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Aluminum

6005A-T6

6005A-T6 is an extrusion-optimized structural aluminum offering a strong balance of strength, extrudability, and the highest thermal conductivity in this group at 180 W/mK. With 270 MPa tensile and 225 MPa yield at 2.7 g/cm3, it is designed for thin-wall and complex structural profiles where 6063 lacks strength and 6082 is harder to extrude into intricate sections.

How 6005A-T6 machines

6005A machines well at 4.0/5, cutting cleanly with sharp tools and behaving like other 6000-series structural alloys. It holds tolerances and anodizes cleanly. Most parts begin as extruded profiles, so machining is typically secondary, cutting features into sections; expect predictable, fast, well-controlled chip formation on the machined operations.

Manufacturing & processing

6005A is built for extrusion, flowing readily into thin-wall and complex structural profiles that combine good strength with intricate geometry. It is CNC machined for added features and welds with the usual heat-affected-zone softening of heat-treatable alloys. It anodizes cleanly, suiting visible transport and architectural extrusions needing both strength and finish.

Typical applications

6005A is used for structural extrusions in transport, rail, and architecture, including thin-wall profiles, frames, ladders, and platforms. Its high extrudability and strength suit complex load-bearing sections, while its high thermal conductivity also benefits extruded heat sinks and profiles that must dissipate heat.

When to choose it

Choose 6005A for strong, complex, thin-wall structural extrusions that exceed 6063's strength yet need better extrudability than 6082 in intricate sections. For simpler high-strength structural parts, 6082 or 6061 suffice; for purely architectural low-load profiles, 6063 is cheaper. 6005A wins for strength plus extrudability in demanding profiles.

Suitable surface finishes

Common finishes for 6005A-T6: Type II anodizing, chromate/Alodine, powder coating, bead blasting. Use the finish selector →

FAQ

When is 6005A better than 6063 or 6082?
6005A bridges them. It is stronger than 6063, which suits low-load architectural shapes, and extrudes into thinner, more complex profiles than 6082 while keeping good strength. Choose 6005A when a structural profile needs both meaningful load capacity and intricate, thin-wall extruded geometry.
Is 6005A good for heat sinks?
Yes. With 180 W/mK thermal conductivity, the highest of the structural grades here, and excellent extrudability for fine fins, 6005A makes capable extruded heat sinks. It combines heat dissipation with enough strength to serve as a structural and thermal profile in one extruded section.
Does 6005A weld and anodize like 6082?
Largely yes. As a heat-treatable 6000-series alloy it welds with heat-affected-zone softening, so post-weld strength drops locally. It anodizes cleanly for corrosion protection and appearance. Its behavior mirrors 6082 and 6061 in welding and finishing, differing mainly in its extrusion-optimized composition.

Property values are typical/nominal for early guidance and vary by temper, grade, supplier and heat treatment. Confirm critical specs against a certified datasheet or with an mfgiq engineer.