Materials / Compare
Brass C260 vs. Plastic TPU
Compare Brass C260 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 | 345MPasourcenominal, strip/flat, 0.5% extension (not 0.2% offset) | not given (tensile used) |
| Ultimate tensile strength | 427MPasourcenominal, strip/flat | 23.7MPasourcetypical, stress at break |
| Flexural strength | not sourced | 4.1MPasourcetypical |
| Elongation at break | 23%sourcenominal, in 2.0 in., strip/flat | not sourced |
| Young's modulus (stiffness) | 110GPasourcetypical, temper-independent | 0.067GPasourcetypical |
| Density | 8,525kg/m³sourcenominal | 1,220kg/m³sourcetypical |
| Strength to weight | 40.5kN·m/kg2.08x higher | 19.4kN·m/kg |
| Stiffness to weight | 12.9MN·m/kg236x higher | 0.0549MN·m/kg |
| Poisson's ratio | 0.34sourcereference value at room temperature (Wieland-M30 = CuZn30 = C26000, rolled products) | not sourced |
| Shear modulus | 41.2GPa | not sourced |
| Bulk modulus | 115GPa | not sourced |
| Speed of sound | 3,597m/s | 234m/s |
| Thermal | ||
| Thermal conductivity | 121W/m·Ksourcetypical, 20 °C | not sourced |
| Thermal expansion | 20µm/m·Ksourcetypical, mean 20-300 °C | not sourced |
| 100 mm part over a 50 °C swing | 100µm growth | not sourced |
| Specific heat | 377J/kg·Ksourcetypical, 20 °C | not sourced |
| Heats up and cools (diffusivity) | 37.7mm²/s | not sourced |
| Thermal shock resistance | 12,510W/m | not sourced |
| Melting point | 916–954°Csourcesolidus-liquidus | 217°Csourcetypical |
| Max service temperature | not sourced | 50.3°CsourceHDT 0.455 MPa (printed specimens) |
| Values for | C26000 cartridge brass, H02 half hard flat/strip: CDA Electronic Connector Design Guide (mechanical) + CDA alloy page (physical) | 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 C260 stronger than Plastic TPU?
Brass C260 is stronger: its yield strength is 345 MPa against tensile strength 23.7 MPa for Plastic TPU (14.6x).
Which is lighter, Brass C260 or Plastic TPU?
Plastic TPU is lighter: 1,220 kg/m³ against 8,525 kg/m³ for Brass C260.
Which is stiffer, Brass C260 or Plastic TPU?
Brass C260 is stiffer: Young's modulus 110 GPa against 0.067 GPa for Plastic TPU, so the same part in Brass C260 deflects less under the same load.
Which is lighter for the same job, Brass C260 or Plastic TPU?
For the same stiffness or strength: Brass C260 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 C260 | Plastic TPU |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 236x heavier |
| Stiff beam (bending) | lighter | 5.81x heavier |
| Stiff panel or plate | lighter | 1.69x heavier |
| Strong rod or tie | lighter | 2.08x heavier |
| Strong beam | 17% heavier | lighter |
| Strong panel or plate | 1.83x 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).