Calculation Method
The calculator uses a simple engineering estimate: weight = volume × density. Inch inputs are calculated in cubic inches. Metric inputs are converted to inches before applying the selected alloy density.
Weight of Bronze per Cubic Inch and per Kilogram
These are the densities the calculator uses. They also answer the shop-floor question of what a cubic inch of bronze weighs: about 0.32 lb for the leaded tin bronzes and red brass, about 0.27 lb for aluminum bronze. In metric units, g/cm³ is the same number as kilograms per litre (dm³), so a litre of C93200 weighs about 8.9 kg.
| Alloy | lb per cubic inch | g/cm³ (kg per dm³) |
|---|---|---|
| C93200 / SAE 660 bearing bronze | 0.322 | 8.91 |
| C93700 / SAE 64 bronze | 0.320 | 8.86 |
| C51000 phosphor bronze | 0.320 | 8.86 |
| C83600 leaded red brass | 0.318 | 8.80 |
| C90300 Navy G bronze | 0.318 | 8.80 |
| C36000 free-cutting brass | 0.307 | 8.50 |
| C46400 naval brass | 0.304 | 8.41 |
| C86300 manganese bronze | 0.283 | 7.83 |
| C95800 nickel aluminum bronze | 0.276 | 7.64 |
| C63000 nickel aluminum bronze | 0.274 | 7.58 |
| C95500 nickel aluminum bronze | 0.272 | 7.53 |
| C95400 aluminum bronze | 0.269 | 7.45 |
| SAE 841 sintered bronze | 0.238 | 6.59 (6.4 to 6.8 with porosity) |
Example: a solid C93200 bar 2 in. in diameter and 12 in. long has a volume of π × 1² × 12 ≈ 37.7 in³ and weighs about 12.1 lb (5.5 kg).
Important Accuracy Notes
This tool is an estimator, not a certified scale weight. Actual shipped weight may vary because of saw-cut allowance, rough stock oversize, casting tolerance, surface condition, machining allowance, oil content in sintered bronze, packaging, and pallet weight.
For finished machined parts, use the RFQ button in the calculator and attach your drawing when you email us.