Overview
PC industrial grade is an engineering polycarbonate stock material in sheet and rod form, natural-coloured and near-colourless transparent. As an amorphous thermoplastic with a glass transition temperature of around 150°C, it combines high stiffness and hardness with good impact strength - even at low temperatures - while remaining easy to machine and form.
The combination of high stiffness, high hardness and good impact strength is unusual for a transparent thermoplastic: PC remains resistant to impact loading even at low temperatures while providing good electrical insulation. Compared with glass and acrylic (PMMA), PC shows markedly higher impact and fracture toughness and does not shatter even under strong impact loads.
Typical applications are found in electronics and electrical engineering - for example as insulating components, housings or carrier elements - and in mechanical engineering for sight windows, guide and mounting parts or test fixtures.
Technical Data
| Property | Value | Test Standard |
|---|---|---|
| Mechanical Properties | ||
| Yield stress | 65 MPa | DIN EN ISO 527 |
| Elongation at break | 80 % | DIN EN ISO 527 |
| Tensile modulus | 2300 MPa | DIN EN ISO 527 |
| Notched impact strength | 20 kJ / m² | DIN EN ISO 179 |
| Shore hardness | 82 scale D | DIN EN ISO 868 |
| Thermal Properties | ||
| Glass transition temperature | 150 °C | ISO 11357-3 |
| Thermal conductivity | 0.21 W / (m·K) | DIN 52612-1 |
| Specific heat capacity | 1.20 kJ / (kg·K) | DIN 52612 |
| Coefficient of linear expansion | 70 · 10<sup>-6</sup> / K | DIN 53752 |
| Continuous service temperature | -40 … 115 °C | guide value |
| Short-term service temperature (max.) | 140 °C | guide value |
| Heat deflection temperature | 135 °C | DIN EN ISO 75 |
| General Properties | ||
| Density | 1.20 g / cm³ | DIN EN ISO 1183-1 |
| Water absorption | 0.2 % | DIN EN ISO 62 |
| Flammability (thickness 3 mm / 6 mm) | HB / HB | UL 94 |
| Electrical Properties | ||
| Dielectric constant | 3 | IEC 60250 |
| Dissipation factor (50 Hz) | 0.001 | IEC 60250 |
| Volume resistivity | 10<sup>15</sup> Ω · cm | DIN EN 62631-3-1 |
| Surface resistivity | 10<sup>15</sup> Ω | DIN EN 62631-3-2 |
| Comparative tracking index (CTI) | 275 | IEC 60112 |
| Dielectric strength | 30 kV / mm | IEC 60243 |
Frequently Asked Questions about PC Industriequalität
1What is PC industrial grade?+
PC industrial grade is a natural-coloured, near-colourless polycarbonate stock material in sheet and rod form with high stiffness, good impact strength and good electrical insulation.
2How does Liedtke machine PC industrial grade?+
We saw, mill, drill and turn PC industrial grade using standard plastic machining methods to tight tolerances; bonding and thermal forming are also possible.
3What determines the price of a PC industrial grade part?+
The price depends mainly on dimensions, machining effort, tolerances and quantity. We are happy to provide a binding quote based on your drawing.
4When is PC industrial grade not the right choice?+
PC has only limited weather resistance without UV protection and is sensitive to stress cracking under certain media. For permanent outdoor use with UV exposure, a coated or UV-stabilised grade should be considered.
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