Are You Looking for a Material That Combines High Strength and Lightweight for Aerospace Structures, Military Equipment, or High-Performance Molds?If so, 7075 Aluminum Block could be the ideal solution you need.
- Steel-Like Strength: Its tensile strength can easily match certain steels while maintaining the lightweight advantage unique to aluminum.
- Customizable Specifications and Heat Treatments: Available in T6, T651, and T73 tempers, offering flexible combinations to meet the demanding requirements of aerospace, military, racing, and mold industries.
- Reliable Quality Assurance: Chalco supplies 7075 Aluminum Block that complies with ASTM B209, AMS-QQ-A-250/12, and EN 485 standards, with options for ultrasonic testing or third-party certification.
If you need to stay "light yet strong" under extreme load conditions, don't miss out on the 7075 Aluminum Block.
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7075 Hot-Rolled Aluminum Block
The hot rolling process creates a uniform internal structure, ideal for large structural components and precision machining.
Thickness: 0.25”-16”
Width: 48”-96”
Length: ≤158”
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7075 Forged Aluminum Block
High-temp forging optimizes grain structure, ideal for high-strength, tough precision parts.
Thickness: 4”-24”
Width: 24”-60”
Length: ≤158”
Specifications of 7075 Aluminum Block
Available Sizes
Chalco offers a variety of 7075 aluminum block sizes, shapes, and precision grades to meet different industry demands for strength, accuracy, and machinability.
- Thickness: ≤11.8”
- Width: ≤148”
- Length: Customizable
- Popular Sizes: 24" × 48", 48" × 96", 48" × 120", 48" × 144", 60" × 144"
- Standard Tolerance: -0'' to +1/8''
- Precision Tolerance: ±0.005''
Available Shapes
We supply 7075 aluminum blocks in multiple geometric shapes to fit various manufacturing processes and application needs:
7075 Square Aluminum Block
7075 Rectangular Aluminum Block
7075 Round Aluminum Block
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Precision 7075 aluminum block
Precision 7075 aluminum blocks offer high-accuracy finishes with ±0.005'' tolerances, ideal for CNC parts, molds, and applications requiring strict precision.
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Large 7075 aluminum block
Large 7075 aluminum blocks can be customized up to 12” thick, serving aerospace, heavy equipment, and large structural applications needing high material volume.
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Small 7075 Aluminum Block
Small 7075 aluminum blocks, available from 1/2” × 1/2”, are ideal for sample testing, precision parts, and small structures. Chalco offers cut-to-size services for fast delivery.
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Aircraft grade 7075 aluminum block
Aircraft-grade 7075 aluminum blocks meet AMS standards, NADCAP certified, and are used in fuselages, landing gear, and critical load-bearing parts for their strength and fatigue resistance.
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Custom 7075 aluminum block
Custom 7075 aluminum blocks, processed by laser cutting or waterjet, support complex profiles, perforations, and intricate structures to speed up prototyping and production.
All 7075 aluminum blocks can be customized with cutting, chamfering, drilling, CNC machining, and surface treatments. Whether you need small-batch prototypes or bulk orders with fast delivery, Chalco ensures flexible and reliable service. Contact us today to request a sample or get a customized quote!
Heat Treatment Tempers of 7075 Aluminum Block
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7075-O Aluminum Block
7075-O aluminum block, annealed for softness and ductility, is ideal for forming and heat treatments needing high plasticity over strength.
ASTM B209, AMS 4044, EN 485
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7075-T6 Aluminum Block
7075-T6 aluminum block, with heat treatment and aging, offers high tensile strength and hardness, ideal for aerospace, molds, sports equipment, and high-load applications.
ASTM B209, AMS 4045, EN 485
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7075-T651 Aluminum Block
7075-T651 aluminum block, stress-relieved through stretching, offers high strength and stability, ideal for CNC machined and aerospace parts.
ASTM B209, AMS 4045, EN 485
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7075-T73 Aluminum Block
7075-T73 aluminum block, over-aged for improved corrosion resistance and slightly reduced strength, is ideal for landing gear, naval equipment, and harsh environments.
ASTM B209, EN 485
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7075-T7351 Aluminum Block
7075-T7351 aluminum block, stress-relieved from T73, offers improved corrosion resistance, high fatigue life, and is ideal for aerospace structures requiring long-term reliability.
ASTM B209, AMS 4078, EN 485
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7075-T7451 Aluminum Block
7075-T7451 aluminum block offers great stress corrosion resistance, ideal for aircraft and marine components needing stability and corrosion resistance.
ASTM B209, EN 485
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7075-T7651 Aluminum Block
7075-T7651 aluminum block offers high strength and moderate corrosion resistance, ideal for high-load structures in challenging environments.
