Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.
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Technical specification:
| Specification | Weight code | Outside diameter (mm) | Wall thickness (mm) | Inner diameter (mm) | Calculated weight | ||||
| NUE(with thread and coupling) | EUE(with thread and coupling) | Plain end (kg/m) | Changed weight due to end process(kg) | ||||||
| Plain(with thread and coupling) | External upset threaded and coupled | ||||||||
| standard coupling | special coupling | ||||||||
| 1.9 | 2.75 | 2.9 | 48.26 | 3.68 | 40.9 | 4.05 | 0.27 | 0.91 | - |
| 2-3/8 | 4.6 | 4.7 | 60.32 | 4.83 | 50.66 | 6.61 | 0.73 | 1.81 | 1.34 |
| 2-7/8 | 6.4 | 6.5 | 73.02 | 5.51 | 62 | 9.17 | 1.45 | 2.54 | 1.71 |
| 2-7/8 | 8.6 | 8.7 | 73.02 | 7.82 | 57.38 | 12.57 | 1.18 | 2.27 | 1.43 |
| 3-1/2 | 9.2 | 9.3 | 88.9 | 6.45 | 76 | 13.12 | 2.27 | 4.17 | 2.45 |
| 3-1/2 | 12.7 | 12.95 | 88.9 | 9.52 | 69.86 | 18.64 | 1.81 | 3.72 | 2 |
| 4 | 10.7 | 11 | 101.6 | 6.65 | 88.3 | 15.57 | - | 4.81 | - |
| 4-1/2 | 12.6 | 12.75 | 114.3 | 6.88 | 100.54 | 18.23 | 2.72 | - | - |
Mechanical Properties:
| Standard | Steel grade | Tensil Strength(Mpa) | Yeild Strength(Mpa) | Elongation(%) |
| API 5CT | J55 | ≥517 | 379~552 | 0.5% |
| API 5CT | K55 | ≥655 | 379~552 | 0.5% |
| API 5CT | N80 | ≥689 | 552~758 | 0.5% |
| API 5CT | L80 | ≥655 | 552~655 | 0.5% |
| API 5CT | P110 | ≥862 | 758~965 | 0.6% |
