Door handles can be made from various materials depending on the style, function, and budget. Here are some common materials used for door handles:

1. Brass: Brass is a popular choice for door handles due to its durability, corrosion resistance, and attractive appearance. It can be polished to a high shine or given different finishes like antique or satin.  Brass is heavy and gives a quality feel to any item of hardware.

2. Stainless Steel: Stainless steel is another common material used for door handles. It offers excellent durability, resistance to rust and corrosion, and is easy to clean. Stainless steel handles are available in different finishes, such as brushed, polished, or satin.

3. Zinc Alloy: Zinc alloy handles are a cost-effective option and can be designed to resemble more expensive materials like brass or bronze. They are lightweight, corrosion-resistant, and can be finished with various coatings, such as chrome or nickel.

4. Aluminum: Aluminum handles are lightweight, resistant to corrosion, and can be anodized to provide different finishes. They are commonly used in commercial or contemporary settings.

5. Bronze: Bronze handles are known for their classic and elegant appearance. They are durable, resistant to corrosion, and can develop a beautiful patina over time. Bronze handles may be more expensive compared to other materials.

6. Plastic or PVC: In some cases, door handles can be made from plastic or PVC materials. These are often used in less expensive or temporary applications and may not offer the same durability or aesthetics as metal handles.

It’s important to note that the availability of specific materials and designs may vary based on region, manufacturer, and door handle type (e.g., lever handle, knob, pull handle).  If an additional finish is applied to these metals, that finish may not be as durable as the base metal, therefore, affecting its resistance to corrosion.