Steel pipes (NPS≤ 8) usually be packaged into hexagons as below table: (red numbers are preferred)
NPS | PCS at the edge of the bundle | Total PCS in One Bundle | Sectional Area (㎡) |
| 1/2 | 6, 7, 8, 9 | 91, 127, 169, 217 | 0.04, 0.06, 0.08, 0.10 |
| 3/4 | 6, 7, 8, 9 | 91, 127, 169, 217 | 0.07, 0.09, 0.12, 0.15 |
| 1 | 6, 7, 8, 9 | 91, 127, 169, 217 | 0.10, 0.14, 0.18, 0.23 |
| 1¼ | 5, 6, 7, 8 | 61, 91, 127, 169 | 0.12, 0.17, 0.23, 0.30 |
| 1½ | 5, 6, 7 | 61, 91, 127 | 0.15, 0.22, 0.30 |
| 2 | 4, 5, 6 | 37, 61, 91 | 0.15, 0.23, 0.34 |
| 2½ | 3, 4, 5 | 19, 37, 61 | 0.12, 0.22, 0.34 |
| 3 | 3, 4 | 19, 37 | 0.18, 0.33 |
| 4 | 2, 3 | 7, 19 | 0.13, 0.30 |
| 5 | 2, 3 | 7, 19 | 0.21, 0.47 |
| 6 | 2, 3 | 7, 19 | 0.29, 0.66 |
| 8 | 2 | 7 | 0.5 |