Tantalum, with the chemical symbol Ta, is a steel-gray metal belonging to the VB family in the periodic table. It boasts an atomic number of 73 and an atomic weight of 180.9479. Exhibiting a body-centered cubic crystal structure, tantalum typically holds a valence of +5. Known for its low hardness and oxygen content-dependent characteristics, ordinary pure tantalum that has been annealed has a Vickers hardness of merely 140 HV. With a melting point reaching an impressive 2995°C, tantalum ranks fifth among the elements, coming after carbon, tungsten, rhenium, and osmium. It is exceptionally malleable, capable of being drawn into thin wires, and has a remarkably low coefficient of thermal expansion, expanding only by 6.6 parts per million per degree Celsius. Despite its toughness, tantalum surpasses copper in durability.
Tantalum is primarily found in tantalite and frequently coexists with niobium. It has moderate hardness and exceptional ductility, allowing it to be drawn into thin foils and fine wires. Featuring a low coefficient of thermal expansion, tantalum is highly resistant to corrosion due to its ability to form a stable tantalum pentoxide (Ta2O5) protective film. This remarkable chemical property makes it an ideal material for manufacturing evaporators, electrodes for electron tubes, rectifiers, and electrolytic capacitors. In the medical field, tantalum is used to create sheets or threads for suturing damaged tissues.
Tantalum finds usage across a multitude of industries, thanks to its unique and advantageous properties.
In various inorganic acid production processes, tantalum serves as an effective substitute for stainless steel.
Furthermore, in the realms of chemistry, electronics, and electrical sectors,
tantalum takes over roles traditionally held by precious metals such as platinum,
Tantalum capacitors play a critical role in military equipment manufacturing.
Remarkably, half of the world's tantalum production is allocated to the creation of tantalum capacitors.
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Changsha Xinkang Advanced Materials Co., Ltd (XK) is a global leader in the R&D, manufacturing, and sales of various high-tech materials. We specialize in delivering high-purity materials, customized alloys, compounds, and a diverse range of complex synthetic materials to research institutes and high-tech enterprises worldwide. Our expertise spans high-purity metals, high-purity compounds, rare-earth metals, powder materials, and coated substrates, among many other advanced materials.
ASTM/B ASME SB, AMS, DIN, JIS, and specific customer requirements. Our products have been extensively deployed in
the petrochemical industry, aerospace and aviation, shipbuilding, energy, medical,
military, electronics, environmental protection, machinery and instruments, metallurgy, automotive, and
numerous other fields.
Our state-of-the-art factory, located in Changsha, Hunan, spans an area of 4,000 square meters. It is
certified under the ISO9001:2015 quality management system and the ISO14001:2015 environmental
management system. We are equipped with advanced technology and a skilled team of technicians. To ensure
premium quality, we utilize various testing instruments such as carbon-sulfur analyzers, spectrometers,
flaw detectors, cupping machines, and stiffness testers. Our dedicated technicians, skilled workers, and
cutting-edge equipment enable us to deliver high-quality products and services. Our products are widely
exported to the USA, Europe, the Middle East, Japan, Korea, Singapore,
India, and Kenya. Our superior quality, competitive pricing, timely delivery, and exceptional after-sales service are
highly esteemed by our clientele.
Irrespective of the order volume or dimensions, we pledge to exceed your expectations and have been excelling in this commitment for years.
Standard Export Packaging: Securely vacuum sealed inside; robust export carton or sturdy wooden case outside.
We offer shipments via renowned couriers such as FedEx, DHL, UPS, and TNT express.
For shipments with a gross weight ≤100KG, and for larger consignments ≥100KG, the shipping method will be tailored to your needs through consultation.
1. Are you a trading company or a manufacturer?
Xinkang: We are a distinguished manufacturer with over a decade of expertise in this specialized field.
2. How long is your delivery time?
XinKang: Delivery is swift—3-5 days for standard sizes or samples, and 15 days for bulk quantities.
3. Do you have a Minimum Order Quantity (MOQ)?
XinKang: No, we welcome sample orders.
4. What are your payment options?
XinKang: Payment can be made via T/T in advance, PayPal, Western Union, and other methods.
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