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 |