Metals & alloys · Aluminium alloys
Al–4Cu reference
A binary aluminium–copper reference composition used to study age-hardening phase evolution, solidification and the Al-rich side of the Al–Cu system.
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01
Overview
- Material class
- Metals & alloys
- Category
- Aluminium alloys
- Family
- Aluminium Alloy
- Product forms
- Sheet/plate, Bar/rod, Casting
Composition
| Constituent | Min | Max | Typical | Note |
|---|---|---|---|---|
| Cu | 4 | |||
| Al | Balance |
02
Properties and conditions
Engineering properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Density | ~2.78 | g/cm³ | composition estimate |
| Elastic modulus | ~72 | GPa | composition estimate |
| Liquidus | ~640 | °C | approximate; model dependent |
| Strength | condition dependent | solution treatment and aging required | |
| Primary strengthening | θ′/θ family | processing dependent |
Conditions
Representative supplied condition
Condition not fully specified in the source record.
03
Processing and use
Processing
- Solution treatment, quench and aging determine precipitate sequence and strength.
- Binary reference excludes common commercial additions and impurity controls.
Applications
- Precipitation studies
- Binary phase-diagram exploration
- Solidification teaching
Selection considerations
- Use a commercial 2xxx specification for engineering procurement.
- Useful for isolating copper-driven phase behavior.
Open in an analysis tool
04
Standards and related materials
Standards and designations
| System | Designation | Note |
|---|---|---|
| MATAMET | Al–4Cu reference | Research composition; not a procurement grade |
05
Sources and context
Sources
- IMMES Simulation Lab reference compositionExisting reference
- ASM International and public alloy designation referencesIdentity reference
Confirm the applicable specification, product form and condition before using values for design or procurement.
Supply and sustainability
Prepared primarily as laboratory or model material rather than a standard stocked grade.
Useful for alloy-development screening; commercial 2xxx recycling requires chemistry segregation.
Strategic context
Established engineering material with documented processing–performance relationships.