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
- Blank weight can be calculated before final grinding if oversize dimensions are known.
- Shipping estimates should use total blank weight plus packaging assumptions.
- RFQ weight estimates should identify grade and dimensional basis.
| Estimate type | Use dimensions from | Best for |
|---|---|---|
| Material planning | Oversize blank | Cost and yield |
| Shipping | Actual blank or finished part | Freight planning |
| Finished part | Final drawing | Assembly and balance |
Why blank weight matters early
Carbide is dense, so weight affects material cost, freight, handling, and fixture design. Estimating weight early helps avoid surprises once drawings move into purchasing.
Examples should be tied to grade
Two blanks with the same size can weigh differently if one uses a different binder percentage or grade family. That is why grade-specific density improves estimating.
Use weight as a planning tool
Weight is useful, but it should not drive grade selection by itself. Wear mode, toughness, corrosion, geometry, and tolerance remain the real engineering drivers.
What to Include in an RFQ
- blank dimensions
- grade density
- quantity
- shipping and packaging needs
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
Should I estimate blank weight or finished weight?
Use both when they answer different questions. Blank weight helps material planning; finished weight helps assembly and shipping.
Does grind allowance affect weight?
Yes. Oversize blanks weigh more than finished parts because extra stock is removed during grinding.
Can Extramet estimate shipping weight?
A complete RFQ with grade, size, and quantity allows a better shipping estimate.
