Aluminium Alloy 2011 Bolting Products
Aluminium Alloy 2011 is listed in the ALUMINIUM ALLOY material family. The reference data below should be checked against the governing product specification, product form and delivery condition before selection or certification.
The reference chemistry table for Aluminium Alloy 2011 lists Aluminium (Al): Remainder; Copper (Cu): 5.0 – 6.0%; Bismuth (Bi): 0.2 – 0.6%; Lead (Pb): 0.2 – 0.6%. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for Aluminium Alloy 2011 lists Tensile Strength: 275 – 380 MPa; Yield Strength: 120 – 275 MPa; Elongation: 10 – 18 %; Hardness: Approx. 80 – 115 HB. These are reference entries; supplied condition, dimensions, test method and governing specification control the requirements, and the figures are not design allowables.
Werkstoff / EN cross-reference for Aluminium Alloy 2011: 3.1655. This comparison does not guarantee interchangeability; confirm chemistry, product form and condition against the governing specification.
View Technical Information →Standard identification and material designation information for Aluminium Alloy 2011.
The reference chemistry table lists Aluminium (Al): Remainder; Copper (Cu): 5.0 – 6.0%; Bismuth (Bi): 0.2 – 0.6%; Lead (Pb): 0.2 – 0.6%. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Aluminium | Al | Remainder |
| Copper | Cu | 5.0 – 6.0% |
| Bismuth | Bi | 0.2 – 0.6% |
| Lead | Pb | 0.2 – 0.6% |
| Iron | Fe | 0.7% Max |
| Silicon | Si | 0.4% Max |
| Zinc | Zn | 0.3% Max |
| Other Elements | — | Limited according to applicable specification |
The table reports Tensile Strength: 275 – 380 MPa; Yield Strength: 120 – 275 MPa; Elongation: 10 – 18 %; Hardness: Approx. 80 – 115 HB as reference data for Aluminium Alloy 2011. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 275 – 380 | MPa |
| Yield Strength | 120 – 275 | MPa |
| Elongation | 10 – 18 | % |
| Hardness | Approx. 80 – 115 | HB |
Aluminium Alloy 2011 is a free-machining aluminium-copper alloy developed for high-speed machining and good chip-breaking performance.
Designed for high-speed machining and good chip formation.
The copper content provides higher strength than commercially pure aluminium grades.
Suitable cutting conditions can produce good machined surface finishes.
Machined components are common; welding suitability is lower than in many 5xxx and 6xxx grades.
Aluminium Alloy 2011 is selected for applications that match its specific strength, corrosion, forming, machining and service characteristics.
Commonly used for precision turned and machined parts.
Suitable for small precision components such as fittings and hardware.
Used for selected machined automotive and electrical parts.
Suitable for high-volume machining of non-welded components.
2011 is selected primarily for machining productivity rather than maximum corrosion resistance.
Corrosion performance is lower than many common 5xxx and 6xxx alloys; protective treatment may be required.
Evaluate the selected joining method carefully because this alloy is not primarily designed for welding.
The commonly listed Werkstoff / EN cross-reference for Aluminium Alloy 2011 is 3.1655. Treat this as a grade comparison, not a guarantee of interchangeability. Verify chemistry, product form, condition and governing specification against the supplier certificate before substitution.
2011 is generally used in work-hardened tempers rather than as a conventional precipitation-hardening structural alloy.
It offers moderate corrosion resistance, but generally less than 5xxx and 6xxx aluminium alloys.
Typical uses include precision-turned parts, fittings, fasteners and other high-volume machined components.
Our engineering team can help you select suitable materials based on operating temperature, pressure and service conditions.