CNC Machining in Pure Tungsten

Pure Tungsten is an ultra-high-density refractory metal designed for extreme temperature and high-energy environments. InstaVoxel provides precision CNC machining solutions for Tungsten components where thermal stability, mass density, and structural integrity are mission-critical.

Advantages of Pure Tungsten

Pure Tungsten (W) has the highest melting point of any metal and maintains exceptional strength at elevated temperatures. These properties make it indispensable in aerospace, semiconductor, defense, and high-temperature industrial systems.

Key Features

Extremely high melting point (> 3,400 °C)

Very high density (≈ 19.3 g/cm³)

Excellent thermal stability at extreme temperatures

Low vapor pressure for vacuum applications

Available Pure Tungsten Specifications

The following table shows common Pure Tungsten. If you have any other alloy requirements, please contact us.

Pure Tungsten

Tensile Strength

Elongation at Break

Hardness

Density

80,000 PSI

~1%

HV 400

0.695 lb/in³
(9.25 g/cm³)

Pure Tungsten Surface Finishes

The following table shows common surface finishes for Pure Tungsten.

Bead Blast

Polishing

Brushing

Pure Tungsten FAQs

Do you support prototype and low-volume Tungsten parts?

Absolutely. InstaVoxel supports both prototype and low-volume production for Tungsten components, with engineering support during design evaluation.
Can Tungsten be used in vacuum or semiconductor environments?

Yes. Tungsten’s low vapor pressure and thermal stability make it well-suited for high-vacuum and semiconductor processing applications.
What tolerances can be achieved when machining Tungsten?

Typical CNC milling and turning tolerances are around ±0.01 mm, depending on part geometry and feature size. Critical features are reviewed case-by-case.
Is Pure Tungsten difficult to machine?

Yes. Tungsten is extremely hard and brittle at room temperature, making it challenging to machine. Specialized tooling, conservative cutting strategies, and stress-controlled processes are required to prevent cracking or chipping.
What is Pure Tungsten commonly used for?

Pure Tungsten is used in extreme-temperature and high-density applications such as aerospace counterweights, semiconductor ion implantation components, and high-temperature furnace hardware.