodizes beautifully. At roughly a third the density of steel it is the first stop whenever shaft weight or inertia matters, robotics, spinning fixtures, and anything hand-carried.

Remember the modulus: aluminum flexes about three times more than steel under the same load, so long unsupported spans deflect more than the steel intuition expects. Size accordingly or keep spans short.

Configure a 6061-T6 part →

Any geometry in the configurator, diameters, threads, keyseats, grooves, holes, tapers, can be machined in 6061-T6. Pick the material in the sidebar and the price updates live.

When to choose 6061-T6

Weight or rotating inertia is a design driver.
Corrosion resistance without stainless machining costs.
The part will be anodized for wear or cosmetics.

Consider instead

7075, when the aluminum part needs near-steel strength.
2011, for high-volume turned parts, machinability first.
303 stainless, when strength and corrosion both outrank weight.

Typical applications

Robotics and automation shafts
Idler rollers and guide shafts
Instrument and camera hardware
Lightweight fixture components

Ready-made starting points in this material's wheelhouse: Thread-mount idler shafts.

Frequently Asked Questions

About 65% lighter, 0.098 lb/in³ versus 0.284 for steel. The same 1" × 12" shaft drops from roughly 2.7 lb to under 1 lb.

For light and moderate torque, yes. T6 temper is a genuine structural material. Watch deflection rather than strength on long spans, and step to 7075 or steel when torque gets serious.

Yes, 6061 anodizes exceptionally well, clear or colored, and hardcoat anodizing adds real wear resistance to journals and sliding surfaces. Anodizing happens after machining.

Supplied as 6061-T6, machined from bar sourced per order. Material and condition are paired. Each grade ships in one condition optimized for our process; see all grades on the materials page.