ASTM B209, EN 485
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7075-T652 Aluminum Block (Forged)
7075-T652 aluminum block is stress-relieved by compression, offering high stability and resistance, ideal for thick parts, molds, and aerospace components.
ASTM B247, AMS 4310
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7075-T7352 Aluminum Block (Forged)
7075-7075-T7352 aluminum block offers superior corrosion resistance and fatigue performance, commonly used in aerospace hubs, connectors, and primary structures.
ASTM B247, AMS 4147
Performance Overview of 7075 Aluminum Blocks in Different Tempers
To meet the diverse requirements for strength, machinability, and corrosion resistance across industries, 7075 aluminum blocks are available in a wide range of heat treatment tempers. The following table summarizes the characteristics, applications, and recommended keywords for each temper:
| Tempers | Tensile strength | Extensibility | Processability | Corrosion resistance | Typical application scenarios |
| 7075-O | Lowest | Excellent | Excellent | Medium | Cold processing, deep drawing parts, non-structural support purposes |
| 7075-T6 | Very high | Medium | Good | Poor | High-strength CNC parts, molds, industrial structural parts |
| 7075-T651 | Very high | Low-medium | Excellent (dimensional stability) | Poor | Precision mold bases, aviation structures, processed parts that need to eliminate internal stress |
| 7075-T73 | Medium | Good | Good | Excellent | Aviation skins, military shells, parts with high risk of stress corrosion |
| 7075-T7351 | Medium high | Good | Excellent (dimensional control) | Excellent | Aircraft landing gear, fasteners, structural parts in highly corrosive environments |
| 7075-T7451 | Medium high | Fair | Good | Good | Aircraft cabin frames, aircraft shells, missile parts |
| 7075-T7651 | Extremely high | Low-medium | Good | Good | Military industry, high-load structures, aviation support frames |
| 7075-T7352 | Medium high (forgings) | Fair | Fair | Good | Aviation forgings, pressure-bearing parts, complex curved surfaces |
| 7075-T652 | Very high | Low-medium | Excellent (compression stress relief) | Poor | Thick forgings, aerospace support structures, military modules |
All 7075 aluminum blocks can be heat treated and precision cut according to specified tempers. CNC prototyping, small batch trial production, and export certification materials are fully supported.Welcome to contact Chalco for technical support and pricing information.
Are You Looking for an Aluminum Supplier?
If you need a professional aluminum supplier to provide you with high-quality, cost-effective aluminum, we will be your best choice.
Typical Applications of 7075 Aluminum Block
7075 Aluminum Block for CNC Machining
The 7075 Aluminum Block offers excellent cutting performance and dimensional stability, making it an ideal choice for CNC machining. States such as T651 help minimize stress deformation while maintaining strength, making it suitable for manufacturing complex structural components and high-precision parts.
7075 Aluminum Block for Mold Base
7075-T6 or T651 aluminum blocks, known for their high strength and good thermal conductivity, are widely used in the production of injection molds, die-casting molds, and other high-load mold bases. Their high processing efficiency and short molding cycles contribute to enhanced mold lifespan and stability.
7075 Aluminum Block for Aerospace Landing Gear
Aerospace landing gear requires materials with high strength, fatigue resistance, and corrosion resistance. The 7075-T7351 aluminum block meets these stringent standards with its combination of high strength and stress-corrosion resistance.
7075 Aluminum Block for Motorsports
Racing parts require a balance of weight and strength. The 7075 aluminum block, with steel-like strength and reduced weight, is perfect for suspension systems, chassis, and engine mounts, offering excellent machinability for performance optimization.
7075 Aluminum Block for Robotics or Automation
7075 aluminum blocks are perfect for automation equipment and robotic structural components due to their rigidity, lightweight, and durability. They are used in joints, brackets, actuating parts, and more, significantly improving motion precision and service life.
7075 Aluminum Block for Injection and Die Casting Tooling
The 7075-T6 and T651 aluminum blocks are widely used in precision tools such as die-casting molds, blow molds, PET bottle molds, and shoe molds, providing excellent thermal conductivity and dimensional stability, thus extending mold life.
7075 Aluminum Block for Military Applications
With its high strength, corrosion resistance, and impact resistance, the 7075 aluminum block is widely used in weapon systems, armored mounts, and military equipment structures. It is one of the ideal materials for military applications.
For further custom solutions tailored to your industry, feel free to contact us. We offer comprehensive technical support, including samples, CNC machining, and heat treatment recommendations.
