| Application | Low-M-terp. Pipe |
|---|---|
| Grade | 10# 20# |
| Standard | GB 3087-2008 |
| Certification | Ф159~Ф720×4.5~50 |
WTK OD | >159 ~177.8 | >177.8 ~219 | >219 ~273 | >273 ~325 | >325 ~356 | >356 ~377 | >377 ~426 | >426 ~508 | >508 ~720 |
|---|---|---|---|---|---|---|---|---|---|
| ≥4.0~5.0 | 0 | 0 | 0 | 0 | 0 | ||||
| >5.0~7.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| >7.0~8.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| >8.0~10.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| >10.5~13.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| >13.0~20.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| >20.0~25.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| >25.0~30.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |