Ergal is a specific brand name of aluminum alloys with unique properties. While there are no direct synonyms for the term "Ergal", there are several other aluminum alloy brands with similar characteristics. These alloys often have higher strength-to-weight ratio, resistance to corrosion, and malleability compared to traditional aluminum. Some of these similar brands include 7075-T6, 7050-T7451, and AlZnMgCu 1.5. These alloys are commonly used in aerospace, military, and sporting industries for their durability and lightweight properties. Even though they're not identical to Ergal, these brands are considered viable alternatives for achieving comparable results.