Technical Data of 7075 Aluminum Block
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Chemical Composition of 7075 Aluminum Block
Elements Value 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 Silicon (Si) ≤0.40 Manganese (Mn) ≤0.30 Titanium (Ti) ≤0.20 Other individual impurity elements ≤0.05 Total impurities ≤0.15 Aluminum (Al) Margin -
Physical Properties of 7075 Aluminum Block
Performance indicators Value Density 0.1 lb/in³(2.81 g/cm³) Elastic modulus 10, 400 ksi(71.7 GPa) Shear modulus 3, 800–3, 900 ksi(26.2–26.9 GPa) Poisson's ratio 0.32 Thermal conductivity 900–1, 200 BTU-in/hr-ft²-°F(130–173 W/m·K) Electrical conductivity 33% IACS Specific heat capacity 0.229 BTU/lb-°F(0.96 J/g·°C) Melting point 890–1, 180 °F(477–638 °C) -
Mechanical Properties of 7075 Aluminum
Property 7075-O 7075-T6 7075-T651 7075-T73 7075-T7351 Ultimate Tensile Strength (ksi) 40 (bare); 39 (clad) 83 (bare); 76 (clad) 80 72.2 73.2 Yield Tensile Strength (ksi) 21 73 (bare); 67 (clad) 67 63.1 63.1 Fatigue Strength (ksi) 18 23 23 20.8 21.8 Shear Strength (ksi) 22 48 (bare); 46 (clad) 48 42.5 43.5 Hardness (Rockwell | Brinell) B17 | 60 B87 | 150 B87 | 150 B82 | 135 B82 | 135 Elongation at Break (%) min. 10% 11% 8.20% 7.10% 7.50%
Certification and Quality Control of 7075 Aluminum Block
As a professional supplier of aerospace-grade aluminum, Chalco strictly follows international aerospace standards to ensure each 7075 aluminum block has stable performance, traceable quality, and fully meets the demands of high-end manufacturing.
Non-Destructive Testing and Defect Control
For thicker specifications and critical applications, Chalco conducts ultrasonic non-destructive testing (NDT) on 7075 aluminum blocks to ensure there are no cracks, porosity, or inclusions. We provide EN 10204 3.1/3.2 third-party inspection reports and can arrange witness testing if needed.
The aerospace-grade 7075-T651, T7351, and T7651 aluminum blocks are NADCAP NDT certified, ensuring suitability for high-security applications.
Process Control and Heat Treatment Standards
Our production lines are NADCAP heat treatment certified (HT) to ensure the stability and reliability of processes such as solution treatment, quenching, and aging. We offer aerospace-grade 7075 aluminum blocks that comply with the following standards:
- AMS 4045 / AMS 4044 / AMS 4078
- ASTM B209 / B221 / B247 / AMS-QQ-A-250/12
- EN 485 / EN 573 / DIN 3.4365
Traceability and Quality System
All 7075 aluminum blocks from Chalco are tracked throughout the entire production process, from raw materials to finished products. Each batch is traceable to the melt lot, heat treatment cycle, defect inspection records, and quality control reports. Chalco has obtained the following certifications:
- AS 9100 - Aerospace Quality Management System
- ISO 9001 - General Quality Management System
- ISO 14001 - Environmental Management System
We also provide COC certificates, warranty certificates, and third-party inspection reports to assist customers in efficiently completing project audits and acceptance.
Why Choose Chalco as Your 7075 Aluminum Block Supplier?
When selecting high-strength aluminum alloy blocks, both the supplier's expertise and service efficiency are crucial. Chalco has earned the trust of global customers with its stable product performance, flexible processing and delivery capabilities, and mature customer service.
- Diverse Specifications and Customization: We offer a variety of states such as T6, T651, T7351, and T7651, and provide shapes including square, round, and custom shapes, meeting the needs of applications such as CNC machining, molds, and aerospace structures.
- Stable Machinability, Ideal for High-Precision Manufacturing: Using high-quality hot-rolled raw materials and aerospace-grade heat treatment processes, along with grain control and stress relief, our 7075 aluminum blocks have dense structure and stable dimensions, minimizing deformation during machining.
- Sufficient Stock and Fast Delivery: Regular sizes are available in stock for quick delivery, with flexible scheduling for non-standard products to shorten lead times and meet urgent sample requirements for projects.
- Transparent Pricing and Flexible Purchasing: We support retail, small-batch, and bulk purchasing, with favorable policies and a transparent pricing system, balancing cost-effectiveness with the advantages of long-term cooperation.
- One-Stop Service Support: From material selection advice, state recommendations, and sampling to machining guidance, Chalco offers full-process technical and after-sales support to ensure efficient procurement and worry-free use.
