1, raw material cost: titanium and magnesium, the main components of titanium-magnesium alloy, are relatively rare metal elements, and their mining and refining costs are higher than that of aluminum. Therefore, from the perspective of raw material cost, the price of titanium-magnesium alloy will naturally be higher than that of aluminum alloy.

2. Market demand and supply: Due to the high performance and unique use of titanium-magnesium alloy, its market demand is relatively stable and continues to grow. However, due to its high production difficulty and cost, the supply is relatively limited, which further pushes up the market price of titanium-magnesium alloy, which is more expensive than aluminum alloy.

3. Titanium-magnesium alloy is an important alloy material, which is mainly composed of titanium plus magnesium and aluminum. This alloy is based on titanium and has the characteristics of low density and high strength by adding some other components such as magnesium and aluminum. Titanium-magnesium alloy not only has excellent corrosion resistance, but also can remain stable in harsh environments such as strong acid and alkali, and will not produce oxide layer due to corrosion, so it has a long service life.