镁合金能否成为新的汽车轻量化材料：价格腰斩

Investment Rating - The industry investment rating is "Positive" [2] Core Insights - Magnesium alloy's price has significantly decreased, making it a potential alternative to aluminum alloy for lightweight materials in the automotive sector. The density of magnesium alloy is approximately 67% that of aluminum alloy, which enhances its lightweight properties [1][6] - Historically, magnesium alloy's application in the automotive industry has been limited due to high costs and poor corrosion resistance. However, recent technological advancements and price reductions may facilitate broader adoption [1][7][9] - The introduction of new corrosion-resistant magnesium alloys, such as the "SSMag" developed by China Aluminum, shows promise for improved performance in automotive applications [11][16] Summary by Sections 1. Lightweight Effectiveness - Magnesium alloy offers better lightweight reduction effects compared to aluminum alloy, making it a viable candidate for new lightweight materials in automotive manufacturing [6] 2. Historical Challenges - Magnesium alloy has faced challenges in the automotive sector due to its inferior corrosion resistance and historically high prices, which limited its usage to specific applications [7][8][9] 3. Technological Breakthroughs - Recent advancements have led to the development of new corrosion-resistant magnesium alloys, which may enhance their applicability in the automotive industry [11][12] 4. Price Dynamics - Since mid-2023, magnesium alloy prices have dropped significantly, aligning closely with aluminum alloy prices, thus alleviating previous cost pressures for automotive applications [13][14] 5. Accelerated Application - With improved corrosion resistance and competitive pricing, magnesium alloy is expected to see accelerated adoption in automotive applications, including electric motor housings and battery pack casings [16][18][19] 6. Conclusion - The magnesium alloy market is still in its early stages within the automotive sector, but recent price drops and technological advancements provide a strong foundation for future growth. The industry's ability to validate these materials for mass production will be crucial for their success [19]