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7075 aluminum alloy powder · Aluminum-zinc-magnesium-copper alloy powder
Ultra-high strength · Lightweight · Dedicated to aerospace/additive manufacturing 15–53 μm / 20–63 μm / -300 mesh ~ -500 mesh
Process Advantages
Ultra-high strength · Comparable to steel
T6‑tempered aluminum alloy exhibits high tensile strength and excellent yield strength, making it one of the strongest aluminum alloys and comparable to certain steels.
Lightweight · Low Density
With a density approximately one-third that of steel, it achieves significant weight reduction while meeting high-strength requirements, making it an ideal material for lightweight design.
Excellent fatigue resistance
Its fatigue strength is significantly higher than that of other 7xxx-series aluminum alloys, making it well suited for structural components subjected to cyclic loading.
Diverse manufacturing processes · Can be strengthened through heat treatment
Compatible with a variety of processes, including SLM, cold spraying, and MIM, it supports surface treatments such as anodizing and can achieve further strength enhancement through T6 heat treatment.
Product Real-World Photos & Microscopic Morphology
15–53 μm powder SEM
High sphericity, narrow particle size distribution, and excellent flowability.
Real-life photos of the powder
Silver-gray powder, packaged in vacuum-aluminum foil bags or iron drums, with argon gas protection.
3D printing / aerospace components
Aircraft skin, UAV structural components, lightweight brackets
7075 aluminum-zinc-magnesium-copper alloy powder
7075 is the most widely used alloy in the 7xxx series, with zinc as the primary alloying element and magnesium and copper providing synergistic strengthening. After solution treatment and aging, it exhibits high strength comparable to certain steels, while its density is only about one-third that of steel. TIJO employs a non‑vacuum gas atomization process to produce 7075 aluminum alloy powder, which features excellent sphericity and outstanding flowability. This powder is suitable for advanced manufacturing processes such as selective laser melting (SLM/LPBF), cold spray (CS), hot isostatic pressing (HIP), and metal injection molding (MIM). The material finds broad applications in aerospace, automotive lightweighting, sports equipment, and defense industries. Note that during LPBF, 7075’s wide solidification range and steep thermal gradients can lead to hot cracking and porosity; therefore, it is recommended to employ optimized process parameters or grain‑refinement strategies.
LPBF process tip: It is recommended to employ optimized process parameters or grain‑refinement strategies to control hot cracking and porosity.
Corresponding grade
| Standard system | Corresponding grade |
|---|---|
| China GB/T | 7075 |
| United States AA/UNS | 7075 / A97075 |
| Japanese JIS | A7075 |
| German DIN | AlZnMgCu1.5 (3.4365) |
| European Union EN | AW-7075 / AlZn5.5MgCu |
| French NF | 7075 (A-Z5GU) |
| British BS | 7075 (C77S) |
* 7075 is one of the highest-strength grades in the 7xxx series of aluminum alloys and is widely used worldwide.
Chemical Composition (wt%)
| Element | Zn | Magnesium | Cu | Cr | If ≤ | Fe ≤ | Mn ≤ | Ti ≤ | Other individual ≤ | Other total ≤ | Al |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Content range | 5.10-6.10 | 2.10-2.90 | 1.20-2.00 | 0.18-0.28 | 0.40 | 0.50 | 0.30 | 0.20 | 0.05 | 0.15 | Bal. |
* Complies with the GB/T 3190-2020 standard “Chemical Composition of Wrought Aluminum and Aluminum Alloys.” The specific composition shall be subject to the batch inspection report.
Physical and Mechanical Properties (T6 Condition)
Physical properties
| Parameter | Typical value |
|---|---|
| Density | 2.81 g/cm³ |
| Melting point | 447-635℃ |
| Thermal conductivity (20°C) | 130 W/(m·K) |
| Resistivity | ≈0.052 Ω·mm²/m |
| Coefficient of thermal expansion (20–250°C) | 24.4×10⁻⁶/K |
| Poisson's ratio | 0.33 |
Mechanical Properties (T6 Condition)
| Parameter | Typical value |
|---|---|
| Tensile strength | 510-572 MPa |
| Yield strength | ≥503 MPa |
| Elongation | 8-11% |
| Brinell hardness | 150-190 HB |
* The mechanical properties are reference values for the T6 heat-treated condition and may vary depending on the forming process and heat‑treatment parameters.
Particle Size Specifications & Selection Guide
| Particle size specification | Loose packing density (g/cm³) | Tap density (g/cm³) | Oxygen content (ppm) | Recommended Process | Typical Applications |
|---|---|---|---|---|---|
| 15–53 μm | 0.9-1.5 | 1.5-2.5 | 800-1200 | SLM/LPBF laser printing | High-precision complex structural components, aerospace brackets |
| 20–63 μm | 0.9-1.5 | 1.5-2.5 | 800-1200 | SLM/LPBF laser printing | Aerospace, defense, and competitive sports equipment |
| 45–105 μm | 1.0-1.8 | 1.8-3.0 | 800-1200 | Cold Spraying (CS), Hot Isostatic Pressing | Additive manufacturing of large components and coating repair |
| 53-150 μm | 1.2-2.0 | 2.0-3.5 | 800-1200 | Hot Isostatic Pressing (HIP), Powder Metallurgy | Large-sized structural components, mold inserts |
| -300 mesh | 0.8-1.2 | 1.3-2.0 | 1000-1500 | MIM injection molding, powder metallurgy pressing | Precision parts with complex shapes |
| -400 mesh | 0.7-1.0 | 1.2-1.8 | 1000-1500 | Fine powder metallurgy, MIM | High-precision micro parts |
| -500 mesh | 0.6-0.9 | 1.0-1.5 | 1500-2000 | Ultrafine powder technology | Special Precision Applications |
* Tap density and bulk density are significantly influenced by particle size distribution and morphology; refer to the batch-specific test report for precise values. The standard recommended specifications are 15–53 μm and 20–63 μm.
