Applications by Material

Tungsten (W)

Heat resistance · High Thermal Conductivity · Low Thermal Expansion · High Density

We introduce machining examples of tungsten
Tungsten is widely used for applications that take advantage of its high heat resistance and excellent radiation shielding properties.
Machining is difficult due to tool wear and the risk of cracking and chipping, requiring proprietary cutting technology
We have established machining technology based on many years of experience.
Materials are stocked in-house, enabling short lead times.

Typical properties of tungsten

Item Purity
(%)		 Bulk Density
(g/㎤)		 Vickers Hardness
(GPa)		 Young’s Modulus
(GPa)		 Melting Point
(℃)		 Recrystallization Temperature
(℃)		 Coefficient of Thermal Expansion
(×10-⁶/℃)		 Thermal Conductivity
(W/(m·K))
Chemical Formula
W 99.95– 19.3 4.2 403 3,422 1,150–1,350 4.5 168

Applications Utilizing Material Properties

Item Features Applications
High Heat Resistance
Low Thermal Expansion
High Thermal Conductivity 		· Very high melting point of 3,422°C, suitable for high-temperature use (non-oxidizing atmosphere)
· Low Thermal Expansion with minimal warping and distortion
· Thermal expansion close to ceramics such as AlN and Al2O3
· High thermal conductivity with efficient heat transfer 		· Components for High-Temperature Use
· Heaters and terminal components
· Components requiring high thermal conductivity
· Heat dissipation applications
· Radiation shielding components
· Components requiring mass
Radiation Shielding · Radiation shielding capability
High Density · High density of 19.3, resulting in high weight per unit volume
Chemical Resistance

Machinable Sizes

Item Sizes (mm) Item Sizes (mm)
Plate Dimensions 400 × 600 × 30 Hole Diameter Φ0.1–
Rod Dimensions Φ100 × 300 Hole Depth –300
Grooves Width 0.2– Number of Holes –300
Steps (Protrusions / Recesses) –100 Threads M2–

Machining examples of tungsten

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