Aluminium Alloy 7075 Bolting Products
Aluminium Alloy 7075 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 7075 lists Aluminium (Al): Remainder; Zinc (Zn): 5.1 – 6.1%; Magnesium (Mg): 2.1 – 2.9%; Copper (Cu): 1.2 – 2.0%. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for Aluminium Alloy 7075 lists Tensile Strength: 470 – 570 MPa; Yield Strength: 390 – 505 MPa; Elongation: 5 – 12 %; Hardness: Approx. 130 – 150 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 7075: 3.4365. 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 7075.
The reference chemistry table lists Aluminium (Al): Remainder; Zinc (Zn): 5.1 – 6.1%; Magnesium (Mg): 2.1 – 2.9%; Copper (Cu): 1.2 – 2.0%. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Aluminium | Al | Remainder |
| Zinc | Zn | 5.1 – 6.1% |
| Magnesium | Mg | 2.1 – 2.9% |
| Copper | Cu | 1.2 – 2.0% |
| Chromium | Cr | 0.18 – 0.28% |
| Iron | Fe | 0.50% Max |
| Silicon | Si | 0.40% Max |
| Manganese | Mn | 0.30% Max |
| Other Elements | — | Limited according to applicable specification |
The table reports Tensile Strength: 470 – 570 MPa; Yield Strength: 390 – 505 MPa; Elongation: 5 – 12 %; Hardness: Approx. 130 – 150 HB as reference data for Aluminium Alloy 7075. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 470 – 570 | MPa |
| Yield Strength | 390 – 505 | MPa |
| Elongation | 5 – 12 | % |
| Hardness | Approx. 130 – 150 | HB |
Aluminium Alloy 7075 is a high-strength heat-treatable aluminium-zinc-magnesium-copper alloy widely used for aerospace and other demanding lightweight structures.
One of the most widely recognized high-strength aluminium alloys.
Provides an excellent strength-to-weight ratio.
Commonly machined into aerospace and engineering parts.
Corrosion behavior requires more attention than in common 5xxx and 6xxx alloys.
Aluminium Alloy 7075 is selected for applications that match its specific strength, corrosion, forming, machining and service characteristics.
Used for aircraft fittings, frames and highly loaded components.
Used for selected aerospace and high-strength hardware.
Suitable for lightweight tooling and dies where strength and machinability are required.
Applied to sporting and engineering components where high strength-to-weight is important.
T6, T73, T76 and other tempers have different strength and corrosion-performance trade-offs.
Surface treatment, cladding or coating may be needed for severe environments.
Fusion welding is generally less favored because heat-affected-zone strength can be substantially reduced.
The commonly listed Werkstoff / EN cross-reference for Aluminium Alloy 7075 is 3.4365. 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.
Yes. It is a precipitation-hardening aluminium alloy.
It offers useful corrosion resistance but generally requires more environmental protection than 5xxx or many 6xxx alloys.
Typical uses include aerospace fittings and structures, high-strength hardware, tooling and performance components.
Our engineering team can help you select suitable materials based on operating temperature, pressure and service conditions.