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| Brand Name: | Jinxi Pipe |
| Model Number: | Casing Pipe |
| MOQ: | 1 |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability: | 1000000 |
Pipe Type: Oil casing, API 5CT casing, API Spec 5CT J55 K55 N80 L80 Seamless Steel Oil Well Casing Pipe, API Casing, OTCG Casing,Tubing.
Outer diamater(OD): 114.30mm-508mm
Wall thickness(WT): 5.21mm-16.13mm
Length: R1; R2; R3
Gread: J55;K55;N80-Q;L80-1;L80-9Cr;L80-13Cr,C95,P10
Standard: API 5CT PSL1/PSL2 J55,K55,N80-1,N80-Q,
API 5CT PSL1/PSL2 L80-1, L80-9Cr,L80-13Cr,C90, C95, P110,Q125
Thread types: STC;LTC;BTC;VAM TOP equivalent;New VAM equivalent;CS equivalent;HSC equivalent;NUE;EUE;LTC;XC
Thread: NUE, EUE, VAM, STC, LTC, BTC, XC, VAM TOP, NEW VAM,HYDRILL CS
Application: Casing Pipe is widely used for fastening oil and gas well wall or borehold, with bigger diameter than tubing, including surface casings, technical casings and oil layer casings.
Casing Pipe is used to support the oil, gas wells of steel pipe, in order to ensure the drilling process and the completion of the entire well after the normal operation. Each well has several layers of casing depending on the drilling depth and geology. Casing down to use cement cementing, it and the tubing, drill pipe is different, can not be reused, a one-time consumption of materials. Therefore, the casing of the total consumption of more than 70% of the wells. Casing according to the use can be divided into: catheter, surface casing, casing technology and oil casing.
Specification & Size of OCTG Steel Pipe (API Casing Pipe Size Chart)
| DN | O. D. | Weight | W. T. | End Machining Form | ||||||||
| Steel Grade | ||||||||||||
| Inch | mm | lb/ft | kg/m | Inch | mm | H40 | J55 | L80 | N80 | C90 | P110 | |
| K55 | T95 | |||||||||||
| 4 1/2 | 4.5 | 114.3 | 9.5 | 14.14 | 0.205 | 5.21 | PS | PS | – | – | – | – |
| 10.5 | 15.63 | 0.224 | 5.69 | – | PSB | – | – | – | – | |||
| 11.6 | 17.26 | 0.25 | 6.35 | – | PSLB | PLB | PLB | PLB | PLB | |||
| 13.5 | 20.09 | 0.29 | 7.37 | – | – | PLB | PLB | PLB | PLB | |||
| 15.1 | 22.47 | 0.337 | 9.56 | – | – | – | – | – | PLB | |||
| 5 | 5 | 127 | 11.5 | 17.11 | 0.22 | 5.59 | – | PS | – | – | – | – |
| 13 | 19.35 | 0.253 | 6.43 | – | PSLB | – | – | – | – | |||
| 15 | 22.32 | 0.296 | 7.52 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 18 | 26.79 | 0.362 | 9.19 | – | – | PLB | PLB | PLBE | PLB | |||
| 21.4 | 31.85 | 0.437 | 11.1 | – | – | PLB | PLB | PLB | PLB | |||
| 23.2 | 34.53 | 0.478 | 12.14 | – | – | – | – | PLB | – | |||
| 24.1 | 35.86 | 0.5 | 12.7 | – | – | – | – | PLB | – | |||
| 5 1/2 | 5.5 | 139.7 | 14 | 20.83 | 0.244 | 6.2 | PS | PS | – | – | – | – |
| 15.5 | 23.07 | 0.275 | 6.98 | – | PSLB | – | – | – | – | |||
| 17 | 25.3 | 0.304 | 7.72 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 20 | 29.76 | 0.361 | 9.17 | – | – | PLB | PLB | PLBE | PLB | |||
