This guide supports Extramet’s tungsten carbide density and weight calculator by answering the practical engineering and purchasing questions that usually come before an RFQ.
Quick Answer
- Pure tungsten and cemented tungsten carbide are not the same material.
- Carbide density depends on binder and grade, so use grade-specific values.
- Weight-per-cubic-inch conversions are useful only when the density basis is clear.
| Question | Best answer | Why |
|---|---|---|
| Pure tungsten weight? | Use pure tungsten density | Different from cemented carbide |
| Carbide part weight? | Use grade density | Binder changes density |
| RFQ estimate? | Use drawing plus grade | Reduces assumptions |
Do not mix tungsten and tungsten carbide
Searchers often use tungsten and tungsten carbide interchangeably, but engineering estimates should not. Cemented carbide includes a binder phase and has properties that differ from pure tungsten.
Why cubic-inch conversions are popular
Buyers and engineers working from inch drawings often need a quick way to estimate pounds. The conversion is straightforward once the correct density is selected.
Where the calculator helps
A calculator is useful for rough planning, but it works best when paired with real grade data and the actual geometry from the part print.
What to Include in an RFQ
- material type
- grade density
- geometry and units
- finished vs oversize dimensions
Related Extramet Resources
Reviewed for technical accuracy: This supporting article was prepared to align with Extramet’s tungsten carbide manufacturing, grinding, inspection, and quality capabilities in Latrobe, Pennsylvania.
Frequently Asked Questions
Is tungsten carbide the same weight as tungsten?
No. Cemented tungsten carbide has binder content and usually differs from pure tungsten in density.
Why do search results show different density numbers?
They may be using pure tungsten, theoretical tungsten carbide, or cemented carbide grades.
What number should I use for Extramet parts?
Use the density for the selected Extramet grade whenever the grade is known.
