Which of the following materials is NOT used in cherryMAX fasteners?

CherryMAX fasteners are designed for applications in the aerospace industry where reducing weight while ensuring high performance and reliability is essential. These fasteners are primarily composed of materials that can withstand the demanding conditions of aviation environments.

Among the materials listed, carbon steel is not used in the manufacturing of CherryMAX fasteners. The main reason for this is that carbon steel does not possess the same level of corrosion resistance and weight efficiency that is crucial for aerospace applications; thus, it is typically not the material of choice for fastening solutions in this context.

Conversely, materials like aluminum alloys and high-strength titanium are commonly utilized in CherryMAX fasteners. Aluminum alloys provide an optimal strength-to-weight ratio, which is vital for aerospace applications, while high-strength titanium is known for its excellent strength and low density, making it ideal for high-performance use. Monel, a nickel-copper alloy, is also favored for its high corrosion resistance, which is advantageous in aerospace conditions.

By using these materials, CherryMAX fasteners achieve the needed strength, durability, and resistance to environmental factors, ensuring they meet the stringent requirements of aerospace engineering.