| 表7.0.1-2 PN6 钢制管法兰用材料最大允许工作压力（表压） | (bar) | ||||||||||||||||||||
| 法兰材料 | 工作温度（℃） | ||||||||||||||||||||
| 类别号 | 20 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 375 | 400 | 425 | 450 | 475 | 500 | 510 | 520 | 530 | 540 | 550 | 575 | 600 |
| 1C1 | 6.0 | 6.0 | 6.0 | 5.8 | 5.6 | 5.4 | 5.0 | 4.7 | 4.6 | 4.0 | 3.3 | 2.3 | 1.5 | 1.0 | — | — | — | — | — | — | — |
| 1C2 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.5 | 5.3 | 5.1 | 4.0 | 3.3 | 2.3 | 1.5 | 1.0 | — | — | — | — | — | — | — |
| 1C3 | 6.0 | 6.0 | 5.8 | 5.7 | 5.5 | 5.2 | 4.8 | 4.6 | 4.5 | 3.8 | 3.1 | 2.3 | 1.5 | 1.0 | — | — | — | — | — | — | — |
| 1C4 | 5.5 | 5.4 | 5.0 | 4.8 | 4.7 | 4.5 | 4.1 | 4.0 | 3.9 | 3.5 | 3.0 | 2.2 | 1.5 | 1.0 | — | — | — | — | — | — | — |
| 1C9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.8 | 5.6 | 5.5 | 5.4 | 5.3 | 5.1 | 4.1 | 2.9 | 2.5 | 2.2 | 1.9 | 1.6 | 1.4 | 1.0 | 0.7 |
| 1C10 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.8 | 5.7 | 4.3 | 3.3 | 3.0 | 2.7 | 2.3 | 2.0 | 1.7 | 1.2 | 0.8 |
| 1C13 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.8 | 5.6 | 5.4 | 3.6 | 2.4 | 2.2 | 1.9 | 1.7 | 1.5 | 1.4 | 1.0 | 0.7 |
| 1C14 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.2 | 3.5 | 3.0 | 2.6 | 2.3 | 1.9 | 1.7 | 1.2 | 0.8 |
| 2C1 | 5.5 | 5.3 | 4.5 | 4.1 | 3.8 | 3.6 | 3.4 | 3.2 | 3.2 | 3.1 | 3.0 | 3.0 | 2.9 | 2.9 | 2.9 | 2.9 | 2.8 | 2.8 | 2.7 | 2.4 | 1.9 |
| 2C2 | 5.5 | 5.3 | 4.6 | 4.2 | 3.9 | 3.7 | 3.5 | 3.3 | 3.3 | 3.2 | 3.2 | 3.2 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 2.8 | 2.3 |
| 2C3 | 4.6 | 4.4 | 3.8 | 3.4 | 3.1 | 2.9 | 2.8 | 2.6 | 2.6 | 2.5 | 2.5 | 2.4 | — | — | — | — | — | — | — | — | — |
| 2C4 | 5.5 | 5.3 | 4.9 | 4.5 | 4.2 | 4.0 | 3.7 | 3.6 | 3.5 | 3.5 | 3.4 | 3.4 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.3 | 3.2 | 2.9 | 2.3 |
| 2C5 | 5.5 | 5.4 | 5.0 | 4.7 | 4.4 | 4.1 | 3.9 | 3.8 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.6 | 3.6 | 3.6 | 3.5 | 3.0 | 2.3 |
| 12EO | 5.3 | 5.1 | 4.7 | 4.4 | 4.1 | 3.9 | 3.6 | 3.5 | — | 3.3 | — | 3.3 | — | 3.2 | — | — | — | — | 3.1 | — | 2.3 |