Material density chart for machining stock
Densities of 24 common bar-stock materials in g/cm³ and lb/in³.
| Material | g/cm³ | lb/in³ |
|---|---|---|
| Aluminum 6061 | 2.70 | 0.0975 |
| Aluminum 7075 | 2.81 | 0.1015 |
| Aluminum 2024 | 2.78 | 0.1004 |
| Steel 1018 (mild) | 7.87 | 0.2843 |
| Steel 4140 | 7.85 | 0.2836 |
| Stainless 303/304 | 8.00 | 0.2890 |
| Stainless 316 | 8.00 | 0.2890 |
| Stainless 17-4 PH | 7.80 | 0.2818 |
| Tool steel A2 | 7.86 | 0.2840 |
| Tool steel D2 | 7.70 | 0.2782 |
| Cast iron (gray) | 7.20 | 0.2601 |
| Brass 360 | 8.50 | 0.3071 |
| Bronze 932 (bearing) | 8.93 | 0.3226 |
| Copper C110 | 8.89 | 0.3212 |
| Titanium Ti-6Al-4V | 4.43 | 0.1600 |
| Titanium grade 2 | 4.51 | 0.1629 |
| Magnesium AZ31B | 1.77 | 0.0639 |
| Acetal (Delrin) | 1.41 | 0.0509 |
| Nylon 6/6 | 1.14 | 0.0412 |
| UHMW polyethylene | 0.93 | 0.0336 |
| PEEK | 1.32 | 0.0477 |
| Polycarbonate | 1.20 | 0.0434 |
| Acrylic (PMMA) | 1.19 | 0.0430 |
| PTFE | 2.20 | 0.0795 |
Source: typical published values for each grade (manufacturer and supplier datasheets). Weight and cost of a part: stock weight calculator.