Aluminium extrusion billets
Discuss aluminium extrusion billet requirements for extruders and fabricators. Define the alloy, billet diameter, cut length, homogenisation and inspection requirements, so that the specification matches your press and finished product.
- 6063 reference composition shown.
- 6061 and other alloys confirmed per enquiry.
- Diameter, length and homogenisation specified per order.
Choose the alloy
Billets are specified by alloy designation and the standard it must meet.
6063
Architectural and general extrusion alloy. Its reference composition is shown in the table below.
6061
Structural alloy with higher strength. Its composition limits are confirmed against the requested standard for each enquiry.
Other alloys
Specify the alloy designation and the standard it must meet.
Selected 6063 reference composition
| Element | Limit type | 6063 reference requirement (% by mass) |
|---|---|---|
| Silicon (Si) | Range | 0.20–0.6% |
| Iron (Fe) | Maximum | Maximum 0.35% |
| Copper (Cu) | Maximum | Maximum 0.10% |
| Manganese (Mn) | Maximum | Maximum 0.10% |
| Magnesium (Mg) | Range | 0.45–0.9% |
| Chromium (Cr) | Maximum | Maximum 0.10% |
| Zinc (Zn) | Maximum | Maximum 0.10% |
| Titanium (Ti) | Maximum | Maximum 0.10% |
| Other elements, each | Maximum | Maximum 0.05% |
| Other elements, total | Maximum | Maximum 0.15% |
| Aluminium (Al) | Balance | Remainder |
Billet dimensions, homogenisation, and mechanical or ultrasonic testing requirements are agreed for each order.
What to include in a billet enquiry
Include the following:
- Alloy and standard, for example 6063 to EN 573-3.
- Billet diameter and cut length, or log length.
- Homogenisation requirement.
- Inspection and testing requirements, such as ultrasonic testing.
- Quantity in metric tonnes, destination and delivery schedule.
Specifications shown are selected reference parameters for initial enquiries. Product availability, the complete agreed specification, origin, quantity, delivery terms, and applicable quality documentation are confirmed for each transaction. This information is not a Certificate of Analysis or confirmation of available stock.
Abbreviations
- AA
- The Aluminum Association — registers international alloy designations such as 6063 and 6061 and their chemical composition limits.
- COA
- Certificate of Analysis — laboratory results for a specific shipment or batch.
Technical references
- 6063 — chemical composition limits as registered by the Aluminum Association (International Alloy Designations) and published in EN 573-3.
Sources are cited for technical reference only. They do not indicate any commercial relationship between the organisations named and Friend’s Oil Company L.L.C.
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