FAA AMT Airframe Practice Exam 2026 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

Magnesium alloy structures require a specific type of rivet that is able to withstand the chemical reactions between the magnesium and other metals. While 2024, 7075, and stainless steel are all commonly used for riveting, they are not the best choice for magnesium alloys. 2024 aluminum is a poor choice due to its high copper content which can cause galvanic corrosion when in contact with magnesium. 7075 aluminum may also cause corrosion due to its zinc content. Stainless steel has a higher risk of stress corrosion cracking when used with magnesium alloys. Therefore, option B 5056 aluminum, is the best choice for riveting magnesium alloy structures.