Welcome to Baoji Freelong New Material Technology Development Co., Ltd., where we specialize in manufacturing premium tantalum R05240 wires designed for your most demanding applications. Our R05240 Ta–2.5W alloy wires deliver exceptional performance in extreme temperature environments, making them the perfect choice for aerospace, energy, and high-temperature furnace applications. With diameters ranging from 0.3mm to 2mm, these tantalum wires offer superior reliability and durability.
Our tantalum R05240 wires meet the highest industry standards to ensure optimal performance in your applications:
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| Wire, Diameter, inch (mm) | |||
| Grade | Diameter,inch (mm) | tensile strength,psi (MPa),≥ | Elongation, %, ≥ |
| RO5200/RO5400 | 0.010(0.254)~0.0149(0.379) | 35000 (241) | 10 |
| 0.015(0.381)~0.0249(0.633) | 35000 (241) | 15 | |
| 0.025(0.635)~0.124(3.14) | 30000 (207) | 20 | |
| RO5252 | 0.010(0.254)~0.0149(0.379) | 40000 (276) | 5 |
| 0.015(0.381)~0.0249(0.633) | 40000 (276) | 10 | |
| 0.025(0.635)~0.124(3.14) | 40000 (276) | 15 | |
| RO5255 | 0.010(0.254)~0.0149(0.379) | 70000 (482) | 5 |
| 0.015(0.381)~0.0249(0.633) | 70000 (482) | 10 | |
| 0.025(0.635)~0.124(3.14) | 70000 (482) | 15 | |
| RO5240 | 0.010(0.254)~0.0149(0.379) | 40000 (276) | 10 |
| 0.015(0.381)~0.0249(0.633) | 40000 (276) | 15 | |
| 0.025(0.635)~0.124(3.14) | 40000 (276) | 20 | |
Your applications demand materials that can withstand extreme conditions. Our R05240 tantalum wires excel in environments where other materials fail, maintaining structural integrity at temperatures up to 2600°C.
These wires demonstrate outstanding creep resistance, ensuring long-term dimensional stability under sustained high-temperature loads. This characteristic makes them ideal for critical applications where material deformation is unacceptable.
The tungsten addition in our R05240 alloy significantly improves oxidation resistance compared to pure tantalum, extending service life in oxidizing environments.
We maintain tight tolerances on wire diameter, ensuring consistent performance and easy integration into your manufacturing processes.
Our tantalum R05240 wires serve critical roles in spacecraft propulsion systems, satellite components, and high-performance aircraft engines where reliability is paramount.
These wires are essential components in nuclear reactors, solar panel manufacturing equipment, and advanced energy storage systems.
Manufacturers rely on our wires for heating elements, thermocouples, and structural components in vacuum furnaces and specialty heat treatment equipment.
The semiconductor industry uses these wires for specialized applications requiring exceptional purity and thermal stability.
Located in Baoji City—China's Titanium Valley—our state-of-the-art facility employs advanced metallurgical processes to produce tantalum R05240 wires with consistent quality:
We source only the highest-grade tantalum and tungsten materials, ensuring purity levels that exceed industry requirements.
Our controlled atmosphere melting process creates homogeneous Ta-2.5W alloy with uniform composition throughout.
Using precision drawing techniques, we achieve exact diameter specifications while maintaining optimal mechanical properties.
Every batch undergoes comprehensive testing to verify compliance with ASTM B365 standards and your specific requirements.
We implement rigorous quality control measures throughout our production process:
With years of experience in refractory metals, we understand your unique requirements and deliver solutions that exceed expectations.
We've built trusted relationships with clients in Australia, Korea, Germany, US, UK, Malaysia, Middle East, Taiwan, and beyond.
Our philosophy centers on quality and service excellence. We never compromise on quality and take full responsibility for meeting your specifications.
Located in China's titanium valley, we offer competitive pricing without sacrificing quality or performance.
We understand that your applications may require specific wire configurations. Our OEM services include:
Our engineering team works closely with you to develop tailored solutions that meet your exact specifications.
Ready to discuss your tantalum wire requirements? Our team is here to help:
Email: jenny@bjfreelong.com
WhatsApp: 8613571190943
Contact us today for detailed specifications, pricing information, or technical consultations. We're committed to providing you with the highest quality tantalum R05240 wires and exceptional customer service.
Trust Baoji Freelong New Material Technology Development Co., Ltd. for all your refractory metal needs. Let us help you achieve success in your most challenging applications.










Baoji Freelong New Material Technology Development Co., Ltd loated in Baoji City--China's Titanium Valley,we are mainly doing Zirconium,Titanium,Nickel,Niobium,Tantalum etc metal material and other alloy's produce,OEM and Sales.and also exporting the goods what we make. we have a lot of trustful clients and partner.and also we were authority by some firms.At present,we were build our relationship with Australia,Korea,German,US,UK,Malaysia,AZ,Middle East,Taiwan,Etc. Our company always take the quality and service as our responsibility,We always get close even match the quality what our customer wanted and as for quality,we never say no and no reason for quality failure.
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WhatsApp&Wechat: 86 13571190943
E-mail:jenny@bjfreelong.com
Address: No.188. Gaoxin Ave, Baoji City, Shannxi, China.

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