Product Overview
Tungsten tube is manufactured from high-purity tungsten (≥99.95%) through isostatic pressing, intermediate frequency sintering, and precision machining processes. With a sintered density of approximately 18.2-18.3 g/cm³ (up to 19.3 g/cm³ for some alloys) and a melting point of 3420°C, it maintains structural integrity and dimensional stability in extreme high-temperature environments.
Chemical Properties
|
Parameter |
Specification |
Description |
|
Purity |
≥99.95% |
High purity ensures minimal impurities and contamination |
|
Density |
18.2-18.3 g/cm³ (sintered) |
Dependent on annealing and alloying |
|
Corrosion Resistance |
Essentially inert to strong acids, alkalis, and salt solutions |
Suitable for chemical processing and nuclear applications |
|
Thermal Expansion Coefficient |
4.98 × 10⁻⁶ K⁻¹ (1600°C) |
Low expansion prevents dimensional changes at high temperatures |
|
Specific Heat Capacity |
0.16 J/(g·°C) (1400°C) |
Affects thermal storage and dissipation characteristics |
|
Electrical Resistivity |
0.054 μΩ·m (room temperature) |
Varies with temperature increase |
Mechanical Properties
|
Parameter |
Specification |
Description |
|
Tensile Strength |
~343 MPa |
High strength prevents fracture under high pressure and temperature |
|
Elastic Modulus |
~400 GPa |
High rigidity suitable for mechanical loading |
|
Hardness |
~900 HV (pure tungsten) |
High hardness provides wear resistance |
|
High-Temperature Creep Resistance |
Maintains shape above 2000°C |
Suitable for long-term high-temperature furnace components |
|
Machining Allowance |
Precision machining (turning, milling, grinding, wire cutting) |
High dimensional accuracy through isostatic pressing, sintering, and machining |
Standard Specifications
Size Range: Diameter: 6-200 mm, Wall thickness: 0.5-10 mm, Length: 50-400 mm (customizable)
Applicable Standards: GB/T 4187-1984 (tungsten rods), ASTM F288-90, ISO 9001:2015
Surface Treatment: Ground, polished, as-sintered, welded ends (adaptable to various environments)
Applications
|
Application Field |
Typical Uses |
Description |
|
High-Temperature Furnaces & Thermocouple Protection |
Thermocouple protection tubes, sapphire crystal growth furnaces, high-temperature sintering furnace supports |
Maintains strength and low contamination below 2500°C in vacuum or inert atmospheres |
|
Crystal Growth |
Sapphire crystal growth furnaces, quartz continuous melting furnace containers and supports |
Low thermal expansion and high thermal conductivity ensure uniform temperature fields |
|
Aerospace & Nuclear Energy |
Engine nozzles, combustion chambers, nuclear reactor components |
Extreme heat resistance, corrosion resistance, and mechanical strength |
|
Electronics & Vacuum Technology |
High-voltage capacitors, vacuum electron tubes, electron beam equipment structures |
Low evaporation rate and excellent vacuum thermal reflection properties |
|
Medical & Radiation Protection |
Medical radiation shielding tubes, radiation therapy equipment |
High density provides superior radiation shielding |
|
Other Applications |
Induction heating elements, thermal insulation layers, industrial high-temperature containers |
Combines corrosion and wear resistance |
Product Advantages
Exceptional Temperature Resistance: Operating temperatures up to 2500°C (special alloys withstand >3000°C)
Excellent Mechanical Strength: Tensile strength ~343 MPa with high elastic modulus, resistant to pressure and creep
Low Thermal Expansion Coefficient: 4.98 × 10⁻⁶ K⁻¹ at 1600°C, ensuring dimensional stability
High Thermal Conductivity: ~300 W/(m·K) facilitates rapid heat dissipation and uniform temperature distribution
Chemical Inertness: Virtually non-corrosive in strong acids, alkalis, and salt solutions with minimal contamination
High Density & Radiation Shielding: Density ≈18.2-19.3 g/cm³ suitable for radiation protection and particle beam shielding
High Machining Precision: Custom configurations including seamless, welded, threaded, and precision-machined forms
Selection & Usage Guidelines
Operating Temperature: Recommended below 2500°C; higher temperatures accelerate creep and microstructural changes
Thermal Expansion Matching: Consider coefficient differences when combining with other metals (e.g., stainless steel, molybdenum) to prevent stress concentration
Machining & Assembly: Use carbide tools or laser/wire cutting due to high hardness; recommend tungsten-molybdenum alloy filler or TIG welding
Corrosion Protection: While inherently corrosion-resistant, surface passivation or coatings may be necessary in high-temperature oxidizing environments
Quality Assurance: Standard testing includes chemical composition (ICP-OES), density, hardness, thermal expansion coefficient, and non-destructive testing (ultrasonic, X-ray) per GB/T 4187-1984
FAQ:
Do you provide samples?
A: Yes, we offer complimentary samples with shipping arranged by the customer. We recommend testing samples or placing trial orders before larger purchases.
Q: How competitive are your prices?
A: Our pricing reflects exceptional value when considering the premium quality and comprehensive service we provide.
Q: What is your quotation turnaround time?
A: Typically 24 hours after inquiry receipt. Urgent requests receive priority handling upon notification.
Q: How do I request custom products?
A: Please share your drawings, images, or samples. We will confirm specifications and promptly initiate production.
Contact:
About STRX Titanium – Why Choose Us?
Premium Materials：We select premium raw materials to ensure quality control from the source.
Rigorous Quality Inspection：Strict quality inspection standards are implemented to ensure 100% compliance with customer requirements.
Customized Solutions：We understand that each industry has unique needs. Our team works closely with clients to tailor products based on specific requirements. We customize all titanium products (color/size, etc.) according to customer drawings or ideas.
Fast Delivery：Advanced production management ensures efficient and prompt delivery from production to shipment.
Expert Support：Gain insights from our dedicated expert team, who provide professional advice and practical assistance. STRX Titanium helps you identify and select the best solutions tailored to your business needs, ensuring optimal results and satisfaction.
STRX Titanium has earned consistent praise from clients for high-quality products and competitive pricing. With strict quality control and professional technical support, we look forward to cooperating with you!
In Summary,STRX Titanium is a leading manufacturer and supplier of titanium products in China. We maintain strong technical partnerships with major domestic and international equipment manufacturers and uphold rigorous quality standards to meet client demands.
If you are looking for a reliable titanium product supplier, please contact us immediately to learn more about our products and services.
Email: info@strx-titanium.com
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