How to use the alloy density calculator
Estimate the density of a two-metal alloy from its mass percentages and pure densities. Enter mass fraction of metal 1, density of metal 1, density of metal 2 in the fields above; the alloy density is computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “alloy density”, “mixture density”, “density of brass or bronze”, “calculate alloy density”, “find alloy density”.
Formula
Variables
- w1 — Mass fraction of metal 1 (%)
- r1 — Density of metal 1 (g/cm³)
- r2 — Density of metal 2 (g/cm³)
Worked example
With mass fraction of metal 1 = 70 %, density of metal 1 = 8.96 g/cm³, density of metal 2 = 2.70 g/cm³, the calculator gives alloy density ≈ 5.284404 g/cm³.
Frequently asked questions
What is the alloy density calculator used for?
Estimate the density of a two-metal alloy from its mass percentages and pure densities. It helps with questions such as “alloy density”, “mixture density”, “density of brass or bronze”.
What is the formula for the alloy density calculation?
Alloy density (g/cm³) = 100 / (w1 / r1+(100-w1) / r2). Here w1 is mass fraction of metal 1 (%), r1 is density of metal 1 (g/cm³), r2 is density of metal 2 (g/cm³).
What inputs do I need for the alloy density calculator?
You need mass fraction of metal 1 in %, density of metal 1 in g/cm³, density of metal 2 in g/cm³. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the alloy density calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the alloy density result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.