7005 7050 7075 Aluminum Sheet Plate
Aluminum alloys 7005, 7050, and 7075 are cornerstones of high-performance applications where strength, durability, and corrosion resistance are essential. Widely used in aerospace, transportation, sports equipment, and high-stress structural components, these aluminum alloys offer different strengths and tempering advantages to fulfill various operational requirements.
These alloys belong primarily to the 7xxx series aluminum family, aluminum-zinc based alloys known for outstanding mechanical properties and excellent toughness combined with relatively good corrosion resistance.
- 7005 Aluminum Plate: Known for good weldability and moderate to high strength. Ideal where reduced weight and weld joining are needed.
- 7050 Aluminum Plate: Offers excellent corrosion resistance, high strength, and good fracture toughness. It’s frequently used in aerospace applications requiring high damage tolerance.
- 7075 Aluminum Plate: Famous for its exceptional strength comparable to some steels paired with high fatigue strength – crucial in aerospace and defense industries.
Functions and Benefits
Each alloy displays tailored benefits depending on processing and heat treatment but shares these broad functional strengths:
- Outstanding strength-to-weight ratio enabling lightweight, high-strength structures beneficial to mobile and flight applications.
- Superior fatigue resistance improving product lifecycle in cyclically loaded environments.
- Good machinability on advanced alloying techniques to form complex engineering parts.
- Reasonable corrosion resistance for challenging environments, especially in 7050 and 7005 alloy conditions.
- Wide available tempering conditions enabling manufacturers to optimize hardness, toughness, and formability.
Common Applications
7005 Aluminum Sheet Plates
Common in bicycle frames, automotive parts, scaffolding, and marine applications where welded construction is preferred.7050 Aluminum Sheet Plates
Extensive use in aircraft component manufacturing, defense armor plating, and missile parts requiring hostile environment durability and fracture resistance.7075 Aluminum Sheet Plates
Predominantly aerospace structural parts, helicopter and airplane fuselage, military vehicles and high-performance sports equipment like climbing gear or bicycle frames.
Chemical Composition (% wt.)
| Alloy | Zn | Mg | Cu | Cr (or Zr) | Fe (max) | Si (max) | Mn (max) | Others | Aluminium (balance) |
|---|---|---|---|---|---|---|---|---|---|
| 7005 | 4.0–5.0 | 1.0–1.7 | 0.1–0.4 | 0.16–0.25 Cr | 0.35 | 0.40 | 0.10 | Ti 0.08, Zn balance | Remainder |
| 7050 | 5.7–6.7 | 2.0–2.6 | 1.2–2.0 | 0.18–0.35 Zr | 0.10 | 0.12 | 0.05 | Fe 0.30 max | Remainder |
| 7075 | 5.1–6.1 | 2.1–2.9 | 1.2–2.0 | 0.18-0.28 Cr | 0.5 max | 0.4 max | 0.3 max | Others ≤0.15 | Remainder |
Mechanical Properties: Tensile Strength (MPa), Yield Strength (MPa), Elongation (%)
| Alloy | Temper | Ultimate Tensile Strength | Yield Strength | Elongation (min) |
|---|---|---|---|---|
| 7005 | T5 | 320-370 | 275-310 | 8 |
| T6 | 380-430 | 300-360 | 6 | |
| 7050 | T7451 | 510-570 | 455-510 | 10 |
| T7651 | 470-525 | 425-475 | 12 | |
| 7075 | T6 | 540-570 | 475-505 | 7 |
| T651 | 560-590 | 505-535 | 7 |
Tempering Conditions
Heat treatment framing the mechanical response of aluminum plates includes aging and solution treatment:
| Temper | Description | Typical Applications |
|---|---|---|
| T5 | Cooled from elevated temperature shaping, naturally aged | Welded products (7005 Alloy) |
| T6 | Solution heat-treated, artificial aging | High strength machining parts (Alloys 7005, 7075) |
| T651 | Solution heat-treated, stress relieved by stretching, aged | Aerospace Structural Components (7075 Aluminum) |
| T7451 | Stress corrosion resistant temper (Solution treated + overaged) | Aerospace components (7050 Alloy) |
| T7651 | Stabilized low residual stresses & corrosion resistance | Aerospace & defense (7050 Alloy) |
Implementation Standards
Most aluminum plate manufacturing follows worldwide accepted standards in terms of compositional and dimensional quality control:
| Standard | Description | Applicable Alloys |
|---|---|---|
| ASTM B209 | Standard Specification for Aluminum and Aluminum-Alloy Sheets and Plates | 7005, 7050, 7075 |
| AMS 4331 & AMS 2475 | Aerospace material specification details on chemical/physical | 7050 and 7075 mostly |
| EN 485, BS EN 573 | European standards for aluminum alloys sheet and plate | 7005, 7050, 7075 |
| JIS H 4100 | Japanese Industrial Standard for Aluminum alloys | Various alloys |
Corrosion Resistance and Heat Treatment Effects
Among these, 7050 shows outstanding stress corrosion cracking resistance at masking costs of mechanical strength because of carefully optimized tempers (T7651, T7451 specially recommended for aerospace).
7005 provides superior weldability but is less corrosion resistant compared to alloy 7050 or 7075, suitable for fabrication demanding complex weld joints and moderate corrosion conditions.
7075 offers maximum strength with good fatigue resistance but reduced corrosion resistance, often requiring specialized surface treatments such as anodizing in demanding fuel or saltwater exposure scenarios.
7005, 7050, and 7075 aluminum alloys address the modern demand driven by lightweight design, strength, damage tolerance, and corrosion requirements. By selecting the appropriate alloy combined with temper practices per defined industry standards, manufacturers can tailor-make aluminum sheet plates ideal for aerospace, transport, defense, and sporting industries.
This versatility backed by rich technical consistency enables customers to make a confident choice maximizing both performance and long-term durability in their specialized design needs. The comprehensive chemical data, proven temper specifications, and aligned standards ensure market-wide interoperability and trusted performance surpassing general aluminum sheet/value expectations.
Ready to enhance your projects with premium aluminum plate solutions? Contact us to learn more about our supply of 7005, 7050, and 7075 aluminum sheets tailored with customized specs and certification.
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