Material · Engineering Plastics
PPS
The precision high-temp polymer: near-zero moisture uptake, broad chemical resistance, 200 °C service.
Price index: $$$$
Machinability
3/5
Corrosion resistance
5/5
Strength
90 MPa
Value for money
$$$$
Material properties
| Parameter | Value |
|---|---|
| Tensile strength | 90 MPa |
| Yield strength | ~90 MPa |
| Hardness | R123 (Rockwell) |
| Density | 1.35 g/cm³ |
Choose it when
You need PEEK-like chemical resistance and 200 °C stability but the budget says no: PPS absorbs almost no moisture, holds precision dimensions hot, and costs meaningfully less.
Look elsewhere when
The part takes impact or flexure — PPS is comparatively brittle and notch-sensitive. For shock-loaded parts choose PPSU or nylon; above ~220 °C, only PEEK remains.
Typical applications
- Chemical pump housings and impeller parts
- High-temperature electrical connectors and insulators
- Precision fixtures for hot process environments
- Under-hood automotive sensor bodies
Compared with similar grades
| Property | PPS | ABS | Polycarbonate (PC) | Nylon PA6 |
|---|---|---|---|---|
| Tensile strength | 90 MPa | 40 MPa | 66 MPa | 79 MPa (dry) |
| Yield strength | ~90 MPa | ~40 MPa | ~62 MPa | ~79 MPa (dry) |
| Hardness | R123 (Rockwell) | R105 (Rockwell) | R118 (Rockwell) | R119 (Rockwell, dry) |
| Density | 1.35 g/cm³ | 1.05 g/cm³ | 1.20 g/cm³ | 1.14 g/cm³ |
| Price index | $$$$ | $ | $ | $ |
| Machinability | 3/5 | 4/5 | 3/5 | 3/5 |
Have a part in mind?
Upload your CAD file and get a price range in about 60 seconds. NDA-protected from the first byte.
Get instant estimate