| 23 | 34.23 | 0.415 | 10.54 | – | – | PLB | PLB | PLBE | PLB | |||
| 26.8 | 39.88 | 0.5 | 12.7 | – | – | – | – | – | – | |||
| 29.7 | 44.2 | 0.562 | 14.27 | – | – | – | – | – | – | |||
| 32.6 | 48.51 | 0.625 | 15.88 | – | – | – | – | – | – | |||
| 35.3 | 52.53 | 0.687 | 17.45 | – | – | – | – | – | – | |||
| 38 | 56.55 | 0.75 | 19.05 | – | – | – | – | – | – | |||
| 40.5 | 60.27 | 0.812 | 20.62 | – | – | – | – | – | – | |||
| 43.1 | 64.14 | 0.875 | 22.22 | – | – | – | – | – | – | |||
| 6 5/8 | 6.625 | 168.28 | 20 | 29.76 | 0.288 | 7.32 | PS | PSLB | – | – | – | – |
| 24 | 35.72 | 0.352 | 8.94 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 28 | 41.67 | 0.417 | 10.59 | – | – | PLB | PLB | PLBE | PLB | |||
| 32 | 47.62 | 0.475 | 12.06 | – | – | PLB | PLB | PLBE | PLB | |||
| 7 | 7 | 177.8 | 17 | 25.3 | 0.231 | 5.87 | PS | – | – | – | – | – |
| 20 | 29.76 | 0.272 | 6.91 | PS | PS | – | – | – | – | |||
| 23 | 34.23 | 0.317 | 8.05 | – | PSLB | PLB | PLB | PLBE | – | |||
| 26 | 38.69 | 0.362 | 9.19 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 29 | 43.16 | 0.408 | 10.36 | – | – | PLB | PLB | PLBE | PLB | |||
| 32 | 47.62 | 0.453 | 11.51 | – | – | PLB | PLB | PLBE | PLB | |||
| 35 | 52.09 | 0.498 | 12.65 | – | – | PLB | PLB | PLBE | PLB | |||
| 38 | 56.55 | 0.54 | 13.72 | – | – | PLB | PLB | PLBE | PLB | |||
| 42.7 | 63.54 | 0.625 | 15.88 | – | – | – | – | – | – | |||
| 46.4 | 69.05 | 0.687 | 17.45 | – | – | – | – | – | – | |||
| 50.1 | 74.56 | 0.75 | 19.05 | – | – | – | – | – | – | |||
| 53.6 | 79.77 | 0.812 | 20.62 | – | – | – | – | – | – | |||
| 57.1 | 84.97 | 0.875 | 22.22 | – | – | – | – | – | – | |||
| 7 5/8 | 7.625 | 193.68 | 24 | 35.72 | 0.3 | 7.62 | PS | – | – | – | – | – |
| 26.4 | 39.29 | 0.328 | 8.33 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 29.7 | 44.2 | 0.375 | 9.52 | – | – | PLB | PLB | PLBE | PLB | |||
| 33.7 | 50.15 | 0.43 | 10.92 | – | – | PLB | PLB | PLBE | PLB | |||
| 39 | 58.05 | 0.5 | 12.7 | – | – | PLB | PLB | PLBE | PLB | |||
| 42.8 | 63.69 | 0.562 | 14.27 | – | – | PLB | PLB | PLB | PLB | |||
| 45.3 | 67.41 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB | |||
| 47.1 | 70.09 | 0.625 | 15.88 | – | – | PLB | PLB | PLB | PLB | |||
| 51.2 | 76.19 | 0.687 | 17.45 | – | – | – | – | – | – | |||
| 55.3 | 80.3 | 0.75 | 19.05 | – | – | – | – | – | – | |||
| 8 5/8 | 8.625 | 219.08 | 24 | 35.72 | 0.264 | 6.71 | – | PS | – | – | – | – |
| 28 | 41.62 | 0.304 | 7.72 | PS | – | – | – | – | – | |||
| 32 | 47.62 | 0.352 | 8.94 | PS | PSLB | – | – | – | – | |||
| 36 | 53.57 | 0.4 | 10.16 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 40 | 59.53 | 0.45 | 11.43 | – | – | PLB | PLB | PLBE | PLB | |||
| 44 | 65.48 | 0.5 | 12.7 | – | – | PLB | PLB | PLBE | PLB | |||
| 49 | 72.92 | 0.557 | 14.15 | – | – | PLB | PLB | PLBE | PLB | |||
| 9 5/8 | 9.625 | 244.48 | 32.3 | 48.07 | 0.312 | 7.92 | PS | – | – | – | – | – |
| 36 | 53.57 | 0.352 | 8.94 | PS | PSLB | – | – | – | – | |||
| 40 | 59.53 | 0.395 | 10.03 | – | PSLB | PLB | PLB | PLBE | – | |||
| 43.5 | 64.73 | 0.435 | 11.05 | – | – | PLB | PLB | PLBE | PLB | |||
| 47 | 69.94 | 0.472 | 11.99 | – | – | PLB | PLB | PLBE | PLB | |||
| 53.5 | 79.62 | 0.545 | 13.84 | – | – | PLB | PLB | PLBE | PLB | |||
| 58.4 | 86.91 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB | |||
| 59.4 | 88.4 | 0.609 | 15.47 | – | – | – | – | – | – | |||
| 64.9 | 96.58 | 0.672 | 17.07 | – | – | – | – | – | – | |||
| 70.3 | 104.62 | 0.734 | 18.64 | – | – | – | – | – | – | |||
| 75.6 | 112.5 | 0.797 | 20.24 | – | – | – | – | – | – | |||
| 10 3/4 | 10.75 | 273.05 | 32.75 | 48.74 | 0.279 | 7.09 | PS | – | – | – | – | – |
| 40.5 | 60.27 | 0.35 | 8.89 | PS | PSB | – | – | – | – | |||
| 15.5 | 67.71 | 0.4 | 10.16 | – | PSB | – | – | – | – | |||
| 51 | 75.9 | 0.45 | 11.43 | – | PSB | PSB | PSB | PSBE | PSB | |||
| 55.5 | 82.59 | 0.495 | 12.57 | – | – | PSB | PSB | PSBE | PSB | |||
| 60.7 | 90.33 | 0.545 | 13.84 | – | – | – | – | PSBE | PSB | |||
| 65.7 | 97.77 | 0.595 | 15.11 | – | – | – | – | PSB | PSB | |||
| 73.2 | 108.93 | 0.672 | 17.07 | – | – | – | – | – | – | |||
| 79.2 | 117.86 | 0.734 | 18.64 | – | – | – | – | – | – | |||
| 85.3 | 126.94 | 0.797 | 20.24 | – | – | – | – | – | – | |||
| 11 3/4 | 11.75 | 298.45 | 42 | 62.5 | 0.333 | 8.46 | PS | – | – | – | – | – |
| 47 | 69.94 | 0.375 | 20.24 | – | – | – | – | – | – | |||
| 54 | 80.36 | 0.435 | 8.46 | – | – | – | – | – | – | |||
| 60 | 89.29 | 0.489 | 9.53 | – | – | – | – | – | – | |||
| 65 | 96.73 | 0.534 | 11.05 | – | – | – | – | – | – | |||
| 71 | 105.66 | 0.582 | 14.42 | – | – | – | – | – | – | |||
| 13 3/8 | 13.375 | 339.73 | 48 | 71.43 | 0.33 | 8.38 | PS | – | – | – | – | – |
| 54.5 | 81.1 | 0.38 | 9.65 | – | PSB | – | – | – | – | |||
| 61 | 90.78 | 0.43 | 10.92 | – | PSB | – | – | – | – | |||
| 68 | 101.19 | 0.48 | 12.19 | – | PSB | PSB | PSB | PSB | PSB | |||
| 72 | 107.15 | 0.514 | 13.06 | – | – | PSB | PSB | PSB | PSB | |||
| 16 | 16 | 406.4 | 65 | 96.73 | 0.375 | 9.53 | PS | – | – | – | – | – |
| 75 | 111.61 | 0.438 | 11.13 | – | PSB | – | – | – | – | |||
| 84 | 125.01 | 0.495 | 12.57 | – | PSB | – | – | – | – | |||
| 109 | 162.21 | 0.656 | 16.66 | – | P | P | P | – | P | |||
| 18 5/8 | 18.625 | 473.08 | 87.5 | 130.21 | 0.435 | 11.05 | PS | PSB | – | – | – | – |
| 20 | 20 | 508 | 94 | 139.89 | 0.438 | 11.13 | PSL | PSLB | – | – | – | – |
| 106.5 | 158.49 | 0.5 | 12.7 | – | PSLB | – | – | – | – | |||
| 133 | 197.93 | 0.635 | 16.13 | – | PSLB | – | – | – | – | |||
| P——Plain；S——Short-thread；L——Long-thread；B——Buttress thread；E——Extreme thread | ||||||||||||
| Group | Steel | Type | C | Mn | Mo | Cr | Ni | Cu | P | S | Si | ||||
