Aluminum Alloy

6061 Aluminum Alloy

Heat-treatable Al-Mg-Si alloy widely used in aerospace, automotive, and structural extrusions.

Composition

Element	Range
Al	Balance
Mg	0.8–1.2%
Si	0.4–0.8%
Cu	0.15–0.4%
Cr	0.04–0.35%

XRF Notes

Portable XRF identifies Mg and Si levels to differentiate 6061 from 7075 and other Al alloys.

ASTM B209AA 6061GB/T 3190

Properties

• Good weldability
• Medium strength
• Excellent corrosion resistance

Applications

• Aircraft structures
• Bicycle frames
• Marine fittings

Related Applications

Alloy & PMI

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