Pure tungsten and cemented tungsten carbide are different materials. Their weight per cubic inch is not interchangeable, even when a purchasing conversation shortens both names to tungsten.
Use the density and weight calculator for the estimate, with the grade density and dimensions identified.
Compare equal volumes, not similar-looking parts
For any material, one cubic inch weighs its density expressed in lb/in3. Using 19.3 g/cm3 as an approximate room-temperature reference for pure tungsten gives about 0.6973 lb/in3. Using an illustrative cemented-carbide density of 14.5 g/cm3 gives about 0.5238 lb/in3. Neither number should replace the supplier data for an actual grade or tungsten alloy.
| Equal 1 in3 sample | Assumed density | Calculated mass |
|---|---|---|
| Pure tungsten reference | 19.3 g/cm3 | 0.6973 lb |
| Illustrative cemented carbide | 14.5 g/cm3 | 0.5238 lb |
At equal volume, this illustrative carbide sample is about 25% lighter than the pure-tungsten reference. The percentage changes with grade. A thinner carbide replacement may weigh less for a second reason: its geometry is different.
What to specify on the purchase request
State whether the material is pure tungsten, a tungsten heavy alloy, or cemented tungsten carbide. Include the grade designation and density source. Then provide the dimensions and quantity. This prevents a correct formula from being applied to the wrong material.
Material reference: Royal Society of Chemistry tungsten data.
For mixed-unit prints, check the density conversion steps before calculating mass.
Use the blank-weight and packaging examples to separate net material mass from estimated shipping weight.
Send the drawing, application and quantity through the RFQ form when the requirements are ready for review.
Product questions? Contact Michael Douglas, Extramet Products product expert and Sales and Marketing contact.