Engineering Plastic
PVC (Rigid, Type I)
Chemical- and flame-resistant, rigid, and cheap. Common for corrosion-resistant fixtures and fluid handling. Low service temperature.
Last verified: 2026-07-10
| PolymerChemistry / common trade name. | Polyvinyl chloride |
|---|---|
| Density(g/cm³)Typical specific gravity. | 1.42 |
| Tensile(MPa)Typical tensile strength (unfilled grade). | 52 |
| Max service(°C)Typical continuous service temperature. | 60 |
| Water abs.(%)Typical 24 h water absorption. | 0.04 |
| Machinability | Good |
| Known forThe property it's usually chosen for. | Chemical + flame resistance |
- Typical uses: chemical tanks and ducting, valves and fittings, corrosion-resistant fixtures, machined jigs.
- Good chemical resistance and inherently flame-retardant; rigid and easy to machine or weld.
- Limited to ~60 °C service; not for high-temperature or high-impact (at low temperatures) use.
Other engineering plastics
Sources
- Manufacturer datasheets (typical properties for common unfilled grades)
- ASM International — Engineering Plastics (Engineered Materials Handbook)