Products Description
Tungsten rod is a cylindrical material made of high-purity tungsten (usually ≥99.95%). With the excellent properties of tungsten metal, it has key applications in high temperature, high wear and special industrial environments.
Type and Size
|
Type |
Swaged Rods |
Straightened Rods after Drawn |
Ground rods available |
|
Size |
Ф2.4~95mm |
Ф0.8~3.2mm |
Chemical Composition
|
Designation |
Tungsten Content |
Impurity Elements Content |
|
|
Total |
Each |
||
|
WAL1, WAL2 |
≥99.95% |
≤0.05% |
≤0.01% |
|
W1 |
≥99.95% |
≤0.05% |
≤0.01% |
|
W2 |
≥99.92% |
≤0.08% |
≤0.01% |
|
Note: Potassium is not counted in impurities content |
|||
Tungsten rod Surface Finish
Black - Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control.
Tungsten content: 99.95%
Size: 2.0mm~100mm diameter Length: 50-2000mm
Features
✅ Ultra-high melting point: 3422°C, excellent high temperature resistance
✅ High density: 19.25 g/cm³, close to the density of gold
✅ Excellent hardness: Mohs hardness 7.5, outstanding wear resistance
✅ Good electrical/thermal conductivity: suitable for electronic and thermal management applications
✅ Low thermal expansion coefficient: 4.5×10⁻⁶/K, good dimensional stability
Applications
Welding industry: TIG welding electrodes (cerium tungsten/thoriated tungsten rods)
Electronic devices: semiconductor supports, X-ray tube anodes
High temperature environments: vacuum furnace heating elements, thermal field components
Military industry and aerospace: armor-piercing cores, rocket nozzles
Medical equipment: radiotherapy collimators, surgical instrument counterweights
Scientific research instruments: synchrotron radiation device components
FAQ of Tungsten rod
1. What are the main characteristics of tungsten rods?
Ultra-high melting point: 3422℃, suitable for extremely high temperature environments
Extremely high density: 19.25g/cm³, close to the density of gold
Excellent hardness: Mohs hardness 7.5, excellent wear resistance
Good electrical and thermal conductivity: electrical conductivity 31%IACS, thermal conductivity 173W/m·K
Low thermal expansion: 4.5×10⁻⁶/K, good dimensional stability
2. What are the main application areas of tungsten rods?
Welding industry: TIG welding electrodes (cerium tungsten/thoriated tungsten electrode rods)
Electronic industry: semiconductor devices, X-ray tube components
High temperature applications: vacuum furnace heating elements, thermal field components
Military industry: armor-piercing cores, rocket nozzles
Medical equipment: radiotherapy equipment, surgical instrument weights
3. What are the international standards for tungsten rods?
ASTM: B777 (standard for sintered tungsten products)
ISO: ISO 6848 (tungsten electrodes for welding)
GB/T: GB/T 3459 (Chinese tungsten rod standard)
4. What is the MOQ?
A: Depends on quantity, generally, no MOQ limit.
5. How to pay for it?
A: A bank transfer (T/T) will be acceptable.
6. What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
7.What is the package?
A: carton case or plywood case.
8. What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
9. What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
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