Materials / Compare
Brass C360 vs. Plastic TPU
Compare Brass C360 vs. Plastic TPU strength, stiffness, weight and thermal properties.
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 310MPasourcetypical, 0.5% extension under load | not given (tensile used) |
| Ultimate tensile strength | 400MPasourcetypical | 23.7MPasourcetypical, stress at break |
| Flexural strength | not sourced | 4.1MPasourcetypical |
| Elongation at break | 25%sourcetypical, 1 in. rod | not sourced |
| Young's modulus (stiffness) | 96.5GPasourcetypical, temper-independent | 0.067GPasourcetypical |
| Density | 8,498kg/m³sourcenominal | 1,220kg/m³sourcetypical |
| Strength to weight | 36.5kN·m/kg1.88x higher | 19.4kN·m/kg |
| Stiffness to weight | 11.4MN·m/kg207x higher | 0.0549MN·m/kg |
| Poisson's ratio | 0.34sourcebase material: leaded free-machining brass CuZn39Pb2 (C37700), Wieland-Z30 rolled products, reference value at room temperature | not sourced |
| Shear modulus | 36GPa | not sourced |
| Bulk modulus | 101GPa | not sourced |
| Speed of sound | 3,370m/s | 234m/s |
| Thermal | ||
| Thermal conductivity | 116W/m·Ksourcetypical, 20 °C | not sourced |
| Thermal expansion | 20.5µm/m·Ksourcetypical, mean 20-300 °C | not sourced |
| 100 mm part over a 50 °C swing | 103µm growth | not sourced |
| Specific heat | 377J/kg·Ksourcetypical, 20 °C | not sourced |
| Heats up and cools (diffusivity) | 36.2mm²/s | not sourced |
| Thermal shock resistance | 11,997W/m | not sourced |
| Melting point | 888–899°Csourcesolidus-liquidus | 217°Csourcetypical |
| Max service temperature | not sourced | 50.3°CsourceHDT 0.455 MPa (printed specimens) |
| Values for | C36000 free-cutting brass, H02 half-hard rod 1 in. section (20% cold work), copper.org typical values | Ultimaker TPU 95A, 3D-printed specimens, XY (flat); Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS (file v5.00), April 29, 2022. |
Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Plastic TPU is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Brass C360 stronger than Plastic TPU?
Brass C360 is stronger: its yield strength is 310 MPa against tensile strength 23.7 MPa for Plastic TPU (13.1x).
Which is lighter, Brass C360 or Plastic TPU?
Plastic TPU is lighter: 1,220 kg/m³ against 8,498 kg/m³ for Brass C360.
Which is stiffer, Brass C360 or Plastic TPU?
Brass C360 is stiffer: Young's modulus 96.5 GPa against 0.067 GPa for Plastic TPU, so the same part in Brass C360 deflects less under the same load.
Which is lighter for the same job, Brass C360 or Plastic TPU?
For the same stiffness or strength: Brass C360 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie; Plastic TPU is lighter for a strong beam, strong panel or plate.
| Part that must be | Brass C360 | Plastic TPU |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 207x heavier |
| Stiff beam (bending) | lighter | 5.45x heavier |
| Stiff panel or plate | lighter | 1.62x heavier |
| Strong rod or tie | lighter | 1.88x heavier |
| Strong beam | 25% heavier | lighter |
| Strong panel or plate | 1.93x heavier | lighter |
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).