Aluminum
Aluminium 2011
2011 is a copper-bearing free-machining wrought aluminium grade.
Identity / state reference
What distinguishes this material
T3 and T8 have separate data; the source rates anodizing and resistance welding differently from other welding methods.
- Designation in this reference
- 2011
- Forms covered by the sources
- Rod
- Bar
- States to distinguish or confirm
- T3
- T8
- 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.
Kaiser Aluminum — Alloy 2011 Hard Alloy Rod and Bar Technical Data ↗
Resolve these conditions next
- Does the certificate specify T3 or T8, and what composition/compliance limits does this order require?
- 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.
Kaiser Aluminum — Alloy 2011 Hard Alloy Rod and Bar Technical Data
Rod and bar; T3 and T8; composition and relative fabrication ratings. Historical RoHS statement is not current compliance certification.
Kaiser Aluminum — Alloy 2011 Hard Alloy Rod and Bar Technical Data ↗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
- Replace 'cannot be welded or anodised usefully' with method-specific source scope; do not reuse the sheet's historical RoHS claim as current compliance.
- Remove the untraceable generic machining recommendation (400 %) and cutting-speed ranges; select machining data by actual material condition, tool and operation.
- The old Pb range ends at 0.60%; the reviewed Kaiser product sheet gives 0.40% maximum after its stated 2009 change. Do not mix editions or assume current compliance without a certificate.
Other 2xxx aluminum designations
Compare the alloy identity and the stated temper or condition. Do not generalize one product example across this series.