Titanium alloy is known as the "space metal" and "ocean metal". Its core advantages can be summarized in one sentence: extremely high specific strength (as light as aluminum, as strong as steel), excellent corrosion resistance, and the ability to withstand extreme temperature changes. Below is a detailed explanation of its core properties: · Lightweight and high-strength (its greatest advantage): With a density of only about 4.5g/cm³ (roughly 60% that of steel), it boasts extremely high tensile strength. Its specific strength (strength/density) far exceeds that of steel and aluminum alloys, making it the top choice for structural weight reduction.· Superior corrosion resistance: It naturally forms a dense oxide film on its surface, making it "immune" to seawater, wet chlorine gas, strong acids, and more. It is a premier material in marine engineering.· Heat and cryogenic resistance: It has an extremely wide operating temperature range. Some titanium alloys can work continuously at 500℃ while maintaining good toughness at a low temperature of -253℃, a feat that many other metals cannot achieve.· ⚠️ High processing cost (key disadvantage): Low thermal conductivity (poor heat dissipation, easy to damage cutting tools), low elastic modulus (poor rigidity, prone to deformation), and high chemical reactivity. At high temperatures, it readily reacts with oxygen and hydrogen, requiring welding and heat treatment to be performed in a vacuum or under argon protection, resulting in extremely high processing difficulty and cost.