Materials / Plastic
Plastic PBT GF30
Plastic PBT GF30 (Ultradur B 4300 G6) strength, stiffness, density and thermal properties, with their source.
A bracket in Plastic PBT GF30, smooth finish.
| Process | Bulk polymer (molded or machined) |
|---|---|
| Mechanical | |
| Yield strength | not given (tensile used) |
| Ultimate tensile strength | 140MPasourcestress at break, 23 °C |
| Flexural strength | 210MPasourcetypical, 23 °C |
| Elongation at break | 3%sourcestrain at break, 23 °C |
| Young's modulus (stiffness) | 9.8GPasourcetypical, 23 °C |
| Density | 1,530kg/m³sourcetypical |
| Strength to weight | 91.5kN·m/kg |
| Stiffness to weight | 6.41MN·m/kg |
| Poisson's ratio | not sourced |
| Shear modulus | not sourced |
| Bulk modulus | not sourced |
| Speed of sound | 2,531m/s |
| Thermal | |
| Thermal conductivity | 0.27W/m·Ksourcetypical (DIN 52612-1) |
| Thermal expansion | 25µm/m·Ksourcelongitudinal (flow), mean 23-55 °C |
| 100 mm part over a 50 °C swing | 125µm growth |
| Specific heat | 1,050J/kg·Ksourcetypical, 23 °C |
| Heats up and cools (diffusivity) | 0.168mm²/s |
| Thermal shock resistance | not sourced |
| Melting point | 223°CsourceDSC (ISO 11357) |
| Max service temperature | 205°CsourceHDT 1.8 MPa |
| Values for | BASF Ultradur B 4300 G6 (PBT, 30% glass fibre), injection moulding grade; product information sheet 09/2026, typical values for uncoloured product at 23 °C. |
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