Aluminum profiles are typically made from aluminum alloys that offer a good combination of strength, durability, and formability. The specific grade of aluminum used for profiles can vary depending on the application and desired characteristics. Here are a few commonly used aluminum alloys for profiles:

1. Aluminum Alloy 6061: This is one of the most commonly used aluminum alloys for profiles. It offers a good balance of strength, machinability, and weldability. It is often used in structural applications, such as frames, supports, and extruded components.

2. Aluminum Alloy 6063: This alloy is known for its excellent extrudability, making it well-suited for manufacturing aluminum profiles. It has good corrosion resistance and is commonly used for architectural applications, window frames, and decorative profiles.

3. Aluminum Alloy 6082: This alloy offers higher strength compared to 6061 and 6063 alloys, making it suitable for applications that require greater load-bearing capacity. It is often used in heavy-duty structural profiles, trusses, and bridges.

4. Aluminum Alloy 7075: This alloy is one of the strongest aluminum alloys available. It has excellent strength-to-weight ratio and is commonly used in aerospace, aviation, and high-performance applications where strength is critical.

These are just a few examples, and there are many other aluminum alloys available with varying properties. The selection of the specific grade depends on factors such as the intended application, required strength, corrosion resistance, and other performance requirements.