
Tantalum, with the chemical symbol Ta, is a striking steel-gray metal belonging to the VB family in the periodic table. It boasts an impressive atomic number of 73 and an atomic weight of 180.9479. This body-centered cubic crystal typically exhibits a valence of +5. One of tantalum's notable features is its relatively low hardness, which varies based on oxygen content. For example, annealed ordinary pure tantalum has a Vickers hardness of just 140 HV. With a melting point of an astounding 2995°C, it ranks as the fifth-highest among elemental substances, right after carbon, tungsten, rhenium, and osmium. Tantalum's exceptional malleability allows it to be drawn into ultra-thin wires, and it has a remarkably low coefficient of thermal expansion, expanding by merely 6.6 parts per million per degree Celsius. Additionally, tantalum surpasses copper in toughness, making it an incredibly versatile material.
Primarily found in tantalite alongside niobium, tantalum is known for its moderate hardness and excellent ductility, enabling it to be drawn into thin foil or fine wire. Its notably low coefficient of thermal expansion and chemical stability make it highly resistant to corrosion. This makes tantalum ideal for manufacturing evaporators and various other equipment. Additionally, it serves as an electrode in electron tubes, rectifiers, and electrolytic capacitors. In the medical field, tantalum is crafted into sheets or threads, aiding in the suturing of damaged tissues. Its remarkable resistance to corrosion stems from a stable tantalum pentoxide (TaO) film that forms on its surface.
Thanks to its unique and extraordinary properties, tantalum finds extensive applications across a multitude of industries, making it an invaluable material.
In the production of diverse inorganic acids, tantalum can effectively replace stainless steel, offering superior performance and durability.
Furthermore, in the chemical, electronic, and electrical industries, tantalum serves as a versatile substitute for platinum, taking on roles previously reserved for this precious metal.
Tantalum can seamlessly replace platinum, performing tasks once exclusive to this precious metal, particularly in the chemical, electronic, and electrical sectors.
In military applications, tantalum is ingeniously manufactured into capacitors, specifically designed for specialized and high-performance equipment.
A remarkable 50% of the world's tantalum production is channeled into making tantalum capacitors, highlighting its critical role in modern technology.
We proudly provide a Certificate of Analysis (COA) upon request, ensuring complete transparency and quality assurance for our valued clients.


Changsha Xinkang Advanced Materials Co., Ltd (XK) is a globally esteemed company specializing in the research, development, manufacturing, and sales of cutting-edge materials. We offer high-purity materials, customized alloys, compounds, and a vast array of complex synthetic materials to research institutions and high-tech enterprises around the world. Our core expertise lies in high-purity metals, high-purity compounds, rare-earth metals, powder materials, coated substrates, and various other specialized materials.
We adhere to standards such as ASTM/B, ASME SB, AMS, DIN, JIS, and accommodate other customer-specific requirements. Our products
are widely utilized in critical industries such as petrochemical, aerospace and aviation, shipbuilding, energy, medical,
military, electronics, environmental protection, machinery and instruments, metallurgy, automotive, and
numerous other sectors, ensuring broad applicability and high performance.
Our state-of-the-art factory, located in Changsha, Hunan, spans an impressive 4000 square meters and is certified
under the ISO 9001:2015 quality management system and the ISO 14001:2015 environmental management
system. Equipped with advanced technology and a team of skilled technicians, we ensure
superior quality using instruments such as carbon-sulfur analyzers, spectrometers, flaw detectors, cupping
machines, and stiffness testers. Our professional technicians, experienced workers, and sophisticated equipment
enable us to deliver first-class products and services. Our offerings are exported to the USA, Europe, the Middle
East, Japan, Korea, Singapore, India, and Kenya. Our exceptional quality, competitive pricing, timely delivery, and
outstanding after-sales service have earned us high praise and loyalty from our customers.
At Changsha Xinkang Advanced Materials Co., Ltd., we are unwavering in our commitment to achieving customer satisfaction through our relentless pursuit of excellence.
No matter the order volume or size, our dedicated team is here to surpass your expectations. With extensive experience, we ensure precision in meeting all your requirements.




Standard Export Packaging: Our products are meticulously vacuum-sealed to ensure ultimate protection inside. Outside, they are securely housed in sturdy export cartons or robust wooden cases to provide additional security.
We offer a range of versatile shipping options, including FedEx, DHL, UPS, and TNT express, guaranteeing that your order arrives promptly and safely.
For shipments with a gross weight of ≤100KG, express services are available. For larger shipments of ≥100KG, we collaborate with you to determine the most efficient shipping method.

1. Are you a trading company or manufacturer?
Xinkang: We are a professional manufacturer with over a decade of expertise in this specialized field.
2. How long is your delivery time?
XinKang: For regular sizes or samples, we are ready to ship within 3-5 days. For batch quantities, the delivery time is approximately 15 days.
3. Do you have a Minimum Order Quantity (MOQ)?
XinKang: No, we support sample orders with no MOQ requirement.
4. What are your payment methods?
XinKang: We accept a range of payment methods including T/T in advance, PayPal, and Western Union.
We warmly welcome you to contact us at any time for any inquiries or assistance!