Materials / Compare
Plastic PPS GF40 vs. Titanium
Compare Plastic PPS GF40 vs. Titanium 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 | not given (tensile used) | 885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset |
| Ultimate tensile strength | 195MPasourcetensile strength, 5 mm/min | 940MPasourcetypical, plate, annealed |
| Flexural strength | 285MPasourceflexural strength at break | not sourced |
| Elongation at break | 1.9%sourcestrain at break, 5 mm/min | 16%sourcetypical, in 2 in., plate annealed |
| Young's modulus (stiffness) | 14.7GPasourcetypical, 1 mm/min | 107–122GPasourcetypical range, 20 °C |
| Density | 1,650kg/m³sourcetypical | 4,430kg/m³sourcenominal |
| Strength to weight | 118kN·m/kg | 200kN·m/kg1.69x higher |
| Stiffness to weight | 8.91MN·m/kg | 25.8MN·m/kg2.9x higher |
| Poisson's ratio | 0.35sourceglass-reinforced Fortron PPS (class value, not grade-specific) | 0.342sourcemean of TIMET measurements |
| Shear modulus | 5.44GPa | 42.7GPa7.84x stiffer in shear |
| Bulk modulus | 16.3GPa | 121GPa |
| Speed of sound | 2,985m/s | 5,084m/s |
| Thermal | ||
| Thermal conductivity | 0.2W/m·Ksource40% glass-reinforced Fortron, 25 °C (not grade-specific) | 6.6W/m·Ksourcetypical, 20 °C, mill annealed |
| Thermal expansion | 12µm/m·Ksourceparallel (flow), mean -50 to 90 °C | 9µm/m·Ksourcetypical, mean 0-100 °C |
| 100 mm part over a 50 °C swing | 60µm growth | 45µm growth33% less |
| Specific heat | not sourced | 580J/kg·Ksourcetypical, 20 °C |
| Heats up and cools (diffusivity) | not sourced | 2.57mm²/s |
| Thermal shock resistance | 144W/m | 3,730W/m26x more resistant |
| Melting point | 280°CsourceDSC, 10 °C/min | 1,630–1,650°Csourcemelting range |
| Glass transition | 90°CsourceDSC, 10 °C/min | not sourced |
| Max service temperature | 270°CsourceHDT 1.8 MPa | 400°Csourceupper recommended use temperature |
| Values for | Celanese Fortron 1140L4 (PPS, 40% glass fibre), injection moulding; FORTRON PPS Short-Term Properties Guide (PPS-012, 2016); thermal conductivity and Poisson for 40% glass-reinforced Fortron from the Fortron PPS Design Manual (PPS-050, 2013). | TIMETAL 6-4 (Ti-6Al-4V Grade 5) annealed plate typical (TIMET properties manual) + TIMET datasheet TMC-0150 physical properties |
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.
Questions
Is Plastic PPS GF40 stronger than Titanium?
Titanium is stronger: its yield strength is 885 MPa against tensile strength 195 MPa for Plastic PPS GF40 (4.54x).
Which is lighter, Plastic PPS GF40 or Titanium?
Plastic PPS GF40 is lighter: 1,650 kg/m³ against 4,430 kg/m³ for Titanium.
Which is stiffer, Plastic PPS GF40 or Titanium?
Titanium is stiffer: Young's modulus 115 GPa against 14.7 GPa for Plastic PPS GF40, so the same part in Titanium deflects less under the same load.
Which is lighter for the same job, Plastic PPS GF40 or Titanium?
For the same stiffness or strength: Plastic PPS GF40 is lighter for a stiff panel or plate, strong panel or plate; Titanium is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam.
| Part that must be | Plastic PPS GF40 | Titanium |
|---|---|---|
| Stiff rod or tie (tension) | 2.9x heavier | lighter |
| Stiff beam (bending) | 4% heavier | lighter |
| Stiff panel or plate | lighter | 35% heavier |
| Strong rod or tie | 1.69x heavier | lighter |
| Strong beam | 2% heavier | lighter |
| Strong panel or plate | lighter | 26% heavier |
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).
Which conducts heat better, Plastic PPS GF40 or Titanium?
Titanium conducts heat better: 6.6 W/m·K against 0.2 W/m·K for Plastic PPS GF40.
Which expands less with temperature?
Titanium expands less: 9 µm/m·K against 12 µm/m·K for Plastic PPS GF40.