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| |  | | | | | | The ERW casing and coupling processing line was introduced from America. The annual capacity of ERW casing is 100,000 tons, coupling is 220,000 Pcs. Product standard of ERW casing Standards | | Code of standard | China National Standard | GB | 9711.1、9253.2 | American Petroleum Institute | API | 5CT、5B | International Organization for Standardization | ISO | 11960、10422 | The United States Society for Testing and Materials | ASTM | A370、E112、E45 |
The size of OCTG
O.D.
(mm)
| Unit weight with coupling(kg/m) | Steel grade | Wall thickness
(mm)
| Thread type | LTC | STC | BTC | 139.70 | 20.83 | H.J.K | 6.20 | | * | | 139.70 | 23.07 | J.K | 6.98 | * | * | * | 139.70 | 25.30 | J.K | 7.72 | * | * | * | 177.80 | 25.30 | H | 5.87 | | * | | 177.80 | 29.76 | H.J.K | 6.91 | | * | | 177.80 | 34.23 | J.K | 8.05 | * | * | * | 177.80 | 38.69 | J.K | 9.19 | * | * | * | 219.08 | 35.72 | J.K | 6.71 | | * | | 219.08 | 41.67 | H | 7.72 | | * | | 219.08 | 47.62 | H | 8.94 | | * | | 219.08 | 47.62 | J.K | 8.94 | * | * | * | 219.08 | 53.57 | J.K | 10.16 | * | * | * | 244.48 | 48.07 | H | 7.92 | | * | | 244.48 | 53.57 | H | 8.94 | * | * | * | 244.48 | 53.57 | J.K | 8.94 | * | * | * | 244.48 | 59.53 | J.K | 10.03 | * | * | * | 273.05 | 48.74 | H | 7.09 | | * | | 273.05 | 60.27 | H.J.K | 8.89 | | * | * | 273.05 | 67.71 | J.K | 10.16 | | * | * | 273.05 | 75.90 | J.K | 11.43 | | * | * | 339.72 | 71.43 | H | 8.38 | | * | | 339.72 | 81.10 | J.K | 9.65 | | * | * | 339.72 | 90.78 | J.K | 10.92 | | * | * | 339.72 | 101.19 | J.K | 12.19 | | * | * |
Coupling dimension, weight of casing with LTC Size (mm) | O.D. (mm) | Min. Length | Bore Diameter (mm) | Width of bearing surface (mm) | Weight(Kg) | Short couplingSTC (mm) | Long coupling (mm) | SC | LC | NL | NL | 139.70 | 153.67 | 171.45 | 203.20 | 142.08 | 3.18 | 11.54 | 14.15 | 177.80 | 194.46 | 184.15 | 228.60 | 180.18 | 4.76 | 18.49 | 23.87 | 219.08 | 244.48 | 196.85 | 254.00 | 223.04 | 6.35 | 35.79 | 47.77 | 244.48 | 269.88 | 196.85 | 266.70 | 248.44 | 6.35 | 39.75 | 56.11 | 273.05 | 298.45 | 203.20 | - | 277.02 | 6.35 | 45.81 | - | 339.72 | 365.12 | 203.20 | - | 343.69 | 5.56 | 56.57 | - |
Coupling dimension, weight of casing with BTC Size (mm) | O.D.
(standard coupling) (mm) | Min. Length (mm) | Bore Diameter (mm) | Width of bearing surface (mm) | Weight (standard coupling) WC | 139.70 | 153.67 | 234.95 | 143.26 | 3.97 | 14.15 | 177.80 | 194.46 | 254.00 | 181.36 | 5.56 | 23.24 | 219.08 | 244.48 | 269.88 | 222.63 | 9.52 | 45.99 | 244.48 | 269.88 | 269.88 | 248.03 | 9.52 | 51.05 | 273.05 | 298.45 | 269.88 | 276.61 | 9.52 | 56.74 | 339.72 | 365.12 | 269.88 | 343.28 | 9.52 | 70.03 |
|  |  | | OCTG production line | OCTG |
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