7075 Aluminum Plate
Ultra-high-strength 7075 aerospace grade aluminum plate. T6 & T651 tempers. Exceptional strength-to-weight ratio, ideal for aircraft structures, defense, and high-stress machinery. ASTM B209 / AMS 4045 certified.
| Material | Aluminum-Zinc-Magnesium-Copper Alloy |
|---|---|
| Grade / Standard | 7075 |
| Thickness | 0.5mm - 250mm |
| Width | 500mm - 2800mm |
| Length | 1000mm - 8000mm |
| Delivery Condition | quenched_tempered / annealed |
| Surface Treatment | bare |
| MOQ | 3 Tons |
| Delivery Time | 15-30 Days |
| Loading Port | Tianjin / Shanghai / Qingdao |
Overview of 7075 Aluminum Plate
7075 aluminum plate is an ultra-high-strength, heat-treatable alloy from the 7xxx series, with zinc as its primary alloying element. It is one of the strongest aluminum alloys commercially available, boasting a strength-to-weight ratio that surpasses that of many steels. This exceptional property has made it a cornerstone material in the aerospace and defense industries. When heat-treated to its most common tempers, T6 and T651, 7075 offers outstanding mechanical strength and good fatigue resistance. Specified under standards like ASTM B209 and AMS 4045, 7075 is the definitive choice for highly stressed structural parts and critical components where maximum strength is the top priority.
Key Features and Properties of 7075 Aluminum
7075 aluminum is engineered for ultimate performance in high-stress environments:
– **Ultra-High Strength:** After heat treatment, it achieves one of the highest tensile and yield strengths of any aluminum alloy, comparable to many common steel grades.
– **Excellent Strength-to-Weight Ratio:** This is its most critical attribute, allowing for the design of strong yet lightweight components, essential for aircraft and high-performance equipment.
– **Good Machinability:** In the T651 temper, it has good machinability, allowing for the creation of complex parts with precision.
– **High Fatigue Strength:** It exhibits good resistance to failure under cyclic loading, a vital property for aircraft structures and other dynamic applications.
– **Corrosion Resistance:** It offers fair corrosion resistance. It is more susceptible to stress corrosion cracking than many other aluminum alloys, so for certain environments, overaged tempers like T73 or T7351 are used to improve this characteristic.
– **Weldability:** 7075 is generally not recommended for welding, as the heat significantly compromises its high strength and can lead to cracking.
Main Applications of 7075 Aluminum Plate
The extreme strength of 7075 aluminum plate limits its use to the most demanding applications:
– **Aerospace & Defense:** The primary user of 7075. It is used for aircraft fuselages, wing skins and spars, bulkheads, and other highly stressed structural airframe components. Also used for missile parts and military hardware.
– **High-Performance Recreational Equipment:** Used for high-end bicycle frames and components, rock climbing gear, and high-stress parts in performance sports equipment.
– **Mold Making & Tooling:** Used for producing plastic injection molds and blow molds due to its high strength and ability to be polished to a fine finish.
– **Industrial & Machinery:** Employed in manufacturing high-stress gears, shafts, and other critical components in robotics and automated machinery.
Why Choose Us for 7075 Aluminum Plate
Shandong Tanglu Metal Material Co., Ltd. is a specialist supplier of prime, aerospace-grade 7075 aluminum plate. We source material exclusively from world-class, certified mills to guarantee compliance with stringent standards like ASTM B209 and AMS 4045. Every plate is delivered with a full Mill Test Certificate (MTC), ensuring complete traceability and verification of its superior mechanical properties. We specialize in T6, T651, and T7351 tempers and offer precision plate sawing and CNC routing to supply custom-sized blanks ready for your high-tolerance machining operations. Our expertise in handling and exporting high-value alloys ensures your material arrives in perfect condition.
📐 Dimension & Size Table
| Temper | Thickness (mm) | Width (mm) | Length (mm) |
|---|---|---|---|
| T6 / T651 | 6.0 - 250 | 1000-2800 | 1000-8000 |
| T73 / T7351 | 6.0 - 200 | 1000-2800 | 1000-8000 |
| O (Annealed) | 0.5 - 250 | 1000-2800 | 1000-8000 |
* Custom sizes available upon request. Tolerances per relevant international standards.
