Materials / Compare
Plastic LCP GF30 vs. Plastic Polycarbonate
Compare Plastic LCP GF30 vs. Plastic Polycarbonate 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) | 65MPasourcetypical, tensile yield |
| Ultimate tensile strength | 115MPasourcetensile strength (ISO 527) | 65MPasourcetypical, stress at break |
| Flexural strength | 184MPasourcetypical (ISO 178) | 97MPasourcetypical, flexural strength |
| Elongation at break | 1.5%sourcetensile elongation (ISO 527) | 125%sourcetypical, strain at break |
| Young's modulus (stiffness) | 11.5GPasourcetensile modulus (ISO 527) | 2.4GPasourcetypical |
| Density | 1,610kg/m³sourcetypical | 1,200kg/m³sourcetypical34% lighter |
| Strength to weight | 71.4kN·m/kg32% higher | 54.2kN·m/kg |
| Stiffness to weight | 7.14MN·m/kg3.57x higher | 2MN·m/kg |
| Poisson's ratio | not sourced | 0.38sourcetypical, polycarbonate family (Covestro Part and Mold Design guide, Table 3-1) |
| Shear modulus | not sourced | 0.87GPa |
| Bulk modulus | not sourced | 3.33GPa |
| Speed of sound | 2,673m/s | 1,414m/s |
| Thermal | ||
| Thermal conductivity | 0.5W/m·Ksourcehot disk (ISO 22007-2), temperature not stated | 0.2W/m·Ksourcetypical, through-plane, 23 C |
| Thermal expansion | 20µm/m·Ksourceflow direction (MD), mean 50-150 °C | 65µm/m·Ksourcetypical, 23-55 C, parallel and normal |
| 100 mm part over a 50 °C swing | 100µm growth3.25x less | 325µm growth |
| Specific heat | 839J/kg·KsourceASTM E1269, temperature not stated | 1,172J/kg·Ksourcetypical (guide value), Bayer ASTM datasheet for Makrolon 2405, ASTM D 2766 |
| Heats up and cools (diffusivity) | 0.37mm²/s2.6x faster | 0.142mm²/s |
| Thermal shock resistance | not sourced | 51.7W/m |
| Glass transition | not sourced | 144°Csourcetypical, DSC 10 C/min |
| Max service temperature | 288°CsourceHDT 1.8 MPa (ISO 75) | 125°CsourceUL 746B RTI, tensile strength, 1.5 mm |
| Values for | Sumitomo Chemical SUMIKASUPER LCP E6006L (30% glass fibre; high strength, low shrinkage); SUMIKASUPER LCP Technical Note, Version 04 / Nov. 2023, typical values. | Covestro Makrolon 2405 general-purpose PC (MVR 19), Covestro technical datasheet version 2026-09-28, typical values |
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 LCP GF30 stronger than Plastic Polycarbonate?
Plastic LCP GF30 is stronger: its tensile strength is 115 MPa against yield strength 65 MPa for Plastic Polycarbonate (1.77x).
Which is lighter, Plastic LCP GF30 or Plastic Polycarbonate?
Plastic Polycarbonate is lighter: 1,200 kg/m³ against 1,610 kg/m³ for Plastic LCP GF30.
Which is stiffer, Plastic LCP GF30 or Plastic Polycarbonate?
Plastic LCP GF30 is stiffer: Young's modulus 11.5 GPa against 2.4 GPa for Plastic Polycarbonate, so the same part in Plastic LCP GF30 deflects less under the same load.
Which is lighter for the same job, Plastic LCP GF30 or Plastic Polycarbonate?
For the same stiffness or strength: Plastic LCP GF30 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam.
| Part that must be | Plastic LCP GF30 | Plastic Polycarbonate |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 3.57x heavier |
| Stiff beam (bending) | lighter | 1.63x heavier |
| Stiff panel or plate | lighter | 26% heavier |
| Strong rod or tie | lighter | 32% heavier |
| Strong beam | lighter | 9% heavier |
| Strong panel or plate | about equal | about equal |
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 LCP GF30 or Plastic Polycarbonate?
Plastic LCP GF30 conducts heat better: 0.5 W/m·K against 0.2 W/m·K for Plastic Polycarbonate.
Which expands less with temperature?
Plastic LCP GF30 expands less: 20 µm/m·K against 65 µm/m·K for Plastic Polycarbonate.