Tungsten Weight Chart by Size and Dimension
This tungsten weight chart lists theoretical weights in kilograms for round rods, so engineers and buyers can estimate material requirements quickly. Below the tables you will also find the formula for working out the weight of any rod or plate yourself.
How Heavy Is Tungsten?
Tungsten is one of the densest natural elements. Its density is about 19.25 grams per cubic centimeter (g/cm³), which puts it close to gold and far above iron. You can verify the figure on the tungsten data page at periodictable.com.
To compare:
- Tungsten: 19.25 g/cm³
- Gold: 19.32 g/cm³
- Lead: 11.34 g/cm³
- Iron: 7.87 g/cm³
That is why even a small piece of tungsten feels surprisingly heavy in your hand.
Tungsten Rod Weight Chart (kg)
Weights below are calculated at 19.25 g/cm³ for pure tungsten round rod.
| Rod Diameter | Weight at 150 mm Length (kg) | Weight at 200 mm Length (kg) |
|---|---|---|
| 6 mm | 0.082 | 0.109 |
| 8 mm | 0.145 | 0.194 |
| 10 mm | 0.227 | 0.302 |
| 12 mm | 0.327 | 0.435 |
| 14 mm | 0.444 | 0.593 |
| 16 mm | 0.581 | 0.774 |
| 20 mm | 0.907 | 1.210 |
| 25.4 mm | 1.463 | 1.951 |
How to Calculate Tungsten Weight
Every figure in this chart comes from one rule: weight equals volume multiplied by density.
Round rod: weight (kg) = 0.7854 × diameter² × length × density ÷ 1,000,000, with diameter and length in mm and density in g/cm³.
Plate or sheet: weight (kg) = length × width × thickness × density ÷ 1,000,000, with all dimensions in mm.
For example, a 10 mm × 200 mm tungsten rod weighs about 0.30 kg. A plate measuring 100 mm × 50 mm × 10 mm weighs about 0.96 kg. To estimate a different grade, swap in its density.
Tungsten Copper 80/20 Round Bar Weight Chart (kg)
Tungsten copper is lighter than pure tungsten because it contains 20% copper. The weights below are calculated at about 15.5 g/cm³ for 200 mm lengths. Actual density varies slightly by grade and process.
| Round Bar Size | Weight (kg) |
|---|---|
| 4 mm × 200 mm | 0.039 |
| 6 mm × 200 mm | 0.088 |
| 8 mm × 200 mm | 0.156 |
| 10 mm × 200 mm | 0.243 |
| 12 mm × 200 mm | 0.351 |
| 14 mm × 200 mm | 0.477 |
| 16 mm × 200 mm | 0.623 |
| 20 mm × 200 mm | 0.974 |
| 22 mm × 200 mm | 1.178 |
| 25.4 mm × 200 mm | 1.571 |
| 30 mm × 200 mm | 2.191 |
| 32 mm × 200 mm | 2.493 |
| 40 mm × 200 mm | 3.896 |
| 45 mm × 200 mm | 4.930 |
| 50 mm × 200 mm | 6.087 |
| 60 mm × 200 mm | 8.765 |
| 65 mm × 200 mm | 10.287 |
| 70 mm × 200 mm | 11.930 |
For specifications, see our tungsten copper round bar, tungsten plate and tungsten heavy alloy pages. If you work with molybdenum wire as well, use the molybdenum wire weight chart. To see where tungsten rods are used, read What Are the Uses of Tungsten Rods in Semiconductor Manufacturing?
Conclusion
Tungsten’s density of about 19.25 g/cm³ makes it one of the heaviest metals you can specify, and the charts above turn that density into ready weights for common rod sizes. Use the formula when your size is not listed, and remember that real weights shift slightly with grade and tolerance.
FAQs
Q1. How much does a 1 metre tungsten rod weigh?
A 10 mm diameter rod that is 1,000 mm long weighs about 1.51 kg at 19.25 g/cm³. A 20 mm rod of the same length weighs about 6.05 kg.
Q2. Why does tungsten copper weigh less than pure tungsten?
An 80/20 tungsten copper bar contains 20% copper, which is much lighter than tungsten. Its density is roughly 15.5 g/cm³, compared with 19.25 g/cm³ for pure tungsten.
Q3. Why can the actual weight differ from the chart?
The chart shows theoretical weights. Grade, sintered density, size tolerance and surface finish all move the real weight slightly, so use the chart for estimates and confirm exact figures for critical orders.
Need tungsten or tungsten copper in a specific size? Contact us through our contact page or email export@pearlshims.com.