7075 Aluminum Block Procurement Guide
1. Specification and State Selection
Choose the appropriate aluminum block state (e.g., O, T6, T651, T7351, T7651) and shape (square, round, custom) based on the specific application. For aerospace structures, CNC machining parts, or mold applications, it is recommended to prioritize states with internal stress relief like T651 and T7351. These states ensure both strength and excellent dimensional stability. Choosing the right size and tolerance can also reduce material waste and machining costs.
2. Pricing Structure of 7075 Aluminum Blocks
7075 aluminum is a high-strength alloy, and its price is slightly higher than that of general-purpose alloys like 6061. The price is primarily influenced by the following factors:
- LME aluminum ingot base price
- Processing methods (e.g., heat treatment, forging, precision cutting)
- Shape and size (extra-thick or large blocks typically incur higher processing costs)
- Packaging method and transportation distance
It is recommended to define the state and dimensions before procurement and contact Chalco for specific pricing information.Quick Quote
3. Quality Standards and Documentation Support
The 7075 aluminum block is commonly used in industries with stringent quality requirements, such as aerospace and military. It must meet standards like ASTM, AMS, and EN. The material supplier should provide complete material documentation, including:
- Original material certification (COC)
- EN 10204 3.1/3.2 inspection reports
- Ultrasonic testing reports
- Heat treatment records
- Dimensional reports
This ensures transparency and traceability of product quality.
4. Stock and Delivery Time
Understand the supplier’s inventory and delivery schedules to ensure that the required aluminum blocks arrive on time and do not impact your production plan. Reliable supply chain management and timely delivery are critical for ensuring the smooth progression of your projects.
5. Export Packaging
For international shipping, high-quality packaging is crucial. Proper packaging materials and professional packaging methods effectively prevent rust, scratches, deformation, or other damages during transit. The supplier should use moisture-resistant and corrosion-proof packaging solutions, such as fumigated wooden boxes or wooden pallets, to reduce packaging damage and protect material quality.
6. Loading Solutions
An experienced order-follow-up team can provide flexible loading solutions based on the specifications and quantity of aluminum blocks. Choosing the appropriate container or bulk shipping method for custom loading not only optimizes space utilization but also helps reduce logistics costs while ensuring the safe and efficient delivery of goods to their destination.
Further 7075 product selection
- 7075 Aluminum Plate
- 7075 Aluminum Bar
- 7075 Aluminum Flat Bar
- 7075 Aluminum Tube
- 7075 Aluminum Extrusion
- 7075 Aluminum Forgings
7075 Aluminum Block FAQ
What Is the Difference Between 7075-T6 and 7075-T651?
7075-T651 undergoes additional stretching treatment on top of the T6 state to relieve internal stresses, making it more suitable for thick aluminum blocks or precision machining. This process significantly reduces the risk of deformation and warping after machining.
Is 7075 Suitable for CNC Machining?
Yes, 7075 aluminum blocks have excellent cutting performance and are ideal for CNC machining. After T6 or T651 heat treatment, the hardness and strength are significantly enhanced, allowing it to withstand higher cutting forces while maintaining good dimensional stability. However, due to its higher hardness, it is important to use the right tools and optimize cutting parameters.
How Is the Corrosion Resistance of 7075?
The corrosion resistance of 7075 is better than that of the 2xxx series, but slightly lower than 6061. For applications in moist or marine environments, it is recommended to choose T73 or T76 states, which have better corrosion resistance.
Can 7075 Aluminum Blocks Be Welded?
Welding is not recommended for 7075 because the welded area is prone to heat cracking. If welding is necessary, post-weld natural aging can help restore some strength, but it is generally advised to use rivets, bolts, or other mechanical fastening methods instead.
What Is the Minimum Order Quantity (MOQ) for 7075 Aluminum Blocks?
The MOQ can be customized based on size and state. Small batches can be cut, while large batches support customized production. Feel free to contact us for detailed MOQ information and sample support.
Does 7075 Easily Deform or Warp During Processing?
If materials like T651, T7351, or T7651 (stress-relieved states) are used, the risk of deformation is minimal. For thicker blocks, it is recommended to choose materials that have undergone ultrasonic testing to ensure no internal defects.
What Is the Difference Between 7075 and 6061?
7075 has a higher strength (tensile strength up to 570 MPa) and is suitable for high-load applications, while its weldability and corrosion resistance are not as good as 6061. If strength is the highest priority, 7075 should be considered.
Do Thick Aluminum Blocks Tend to Have Pores or Cracks?
The thick-spec 7075 aluminum blocks supplied by Chalco undergo ultrasonic (UT) testing in compliance with EN 10204 standards, ensuring there are no pores, inclusions, or cracks, providing reliable quality.