Materials / Compare
Brick vs. Plastic PTFE
Compare Brick vs. Plastic PTFE strength, stiffness, weight and thermal properties.
| Try it on a partA sample part to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | not given (tensile used) | 9MPasourcetypical yield strength at 23 °C (Teflon PTFE, Table 8) |
| Ultimate tensile strength | 5.1MPasourcemodulus of rupture (no direct tensile value) | 39.3MPasourcetypical, skived tape 0.13 mm |
| Compressive strength | 77.9MPasourcemean unit compressive strength, solid extruded brick (survey mean; SD 30.8 MPa) | not sourced |
| Elongation at break | not sourced | 350%sourcetypical, skived tape 0.13 mm |
| Young's modulus (stiffness) | not sourced | not sourced |
| Density | 2,082kg/m³sourceface brick density row used for k (BIA notes most fired clay brick 120-130 lb/ft3) | 2,160kg/m³sourcetypical (standard specific gravity, ASTM D4894) |
| Strength to weight | 2.45kN·m/kg | 4.17kN·m/kg1.7x higher |
| Stiffness to weight | not sourced | not sourced |
| Poisson's ratio | not sourced | 0.46sourcetypical, 23 °C (Teflon PTFE resins, Chemours handbook) |
| Shear modulus | not sourced | not sourced |
| Bulk modulus | not sourced | not sourced |
| Speed of sound | not sourced | not sourced |
| Thermal | ||
| Thermal conductivity | 0.92–1.12W/m·Ksourcerange for 130 lb/ft3 face brick (ASHRAE 2013 via BIA) | 0.25W/m·Ksourcetypical, granular resin, 4.6 mm specimen |
| Thermal expansion | 7.2µm/m·KsourceTMS Code average coefficient, clay/shale unit masonry | 100µm/m·Ksourcetypical, granular resin, 23-60 °C (ASTM E228) |
| 100 mm part over a 50 °C swing | 36µm growth13.9x less | 500µm growth |
| Specific heat | 837J/kg·Ksourcevalue used in BIA heat-capacity sample calculation | 1,400J/kg·Ksourcetypical, granular resin, 20 °C (ASTM D4591) |
| Heats up and cools (diffusivity) | 0.585mm²/s7.08x faster | 0.0827mm²/s |
| Thermal shock resistance | not sourced | not sourced |
| Melting point | not sourced | 327°Csourcesecond melting peak (sintered polymer), +/-10 |
| Max service temperature | not sourced | 260°Csourceservice temperature (Chemours general Teflon PTFE statement) |
| Values for | Solid extruded clay/shale brick units (BIA 1993 manufacturer survey, TN 3A 2024); face brick of 130 lb/ft3 for thermal properties (BIA TN 4, from ASHRAE 2013); CTE is the TMS Code value for clay/shale masonry | Chemours Teflon PTFE 7C X granular molding resin, typical values (tensile/elongation measured on 0.13 mm skived tape) |
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 Brick stronger than Plastic PTFE?
Plastic PTFE is stronger: its yield strength is 9 MPa against tensile strength 5.1 MPa for Brick (1.76x).
Which is lighter, Brick or Plastic PTFE?
Brick is lighter: 2,082 kg/m³ against 2,160 kg/m³ for Plastic PTFE.
Which is lighter for the same job, Brick or Plastic PTFE?
For the same stiffness or strength: Plastic PTFE is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Brick | Plastic PTFE |
|---|---|---|
| Strong rod or tie | 1.7x heavier | lighter |
| Strong beam | 41% heavier | lighter |
| Strong panel or plate | 28% 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).
Which conducts heat better, Brick or Plastic PTFE?
Brick conducts heat better: 1.02 W/m·K against 0.25 W/m·K for Plastic PTFE.
Which expands less with temperature?
Brick expands less: 7.2 µm/m·K against 100 µm/m·K for Plastic PTFE.