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Aluminium 6063-T6 is a lightweight alloy with a natural silver-white appearance. It combines moderate strength, good corrosion resistance and excellent suitability for anodising, making it useful for frames, housings, brackets and display components.
The T6 temper means the material has been solution heat-treated and artificially aged. It provides higher strength than 6063-T5 while retaining the alloy’s suitability for architectural profiles and heat-dissipating components.
Custom parts are produced using CNC milling or turning. As-machined surfaces retain fine tooling marks, while anodising can be specified where available to improve surface protection and appearance.
Material
Aluminium 6063-T6
Description
Strengths
Lightweight, corrosion-resistant and suitable for anodising. Good thermal conductivity and higher strength than 6063-T5.
Weaknesses
Lower strength and machinability than 6061-T6. Loaded threads require careful design. Welding and elevated temperatures can reduce strength
Silver white
Ultimate tensile strength
215–240 MPa
Yield strength
170–210 MPa
Modulus of elasticity
68–69 GPa
Elongation at break
8–11%
Density
2.70 g/cm³
Hardness
Not specified
Corrosion resistance
High
Magnetism
Non-magnetic
UK equivalent
HE9
Maximum service temperature
160°C
Thermal expansion coefficient
23.0–23.5 × 10⁻⁶ /°C
Thermal conductivity
200–201 W/(m·°C)
Electrical resistivity
3.25 μΩ·cm
Anodising
Suitable
Weldability
High
Architectural & building parts
Heat sinks
Transport trim & profiles
Display & enclosure frames
Values shown are typical supplier figures for Aluminium 6063 and may vary with stock condition. Please confirm critical properties before production.
6063 machines well but is softer and less free-cutting than 6061, so it is best for parts where finish and corrosion resistance matter more than strength. Loaded threads need careful design.
6063 suits enclosures, frames and profile-based parts; thin sections may need extra care because the alloy is softer. Achievable tolerances depend on part size, geometry and features, so mark any critical tolerances on a 2D drawing with your upload and they will be reviewed and confirmed in your quote.
Yes. 6063 is one of the best aluminium alloys for anodising, giving an even, attractive finish. That is why it is widely used for architectural and display parts.
Typical uses include architectural and building parts, heat sinks, transport trim and profiles, and display and enclosure frames.
Choose 6063 (HE9) when surface finish, anodising quality and thermal conductivity are the priority. Choose 6061 or 6082 when the part needs higher strength or carries loads. 6063-T5 is a lower-strength temper of the same alloy.
The typical lead time shown for aluminium 6063 is 10 business days from an approved order. Quantity, finishing and any heat treatment can affect this, and your quote confirms the date before you order.
Parts in as fast as 10 business days
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