🔬 Chemical Composition
| Element | Min | Max | Display Value | Note |
|---|---|---|---|---|
| Al | Balance | |||
| Zn | 5.1 | 6.1 | 5.1 - 6.1 | Primary alloying element |
| Mg | 2.1 | 2.9 | 2.1 - 2.9 | |
| Cu | 1.2 | 2.0 | 1.2 - 2.0 | |
| Cr | 0.18 | 0.28 | 0.18 - 0.28 | |
| Fe | 0.50 | ≤0.50 | ||
| Si | 0.40 | ≤0.40 |
* Chemical composition may vary by heat, thickness and specification. Please refer to the actual mill test certificate.
⚙️ Mechanical Properties
| Property | Value | Unit | Test Condition |
|---|---|---|---|
| Tensile Strength (T651) | ≥572 | MPa | For 6.3-12.5mm thickness |
| Yield Strength (T651) | ≥503 | MPa | For 6.3-12.5mm thickness |
| Elongation (T651) | ≥7 | % | For 6.3-12.5mm thickness |
| Hardness (T651) | ≈150 | HBW | Brinell Hardness |
| Tensile Strength (O Temper) | ≤280 | MPa | Annealed / Soft condition |
| Yield Strength (O Temper) | ≤150 | MPa | Annealed / Soft condition |
* Values shown are minimum requirements unless otherwise stated.
📦 Commercial Information
| Packaging | Specialized, heavy-duty export packing for high-value plates. Stacked on robust wooden skids, fully protected with edge guards, interleaved with plastic, wrapped in waterproof materials, and securely strapped to prevent any movement or damage. |
|---|---|
| Payment Terms | T/T (Telegraphic Transfer),L/C (Letter of Credit) |
| Price Term | FOB,CFR,CIF,EXW |
| Supply Capacity | 8,000 Tons/Month |
| Loading Port | Tianjin / Shanghai / Qingdao |
Why Choose Our 7075 Aluminum Plate?
Ultra-High Strength
One of the highest strength aluminum alloys available, with mechanical properties comparable to many steels, making it ideal for the most demanding applications.
Superior Strength-to-Weight Ratio
The primary reason for its dominance in the aerospace industry. It allows for the construction of strong, durable structures that are also extremely lightweight.
Excellent for Machining
The T651 temper is stress-relieved, providing excellent dimensional stability during high-speed machining of complex parts, jigs, and molds.
High Fatigue Strength
Offers good resistance to fatigue failure under cyclic loading, a critical requirement for aircraft structures and high-performance moving parts.
Aerospace Certified
Available with full certification to aerospace standards such as AMS 4045, ensuring complete traceability and quality assurance for critical components.
🏭 Applications of 7075 Aluminum Plate
7075 aluminum plate is the benchmark for high-stress applications where strength is the most critical factor. It is the workhorse of the aerospace industry, forming the structural backbone of aircraft, from wing spars and fuselage frames to landing gear components. In defense, it is used for armored vehicle plating and missile components. Beyond aerospace, its high strength is utilized in performance-critical areas like high-end bicycle frames, rock climbing equipment, and industrial robotics. For mold makers, 7075 provides a durable, strong, and polishable material for creating high-pressure injection molds.
📋 Quality & Certification
Our Certifications
- ✅ ISO 9001:2015
- ✅ CE Marking
- ✅ SGS Certified
Mill Certificate Type
- 📋 EN 10204 3.1
- 📋 Original Mill Certificate
❓ Frequently Asked Questions
What is 7075 aluminum?
7075 is an ultra-high-strength, heat-treatable aluminum alloy from the 7xxx series, with zinc as its primary alloying element. It is most famous for its use in the aerospace industry due to its excellent strength-to-weight ratio.
Why is 7075 aluminum so strong?
Its high strength comes from precipitation hardening. Alloying elements like zinc, magnesium, and copper form microscopic precipitates within the aluminum's crystal structure during heat treatment (aging), which act as obstacles to dislocation movement, making the material much stronger.
What is the difference between 7075-T6 and 7075-T651?
Both are fully heat-treated for maximum strength. T651 plate has an additional stress-relieving step (controlled stretching) performed before aging. This minimizes internal stresses, so it is much less likely to warp or distort when large amounts of material are removed during machining. T651 is the standard choice for machined parts.
Can 7075 aluminum be welded?
It is generally not recommended to weld 7075. The intense heat of welding destroys the carefully created heat-treated microstructure, drastically reducing its strength in the weld area. The alloy is also prone to cracking during welding. It is designed for assembly using mechanical fasteners or bonding.
Which is stronger, 7075 or 6061 aluminum?
7075-T6 is significantly stronger than 6061-T6, with nearly double the yield strength. This is why 7075 is chosen for the most critical, high-stress applications, while 6061 is used for more general-purpose structural work.
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7075 Aluminum Plate
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