1. Is tantalum stronger than gold?
Yes, tantalum is significantly stronger than gold in terms of mechanical properties.
Tantalum: A hard, dense refractory metal with high tensile strength (~900–1,000 MPa) and hardness (Vickers hardness ~87–130 HV). It retains strength at elevated temperatures (up to ~2,000°C), making it ideal for high-stress applications.
Gold: A soft, malleable metal with low tensile strength (~120–200 MPa) and hardness (Vickers hardness ~25–35 HV). It deforms easily under stress and is not suitable for load-bearing applications.
Thus, tantalum is far stronger and more durable than gold.
2. Does China have tantalum?
China has limited natural tantalum reserves but is a major global processor, consumer, and exporter of tantalum products.
Reserves: China's tantalum reserves are relatively small compared to countries like the Democratic Republic of Congo (DRC) or Rwanda (which together hold ~60% of global tantalum reserves). Most Chinese tantalum is found in hard-rock deposits or as a byproduct of tin mining (e.g., in Guangdong, Jiangxi, and Yunnan provinces).
Production & Processing: China imports significant tantalum ore/concentrate (mainly from Africa) to meet domestic demand. It is a global hub for refining tantalum into high-purity metals, wires, capacitors, and alloys, driven by its massive electronics and aerospace industries.
In short, China has some tantalum resources but relies heavily on imports for raw materials.
3. What is the price of tantalum per kilo?
Tantalum prices vary widely based on purity, form (e.g., powder, wire, ingot), and market conditions. As of 2024:
High-purity tantalum (99.95%+): Approximately 150–250 per kilogram (varies by supplier and specification).
Lower-purity or processed forms (e.g., tantalum capacitor-grade powder): May cost 80–180 per kilogram.
Key price drivers include:
Supply disruptions (e.g., mining delays in the DRC).
Demand from electronics (smartphones, EVs) and defense/aerospace sectors.
Geopolitical factors (trade restrictions, ethical sourcing concerns).
Prices are dynamic; for real-time quotes, consult metal exchanges (e.g., London Metal Exchange) or suppliers like AMG or Cabot.
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