Industrial-Grade Pure Tungsten Tubes - W1 Model Exclusive Solution
Product specification
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Item |
Details |
|
Inner Diameter Range |
1mm-100mm (standard), special inner diameter (100-200mm) can be customized |
|
Wall Thickness Range |
0.1mm-50mm (standard), special wall thickness (50-80mm) can be customized |
|
Length |
100-3000mm (standard), maximum customizable length up to 6000mm, support cutting on demand |
|
Tolerance Range |
Inner/Outer Diameter Tolerance: ±0.01-0.15mm (classified by precision grade), Wall Thickness Tolerance: ±0.01-0.1mm, customized according to international standard (ASTM B760) or customer requirements |
|
Straightness |
≤0.1mm/m (Precision Grade), ≤0.2mm/m (Standard Grade) |
| Product Name | Pure Tungsten Tubes |
| Brand Name | Yunjie |
| Model | W1 (Exclusive Pure Tungsten Model) |
| Material | Pure Tungsten, Tungsten Content ≥99.95% |
| Process | Powder Metallurgy + Extrusion/Rolling + Vacuum Annealing + Precision Internal & External Machining |
| Density | 19.3g/cm³ |
| Advantages | Extreme High-Temperature Resistance (Melting Point 3410℃), Ultra-High Purity with No Impurities, High Strength and Hardness, Wear and Corrosion Resistance, Excellent Electrical and Thermal Conductivity, Low Thermal Expansion Coefficient, Strong Structural Sealing, High Dimensional Precision |
| Surface Treatment | Ground Surface, Polished Surface, Pickled Surface, Rolled Surface |
| Shape | Seamless Round Tubes, Special-Shaped Tubes (Processed on Demand), Thick-Walled Tubes, Thin-Walled Tubes |
| Processing Services | Precision Cutting, Beveling, Internal & External Cylindrical Grinding, Thread Machining, Welding, CNC Machining |
| Minimum Order Quantity | 1 piece (or 5 kg, calculated according to the actual order) |
Classification
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Classification by Wall Thickness•Thin-Walled Tungsten Tubes (0.1mm-2.0mm): Suitable for scenarios with strict requirements on dimensional precision, lightweight, and sealing performance, such as precision electrode sleeves, micro-sensor catheters, and electronic component packaging tubes.
•Medium-Walled Tungsten Tubes (2.0mm-10.0mm): Applicable to conventional high-temperature fluid transport tubes, high-temperature furnace accessory tubes, and precision instrument protection tubes that need to balance purity, strength, and sealing performance.
•Thick-Walled Tungsten Tubes (10.0mm-50.0mm and above): Suitable for heavy structural tubes, high-temperature and high-pressure vessel tubes, and nuclear industry protection tubes with extremely high requirements for high-temperature resistance, load-bearing capacity, pressure resistance, and purity stability. -
Classification by Structure and Application
Specification Selection Table and Composition Table
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Wall Thickness Range |
Inner/Outer Diameter Tolerance |
Core Characteristics |
Applicable Scenarios |
|
0.1-2.0mm |
Inner/Outer Diameter: ±0.01-0.03mm (Precision Grade); Length according to international standard or customization |
Ultra-thin and precise, smooth internal and external surfaces, ultra-high purity with no impurities, excellent sealing performance, good electrical and thermal conductivity |
Semiconductor manufacturing electrode sleeves, electron tube cathode sleeves, micro high-temperature sensor catheters, medical equipment micro-transport tubes, precision instrument packaging tubes |
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2.0-10.0mm |
Inner/Outer Diameter: ±0.03-0.1mm (High Precision Grade); Length according to international standard or customization |
Qualified purity, moderate strength, wear and corrosion resistance, strong sealing performance, good processability, excellent thermal stability |
High-temperature fluid transport tubes in metallurgical industry, high-temperature furnace heating element protection tubes, chemical corrosion-resistant catheters, new energy equipment conductive sleeves, precision machinery protection tubes |
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10.0-50.0mm |
Inner/Outer Diameter: ±0.1-0.15mm (Standard Grade); Length according to international standard or customization |
Ultra-high purity guarantee, high high-temperature strength, strong load-bearing and pressure resistance, excellent hardness, good deformation resistance |
Aerospace engine high-temperature catheters, heavy machinery high-temperature resistant tubes, high-temperature section tubes of pressure vessels, nuclear industry equipment protection tubes, large high-temperature furnace tubes |
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50.0mm and above |
Inner/Outer Diameter: ±0.15-0.2mm; Length according to international standard or customization |
Ultra-high purity, extreme high-temperature resistance, outstanding impact resistance, stable structure, high density, strong pressure resistance |
High-end high-temperature and high-pressure tubes for national defense and military industry, high-temperature catheters for deep-sea exploration equipment, key structural tubes for large industrial furnaces, customized high-temperature resistant tubes for heavy equipment |
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Grade |
W |
Impurity Content, Max. (≤) |
Impurity Content, Max. (≤) |
Impurity Content, Max. (≤) |
Impurity Content, Max. (≤) |
Impurity Content, Max. (≤) |
Impurity Content, Max. (≤) |
|
|
|
Fe |
Ni |
Si |
C |
N |
Residuals |
|
W1 |
≥99.95 |
0.01 |
0.01 |
0.01 |
0.01 |
0.01 |
0.03 |
Production Process
- Raw Material Preparation: Select high-purity tungsten concentrate, prepare high-purity tungsten powder (purity ≥99.95%) through multiple purification processes such as roasting and reduction, strictly control powder particle size, fluidity, and purity, laying the foundation for tube quality.
- Powder Forming: Mix high-purity tungsten powder with a special binder in a precise ratio, press into tubular blanks through molding, isostatic pressing, and other methods, ensuring uniform blank density, complete structure, and no obvious defects.
- Sintering Treatment: Put the formed tube blanks into a high-temperature sintering furnace, sinter under hydrogen protection or vacuum environment to remove binders and achieve densification, forming high-purity tungsten tube blanks, improving material density and strength.
- Pressure Processing: According to the tube wall thickness and performance requirements, select extrusion or rolling process; extrusion is suitable for thick-walled tube processing to improve material density and structural uniformity; rolling is suitable for thin and medium-walled tube production to precisely control inner diameter, outer diameter, and wall thickness precision.
Production Process
- Vacuum Annealing: Put the processed tungsten tubes into a vacuum annealing furnace, perform heat preservation treatment at a specific temperature to eliminate processing internal stress, optimize grain structure, improve material toughness, plasticity, and high-temperature stability, and avoid subsequent processing deformation.
- Precision Machining: Through internal & external cylindrical grinding, polishing, straightening, beveling, and other processes, precisely control the inner diameter, outer diameter, wall thickness, and straightness of the tungsten tube, optimize internal and external surface finish, and perform customized processing such as threads and special shapes on demand to meet customers' precise needs.
- Finishing and Inspection: Through dimensional measurement, surface flaw detection, sealing test, non-destructive testing (ultrasonic, radiation testing), purity detection, and other steps, ensure that product dimensions are precise, surface is qualified, purity meets standards, sealing performance is good, and there are no internal defects, with material inspection report and quality certificate attached.
Send Inquiry
As a professional metal tube solution provider, Baoji Yunjie focuses on the R&D and supply of high-quality pure tungsten tubes (W1 model) and a full range of metal tubes, rods, plates, and strips such as titanium, zirconium, nickel, aluminum, tantalum, and cobalt. It supports customized processing on demand and strictly controls quality throughout the process. If you have procurement needs or technical consulting for W1 model pure tungsten tubes, please feel free to contact us, and we will work together to create new value for high-end manufacturing!