Standard Titanium Material
Overview
Standard Titanium Material encompasses commercially pure titanium (Grades 1-4) and titanium alloys (e.g., Ti-6Al-4V). It is valued for its unique combination of light weight, high tensile strength, and resistance to extreme environments. Titanium forms a passive oxide layer that prevents corrosion, making it ideal for applications where steel or aluminum would fail. Industrial production involves the Kroll process, where titanium tetrachloride is reduced with magnesium. Further processing includes vacuum arc remelting to achieve desired purity and mechanical properties. The material is available in various forms such as sheets, bars, tubes, and wires to suit diverse manufacturing needs.
Physical and Chemical Properties
Titanium's density is about 60% of steel but with comparable strength, especially in alloyed forms like Grade 5 (Ti-6Al-4V). It maintains mechanical integrity from -250°C to 600°C and resists pitting in seawater, chlorine, and acidic environments. The metal is paramagnetic and has low thermal conductivity (21.9 W/m·K). Its passive oxide layer (TiO₂) reforms instantly if damaged, providing self-healing corrosion protection. However, it reacts with hydrofluoric acid, concentrated sulfuric acid, and dry chlorine gas, requiring careful handling in such conditions.
Main Applications
In aerospace, titanium is used for aircraft fuselages, engine components, and landing gear due to its fatigue resistance and weight savings. The medical industry relies on its biocompatibility for orthopedic implants and surgical tools. Chemical plants utilize titanium heat exchangers, reactors, and piping for handling corrosive media. Marine applications include propeller shafts and submarine components. Emerging uses include automotive lightweighting, sports equipment, and architectural cladding for its aesthetic durability.
Safety and Storage
Solid titanium poses minimal health risks, but fine powder or dust can ignite spontaneously in air (autoignition temperature ~1,200°C). Machining requires dust extraction systems and Class D fire extinguishers. Store titanium away from strong oxidizers and acids. Finished products should be kept clean and dry to prevent galvanic corrosion when coupled with dissimilar metals. Electrochemical passivation treatments (e.g., nitric acid baths) may be applied to enhance surface stability.
B2B Procurement Guide
Key specifications to verify include ASTM grade (e.g., Grade 2 for general corrosion resistance, Grade 5 for high strength), dimensions, and surface finish. Mill test reports should confirm composition and mechanical properties. Lead times can be lengthy (4-12 weeks) for specialized forms. Consider regional suppliers in China (e.g., Baoji), the US, or Russia for bulk orders. For critical applications, request additional testing like ultrasonic inspection or corrosion validation per industry standards (e.g., ASTM G48 for pitting resistance).
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