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GEHR Plastics PP Polypropylene
| Category | Polymer , Thermoplastic , Polypropylene (PP) |
| Manufacturer | GEHR Plastics Inc |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | GEHR Plastics PP Polypropylene.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Polypropylene shows a high mechanical strength and a tensile strength, but a low notched impact strength. PP resists stress cracking and it is easy to weld. At minus temperatures it can get brittle. The chemical and electrical properties are very good. The continuous operating temperatures ranges between 5°C and 100°C.Propertieslow weighthigh heat resistancehigh tensile strengthhigh surface strengthhigh chemical resistancelow oxidation resistancelow abrasion resistancebrittle in the coldnessHF-welding not possiblenatural color is not weather resistantApplicationspumpsvalvesgasketssupporting standsspacer for the platingparticles for toys
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Specific Gravity | 0.910 g/cc | 0.910 g/cc | ISO 1183 |
| Water Absorption | 0.010 % | 0.010 % | ISO 62 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Shore D | 70 | 70 | DIN 53505 |
| Ball Indentation Hardness | 67.0 MPa | 9720 psi | ISO 2039 |
| Tensile Strength, Yield | 30.0 MPa | 4350 psi | ISO 527 |
| Elongation at Break | >= 50 % | >= 50 % | ISO 527 |
| Elongation at Yield | 10 % | 10 % | ISO 527 |
| Modulus of Elasticity | 1.20 GPa | 174 ksi | ISO 527 |
| Charpy Impact Unnotched | NB | NB | ISO 179 |
| Charpy Impact, Notched | 5.00 J/cm² | 23.8 ft-lb/in² | ISO 179 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Maximum Service Temperature, Air | 100 °C | 212 °F | |
| Deflection Temperature at 0.46 MPa (66 psi) | 96.0 °C | 205 °F | ISO 75 |
| Vicat Softening Point | 91.0 °C | 196 °F | VST/B/50; ISO 306 |
| Minimum Service Temperature, Air | 5.00 °C | 41.0 °F | |
| Flammability, UL94 | HB | HB |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Volume Resistivity | >= 1.00e+16 ohm-cm | >= 1.00e+16 ohm-cm | VDE 0303 |
| Dielectric Constant | 2.3 @Frequency 1.00e+6 Hz |
2.3 @Frequency 1.00e+6 Hz |
DIN 53483 |
| Dielectric Loss Index | 0.00020 @Frequency 1.00e+6 Hz |
0.00020 @Frequency 1.00e+6 Hz |
DIN 53483 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Acid Resistance | yes | |
| Aromatic Resistance | no | |
| Bondability | yes | |
| CKW Resistance | limited | |
| Color | Grey | |
| Hydrocarbonate Resistance | yes | |
| Hydroxide Resistance | yes | |
| Ketone Resistance | yes | |
| Physiological indifference according | yes | |
| Resistance Against Hot Water | yes | |
| UV Stabilization | limited |
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