Aluminum
Aluminium 6063
6063 is an extrusion alloy; the temper suffix is essential.
Identity / state reference
What distinguishes this material
The producer lists architectural and other profiles; welded regions can lose the T6 parent-material strength.
- Designation in this reference
- 6063
- Forms covered by the sources
- Extruded profile
- Tube
- Pipe
- States to distinguish or confirm
- O
- T1
- T4
- T5
- T6
- Temperature and exposure
- No general service-temperature limit or temperature-independent strength is established by this page. Check the temperature and duration for the specific source table and application.
Property evidence for a stated condition
No condition-specific numerical table is reproduced here
The linked sources establish the identity and the stated product/state scope. Obtain the row for your actual form, section, treatment and test conditions before adopting strength, hardness or a thermal limit.
Resolve these conditions next
- Which temper and wall thickness apply, and are the required properties before or after welding?
- Obtain the full material certificate, governing specification/edition, product dimensions and test direction before adopting a property value.
For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.
Sources and what they establish
Reviewed 23 October 2026. A source’s publication date and the review date are different. The scope below identifies the fields checked.
Hydro Alloy 6063
June 2026 North America extrusion sheet; T5/T6 and other conditions; section thickness and welding strength loss.
Hydro Alloy 6063 ↗Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.
Corrections from the previous article
- Remove the claim that 6063 belongs only on trim and frames and the single 240 MPa value.
- Remove the untraceable generic machining recommendation (350 %) and cutting-speed ranges; select machining data by actual material condition, tool and operation.
Other references in Aluminum
Related references, not equivalent substitutes.