Pure Tungsten Tube

Tungsten pipes are usually formed by machining the forged tungsten bars. We can also manufacture tungsten pipe targets (tungsten rotating targets) forged and reshaped after sintering or subjected to hot isostatic pressing.

We can ensure high-temperature resistance and mechanical strength of materials. We has in-depth understanding on the processing of tungsten-molybdenum materials and is guaranteed by exquisite CNC equipment, so meet the requirements of customers on the tolerance of concentricity and equal size, and tungsten pipes with larger differences of diameter-height ratio can be manufactured.

Ultra-high melting point: 3422°C, suitable for extreme high temperature environments (such as molten metal, plasma equipment).

High density: 19.25 g/cm³, provides good radiation shielding (used in nuclear industry or medical equipment).

High temperature strength: can still maintain mechanical properties at high temperatures, better than most metals.

Corrosion resistance: resistant to acid and alkali corrosion (except for strong oxidizing environments), suitable for chemical equipment.

Low thermal expansion coefficient: good dimensional stability at high temperatures, but brittle and difficult to process.

High temperature furnace parts: heating elements, heat shields, thermocouple sleeves.

Semiconductors and photovoltaics: LPCVD furnace tubes, MOCVD reactor liner.

Electrovacuum devices: microwave tubes, X-ray tube anodes (high heat dissipation required).

Nuclear industry: nuclear fuel cladding tubes, isotope containers (low neutron absorption).

Military and aerospace: rocket nozzles, high temperature gas ducts.

Medical equipment: radiotherapy collimators, CT targets.

Powder metallurgy: isostatic pressing of tungsten powder → high temperature sintering (above 2000°C) → machining (turning/grinding).

Chemical vapor deposition (CVD): used for ultra-thin or complex shapes, with higher purity but expensive.

Plastic processing: hot extrusion or rotary forging (need to be heated to plastic temperature), followed by annealing to eliminate stress.

1. What are the main characteristics of pure tungsten tubes?
Ultra-high melting point (3422°C), suitable for extreme high temperature environments.

High density (19.25 g/cm³), providing excellent radiation shielding capabilities.

High temperature strength, maintaining structural stability above 2000°C.

Corrosion resistance, resistant to most acid and alkali erosion (except strong oxidizing media such as molten nitrates).

High brittleness, difficult to plastically process at room temperature, requiring hot processing (>1000°C).

2. In what fields are pure tungsten tubes commonly used?
High temperature industry: heating furnace elements, thermocouple protection tubes.

Semiconductor equipment: MOCVD/LPCVD reactor liner, wafer carrier.

Electric vacuum devices: X-ray tube anode, microwave tube components.

Nuclear engineering: nuclear fuel cladding tubes, isotope containers.

Military and aerospace: rocket nozzles, high-temperature gas ducts.

3. Can pure tungsten tubes be processed into complex shapes?
Yes, but it is difficult:

Cold processing: almost impossible (risk of brittle fracture).

Hot processing: needs to be heated to plastic temperature (>1000°C) for turning, drilling or swaging.

CVD process: suitable for complex thin-walled structures, but the cost is high.

Suggestion: Provide drawings directly to suppliers to avoid self-processing later.

4. How to connect or weld pure tungsten tubes?
Welding method:

TIG welding (inert gas protection), use tungsten-rhenium alloy welding wire to reduce cracks.

Electron beam welding: high-precision welding in a vacuum environment, suitable for thin-walled tubes.

Note: Annealing is required after welding to eliminate stress and prevent cracking.

5. Are you a factory ?
Yes, we are factory but we generally use our trading company to handle the business abroad. It will be convenient to receive the remittance and arrange the shipment.

6. What is the MOQ
A: Depends on quantity, generally, no MOQ limit.

7. How to pay for it?
A: A bank transfer (T/T) will be acceptable.

8. What is the delivery time?
A: around 7-20 days which depends on the quantity and production.

9. What is kind of the package?
A: generally, we use carton case or plywood case and with protective material inside to ensure the save of cargo.

10. What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.

11.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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