Heat Treatment Process Reference (T6 Condition)
| Heat treatment stage | Process parameters | Explanation |
|---|---|---|
| Solution treatment | 465–480°C, hold for 1–2 hours, then quench in water. | Obtained a supersaturated solid solution |
| Artificial aging (T6) | 120–130°C, hold for 24 hours | Peak aging time, achieving maximum strength |
| Overage (T73) | Two-stage aging | Enhance stress corrosion resistance |
* Typical properties in the T6 condition: tensile strength ≥ 572 MPa, yield strength ≥ 503 MPa, elongation ≥ 11%.
Typical application areas
Aerospace
Aircraft skin, wing spars, landing gear, UAV structural components, satellite parts
Automotive industry
Lightweight vehicle body frame, suspension system, drive shaft, and battery pack housing
Sports equipment
Bicycle frames, mountaineering gear, high-performance gears, and competitive equipment
Mold manufacturing
High-strength, lightweight injection molds, die-casting mold inserts, and tooling fixtures
Additive manufacturing
Complex topology-optimized parts, rapid functional prototypes, conformal cooling channels
7075 vs. Related Aluminum Alloy Powders
| Material Type | Key Features | Tensile strength (MPa) | Density (g/cm³) | Main applications |
|---|---|---|---|---|
| 7075 | Ultra-high strength, excellent fatigue resistance, and lightweight design | 510-572 | 2.81 | Aerospace, automotive, and sports equipment |
| 6061 | Good corrosion resistance and excellent weldability | ≈310 | 2.70 | General structural components, marine engineering |
| AlSi10Mg | Cast aluminum alloys exhibit excellent suitability for additive manufacturing. | ≈460 | 2.67 | Additive Manufacturing Generic Structural Components |
| 2024 | High strength and excellent fatigue resistance | ≈470 | 2.78 | Aircraft skin and structural components |
7075 is one of the highest-strength aluminum alloy grades and is the material of choice for applications that demand an extreme strength-to-weight ratio.
Process Recommendations and Component Selection
| Craftsmanship | Recommended particle size | Key parameters | Post-processing |
|---|---|---|---|
| SLM/LPBF Additive Manufacturing | 15-53μm / 20-63μm | Laser power: 200–400 W; layer thickness: 30–60 μm; preheating temperature: 150–200 °C. | Stress relief + T6 heat treatment |
| Cold Spray (CS) | 45–105 μm | Gas temperature: 500–800°C; pressure: 3–5 MPa. | Heat treatment |
| Hot Isostatic Pressing (HIP) | 53-150 μm | 450–500°C, 100–150 MPa, 2–4 h | T6 heat treatment |
| MIM injection molding | -300 mesh / -400 mesh | Catalytic degreasing + sintering at 600–650°C | T6 heat treatment |
* Specific process parameters must be optimized based on the equipment and workpiece; TIJO can provide process guidance and technical support.
End-to-end testing capability
Each batch of 7075 powder is tested for major elements (Zn, Mg, Cu, Cr), impurities (Si, Fe, Mn, Ti), particle size distribution, oxygen content, flowability, and both loose‑packed and tapped densities. A Certificate of Analysis (COA) is provided.
Packaging & Delivery
Powder packaging
Vacuum-sealed in a double-layer aluminum foil pouch (to prevent oxidation), with an outer iron or plastic drum.
Specifications: 1 kg, 5 kg, 10 kg, 25 kg, 50 kg per drum
Export packaging
Export orders are packed in wooden crates or palletized and reinforced to protect against moisture and impact.
Compatible with sea, air, and international express shipping.
Delivery time
Standard particle size in stock; ships within 3–7 days after order confirmation.
Customized particle size or composition: 7–15 days
Batch Traceability
For each batch, a sample is retained, and the COA report is shipped with the goods.
Supports third-party testing (e.g., SGS)
Free sample
Free samples are provided for process validation.
Small-batch samples; bulk supply upon quality confirmation.
Customized Services
Custom particle size and fine-tuning of the Zn/Mg/Cu ratio
Meets special operating conditions and equipment requirements
Shipping documents
COA, MSDS, ingredient list, packing list
Meets export customs clearance requirements and customer in-plant inspection standards.
Technical Support
Provides guidance on process parameters for SLM, cold spraying, and MIM.
Assist in resolving issues encountered during use.
Inquire Now for Free Samples
Fill out the form on the right or contact us directly; we will provide product samples, technical data sheets, and price quotes to help you quickly complete your additive manufacturing process validation.
Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
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Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
