| Physical property of GRP pipe | |||
| Itme No. | Pipe property | Value | Unit |
| 1 | Circumferential tensile strength | 120~180 | Mpa |
| 2 | Axial tensile strength | 45~60 | Mpa |
| 3 | Compressive strength | 118~245 | Mpa |
| 4 | Circumferential Elastic modulus | 1.41~2.45×104 | Mpa |
| 5 | Axial Elastic modulus | 1.09~1.27×104 | Mpa |
| 6 | Shear strength | 12 | Mpa |
| 7 | Shear modulus | 0.69×104 | Mpa |
| 8 | Linear expansion coefficient | 20×10-6 | mm/mm/℃ |
| 9 | Poisson ratio | 0.3 | |
| 10 | Barcol hardness | ≥40 | |
| 11 | Specific weight | 1.8~2.0 | g/cm³ |
| 12 | Thermal conductivity | 1.25~1.67 | kj/m▪h▪℃ |
| 13 | Water absorption | 0.003 | |