| Test tube | σYS MPa | σU MPa |
| T4 | 114.31 | 167.63 |
| T1 | 90.89 | 131.7 |
| T5 | 84.18 | 125.95 |
| T2 | 80.34 | 112.95 |
| Mean | 92.43 | 134.56 |
| Standard deviation | 15.22 | 23.40 |
| % C.V. | 16.47 | 17.39 |