มาตรฐาน:API 5ct
เกรดเหล็ก:J55,K55,N80,L80,C90,T95,P110,Q125,V150
มิติ:4 1/2“-20”
สัมพันธ์:BTC,STC,LTC
| เส้นผ่าศูนย์กลาง |
ผนังหนาตั้งแต่ |
| นิ้ว |
มม。 |
นิ้ว |
มม。 |
| 4-1 / 2 |
114.3. |
.205 - .500 |
5.21 - 12.70 |
| 5. |
127. |
.296 - .500 |
7.52 - 12.70 |
| 5-1 / 2 |
139.7 |
.275 - .687 |
6.98 - 17.45 |
| 6-5 / 8 * |
168.28 |
.352 - .525 |
8.94 - 13.34. |
| 7. |
177.8 |
.272 - .625 |
6.91 - 15.88 |
| 7-5 / 8. |
193.68 |
.328 - .750 |
8.33 - 19.05 |
| 7-3 / 4 * |
196.9 |
.595 - .625 |
15.11 - 15.88 |
| 8-5 / 8 * |
219.08 |
.352 - .500 |
8.94 - 12.70 |
| 9-3 / 8 * |
238.13 |
.400 |
10.16 |
| 9-5/8 |
244.48 |
.352 - .609 |
8.94 - 15.47 |
| 9-7 / 8 * |
250.6 |
.625 - .700 |
15.86 - 17.78 |
| 10-1 / 8 * |
257.18 |
.795 |
20.19. |
| 10-3 / 4. |
273.05 |
.350 - .797 |
8.89 - 20.24 |
| 11-3 / 4. |
298.45 |
.375 - .656 |
9.53 - 16.66 |
| 11-7 / 8. |
301.63 |
.582 |
14.78 |
| 13-3 / 8. |
339.73 |
.380 - .550 |
9.65 - 13.97 |
| 13-5 / 8. |
346.08 |
.625 |
15.88 |
| 14. |
355.60 |
.562 - .820 |
14.27 - 20.83 |
| 16. |
406.4 |
.495 - .715 |
12.57 - 18.16 |
| เส้นผ่าศูนย์กลางภายนอก |
ผนังหนาตั้งแต่ |
| นิ้ว |
มม。 |
นิ้ว |
มม。 |
| 2-3 / 8. |
60.33 |
.190 -.336 |
4.83 - 8.53 |
| 2-7 / 8. |
73.03 |
.217 -.308 |
5.51 - 7.82 |
| 3-1 / 2 |
88.9 |
.289 - .375 |
7.34 - 9.53 |
| 4. |
101.6 |
.226 -.330 |
5.74 - 8.38 |
| 4-1 / 2 |
114.30 |
.271 - .337 |
6.88 - 8.56 |