Tungsten Rod
Tungsten Rod
Tungsten Rod
Tungsten and molybdenum boats and crucibles for vacuum deposition and high-temperature melting. They are used where the vessel must not react with molten metal, and are built to your required shape and capacity.
Tungsten and molybdenum boats and crucibles for vacuum deposition and high-temperature melting. They are used where the vessel must not react with molten metal, and are built to your required shape and capacity.
Tungsten and molybdenum boats and crucibles for vacuum deposition and high-temperature melting. They are used where the vessel must not react with molten metal, and are built to your required shape and capacity.
Applied parts
Applied parts
Used as the evaporation source in vacuum coaters, the melting crucible in high-temperature furnaces and the vessel in crystal growth equipment. Material and shape are designed around what it will hold and at what temperature.
Used as the evaporation source in vacuum coaters, the melting crucible in high-temperature furnaces and the vessel in crystal growth equipment. Material and shape are designed around what it will hold and at what temperature.
Diameter, length and surface condition are set by the application. Tell us the specification you need and we will confirm and reply.
Diameter, length and surface condition are set by the application. Tell us the specification you need and we will confirm and reply.
KEY FEATURES
Straightness and structure decide performance
Rod has to stay straight for the next operation to hold its dimensions.
Drawing direction and residual stress govern the straightness and the distortion after machining.
High melting point · high-temperature strength
High Temperature Strength
Tungsten 3,422 °C, molybdenum 2,623 °C. They hold their shape at high temperature, which is why they are used as material for electrodes and jigs.
Straightness · diameter tolerance
Straightness & Tolerance
After forging and drawing, straightening and centerless grinding hold the straightness and the diameter tolerance.
Machinability
Machinability
It is cut after stress relief, so it does not warp after machining. The geometry is produced by turning and EDM.
Melting points by material
Melting point °C. The higher the figure, the higher the temperature at which the geometry holds.
Why straightness matters
Bent rod makes dimensions wander during cutting, and an EDM electrode made from it has a different gap at every point.
Residual stress
With stress still in it, the rod warps the moment it is cut. Heat treatment relieves it so the dimensions hold.
KEY FEATURES
Straightness and structure decide performance
Rod has to stay straight for the next operation to hold its dimensions.
Melting points by material
Melting point °C. The higher the figure, the higher the temperature at which the geometry holds.
Drawing direction and residual stress govern the straightness and the distortion after machining.
Tungsten 3,422 °C, molybdenum 2,623 °C. They hold their shape at high temperature, which is why they are used as material for electrodes and jigs.
Drawing direction and residual stress govern the straightness and the distortion after machining.
High melting point · high-temperature strength
High Temperature Strength
Tungsten 3,422 °C, molybdenum 2,623 °C. They hold their shape at high temperature, which is why they are used as material for electrodes and jigs.
Straightness · diameter tolerance
Straightness & Tolerance
After forging and drawing, straightening and centerless grinding hold the straightness and the diameter tolerance.
Machinability
Machinability
It is cut after stress relief, so it does not warp after machining. The geometry is produced by turning and EDM.
Melting points by material
Melting point °C. The higher the figure, the higher the temperature at which the geometry holds.
Why straightness matters
Bent rod makes dimensions wander during cutting, and an EDM electrode made from it has a different gap at every point.
Residual stress
With stress still in it, the rod warps the moment it is cut. Heat treatment relieves it so the dimensions hold.
DESIGN PRECISION
The diameter is set to the application
In rod, diameter tolerance and straightness are what distinguish the product.
In the same rod, changing the surface condition and the tolerance changes how much machining the next operation needs.
Diameter tolerance
The grinding grade is raised to reduce later machining.
Length cutting
Cut to the length required with the end faces machined.
Material selection
Tungsten where high-temperature strength is needed, molybdenum where machinability is.
We do not pick a specification, we develop it with you. (Give us the application and the finishing conditions, and we will work out the tolerances with you.)
DESIGN PRECISION
The diameter is set to the application
In rod, diameter tolerance and straightness are what distinguish the product.
In the same rod, changing the surface condition and the tolerance changes how much machining the next operation needs.
Diameter tolerance
The grinding grade is raised to reduce later machining.
Length cutting
Cut to the length required with the end faces machined.
Material selection
Tungsten where high-temperature strength is needed, molybdenum where machinability is.
We do not pick a specification, we develop it with you. (Give us the application and the finishing conditions, and we will work out the tolerances with you.)
APPLICATIONS
Applications
The fields where rod is used. Diameter and surface differ by application.
APPLICATIONS
Applications
The fields where rod is used. Diameter and surface differ by application.
LEAD TIME
Fabrication and Lead Time
This product is made to your drawing. Here is the process, step by step.
STEP 01
Drawing received
Send us the material, diameter, length and surface condition.
Reply within 1 daySTEP 02
Specification review
We review the diameter tolerance and straightness and propose a finishing method.
2 – 4 daysSTEP 03
Forging · drawing · machining
Machined to the required diameter and cut to length.
By agreement, depending on the production scheduleSTEP 04
Inspection · delivery
Diameter and length are measured, and the part ships with a test report. Repeat orders to the same drawing skip the review stage.
By agreement, depending on the production scheduleMinimum quantity
From small quantities
Varies with diameter and length.
Standard lead time
About 2 – 3 weeks
From drawing approval. The smaller the diameter, the more drawing stages.
Supplied with it
Test report
Diameter and length measurements are sent with the delivery.
LEAD TIME
Fabrication and Lead Time
This product is made to your drawing. Here is the process, step by step.
Drawing received
Send us the material, diameter, length and surface condition.
From small quantities
Varies with diameter and length.
About 2 – 3 weeks
From drawing approval. The smaller the diameter, the more drawing stages.
Test report
Diameter and length measurements are sent with the delivery.
STEP 01
Drawing received
Send us the material, diameter, length and surface condition.
Reply within 1 daySTEP 02
Specification review
We review the diameter tolerance and straightness and propose a finishing method.
2 – 4 daysSTEP 03
Forging · drawing · machining
Machined to the required diameter and cut to length.
By agreement, depending on the production scheduleSTEP 04
Inspection · delivery
Diameter and length are measured, and the part ships with a test report. Repeat orders to the same drawing skip the review stage.
By agreement, depending on the production scheduleMinimum quantity
From small quantities
Varies with diameter and length.
Standard lead time
About 2 – 3 weeks
From drawing approval. The smaller the diameter, the more drawing stages.
Supplied with it
Test report
Diameter and length measurements are sent with the delivery.
HANDLING
Handling precautions
These apply to refractory metals in general. Service life depends heavily on how the parts are handled.
01
01
Do not touch the parts with bare hands after unpacking. Oil from fingerprints carbonizes at high temperature and becomes a contaminant.
02
02
The material is weak against impact and bending. Tungsten is brittle at room temperature and can crack if dropped.
03
03
Do not heat above 500°C in air; oxidation accelerates sharply. Always use the parts in a vacuum or an inert atmosphere.
04
04
Avoid rapid heating and cooling. On first use, we recommend pre-heating (aging) at low current.
05
05
Store indoors in a dry place and keep the moisture-barrier packaging intact.
If your installation or operating conditions are unusual, our engineers will review them in advance. Send a drawing or your process conditions and we will start by selecting the right material with you.
If your installation or operating conditions are unusual, our engineers will review them in advance. Send a drawing or your process conditions and we will start by selecting the right material with you.
If your installation or operating conditions are unusual, our engineers will review them in advance. Send a drawing or your process conditions and we will start by selecting the right material with you.
Advanced material supply and machining,
a global material leader
From raw material to finished part, the best solution seen from your side.
Weekdays 9:00 AM – 5:30 PM (alternate Fridays until 4:00 PM; closed weekends and public holidays)
Advanced material supply and machining,
a global material leader
From raw material to finished part, the best solution seen from your side.
Weekdays 9:00 AM – 5:30 PM (alternate Fridays until 4:00 PM; closed weekends and public holidays)
KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
Privacy Policy
Terms of Use
Cookie settings
KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
Privacy Policy
Terms of Use
Cookie settings
KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
Privacy Policy
Terms of Use
Cookie settings