Overview
7075 aluminum plate is a high-strength Al-Zn-Mg-Cu alloy, one of the strongest commercial aluminum alloys available. Primarily used in aerospace, military, and high-stress applications. T651 temper offers stress-relieved properties with excellent dimensional stability and machinability.
Description (English)
7075 aluminum plate supplier. AA7075 T651/T6 aerospace-grade aluminum sheet. High strength, excellent machinability. Thickness 1-200mm. EN 485, ASTM B209. Get a quote. FAQ Q:Difference between 7075-T6 and T651? A:T651 is stress-relieved by stretching after solution heat treatment, providing better dimensional stability. T6 has no stress relief, prone to warping during machining. Q: Can 7075 be welded? A: Not recommended. Prone to hot cracking and stress corrosion. Use mechanical fastening or adhesive bonding. If welding is required, use 2319 or 4043 filler wire.
Size Range
- Thickness 1-200mm, width up to 2,500mm, length up to 6,000mm. Custom cutting on request.
Grade Specification
| System | Value |
|---|---|
| Grade | AA 7075 / EN AW-7075 |
| Alloy Type | Al-Zn-Mg-Cu |
| Temper | T6, T651, T7351 |
| US | ASTM B209 |
| 🇪🇺 EN | EN 485-2 |
| GB | GB/T 3880 |
| Surface | Mill finish, anodized, polished |
| Packaging | Wooden pallet, PE film, kraft paper |
| MOQ | 1 pc |
| Lead Time | 2-3 days |
Chemical Composition
| Element | Value |
|---|---|
| Zn | 5.1–6.1 |
| Mg | 2.1–2.9 |
| Cu | 1.2–2.0 |
| Fe | ≤0.50 |
| Si | ≤0.40 |
| Mn | ≤0.30 |
| Cr | 0.18–0.28 |
| Ti | ≤0.20 |
| Other (each) | ≤0.05 |
| Other (total) | ≤0.15 |
| Al | Remainder |
Mechanical Properties
| productCenter.property | Value |
|---|---|
| Tensile Strength | ≥572 MPa |
| Yield Strength | ≥503 MPa |
| Elongation | ≥7% |
| Brinell Hardness | 150 HB |
| Shear Strength | 330 MPa |
| Fatigue Strength | 160 MPa |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | g/cm³ | 2.81 g/cm³ |
| Elastic Modulus | GPa | 71.7 GPa |
| Shear Modulus | - | 26.9 GPa |
| Poisson's Ratio | - | 0.33 |
| Thermal Conductivity | W/m·K | 130 W/(m·K) |
| Electrical Conductivity | - | 33% IACS |
| Thermal Expansion | ×10⁻⁶/K | 23.6 × 10⁻⁶ /K |
| Melting Range | °C | 477–635°C |
| Specific Heat | J/kg·K | 960 J/(kg·K) |
Applications
- Aerospace (aircraft frames, wing spars, fuselage structures
- military (armor plates, weapon components)
- automotive (racing parts, gear housings)
- tooling (mold plates, jigs, fixtures)
- sporting goods (bicycle frames, climbing gear, RC parts)