| Grade | min. | max. | min. | max. | min. | max. | min. | max. | min. | max. | max. | max. | max. | ||
| 1 | H40 | – | – | – | – | – | – | – | – | – | – | – | 0.03 | 0.03 | – |
| J55 | – | – | – | – | – | – | – | – | – | – | – | 0.03 | 0.03 | – | |
| K55 | – | – | – | – | – | – | – | – | – | – | – | 0.03 | 0.03 | – | |
| N80 | 1 | – | – | – | – | – | – | – | – | – | – | 0.03 | 0.03 | – | |
| Q | – | – | – | – | – | – | – | – | – | – | 0.03 | 0.03 | – | ||
| 2 | M65 | – | – | – | – | – | – | – | – | – | – | – | 0.03 | 0.03 | – |
| L80 | 1 | – | 0.43 | – | 1.9 | – | – | – | – | 0.25 | 0.35 | 0.03 | 0.03 | 0.5 | |
| 9Cr | – | 0.15 | 0.3 | 0.6 | 0.9 | 1.1 | 8 | 10 | 0.5 | 0.25 | 0.02 | 0.01 | 1 | ||
| 13Cr | 0.15 | 0.22 | 0.25 | 1 | – | – | 12 | 14 | 0.5 | 0.25 | 0.02 | 0.01 | 1 | ||
| C90 | 1 | – | 0.35 | – | 1.2 | 0.25 | 0.85 | – | 1.5 | 0.99 | – | 0.02 | 0.01 | – | |
| 2 | – | 0.5 | – | 1.9 | – | NL | – | NL | 0.99 | – | 0.03 | 0.01 | – | ||
| C95 | – | – | 0.45 | – | 1.9 | – | – | – | – | – | – | 0.03 | 0.03 | 0.5 | |
| T95 | 1 | – | 0.35 | – | 1.2 | 0.25 | 0.85 | 0.4 | 1.5 | 0.99 | – | 0.02 | 0.01 | – | |
| 2 | – | 0.5 | – | 1.9 | – | – | – | – | 0.99 | – | 0.03 | 0.01 | – | ||
| 3 | P110 | – | – | – | – | – | – | – | – | – | – | – | 0.03 | 0.03 | – |
| 4 | Q125 | 1 | – | 0.35 | – | 1.35 | – | 0.85 | – | 1.5 | 0.99 | – | 0.02 | 0.01 | – |
| 2 | – | 0.35 | – | 1 | – | NL | – | NL | 0.99 | – | 0.02 | 0.02 | – | ||
| 3 | – | 0.5 | – | 1.9 | – | NL | – | NL | 0.99 | – | 0.03 | 0.01 | – | ||
| 4 | – | 0.5 | – | 1.9 | – | NL | – | NL | 0.99 | – | 0.03 | 0.02 | – | ||
| a. The carbon content for L80 may be increased up to 0, 50 % maximum if the product is oil-quenched. | |||||||||||||||
| b. The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the WT is less than 17, 78 mm. | |||||||||||||||
| c. The carbon content for R95 may be increased up to 0, 55 % maximum if the product is oil-quenched. | |||||||||||||||
| d. The molybdenum content for T95 Type 1 may be decreased to 0, 15 % minimum if the WT is less than 17, 78 mm. | |||||||||||||||
| e. For EW Grade P110, the phosphorus content shall be 0,020 % maximum and the sulfur content 0,010 % maximum | |||||||||||||||
| NL = no limit. Elements shown shall be reported in product analysis. | |||||||||||||||
Mechanical Properties of OCTG casing pipe
| Tensile and Hardness Requirements | |||||||||
| Grade | Type | Total Elongation Under Load | Yield strength MPa | Tensile strength MPa | Hardness a,c max | Specified Wall Thickness | Allowable Hardness Variation b | ||
| min | max | min | HRC | HBW | mm | HRC | |||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| H40 | – | 0.5 | 276 | 552 | 414 | – | – | – | |
| J55 | – | 0.5 | 379 | 552 | 517 | – | – | – | |
| K55 | – | 0.5 | 379 | 552 | 655 | – | – | – | |
| N80 | 1 | 0.5 | 552 | 758 | 689 | – | – | – | |
| N80 | Q | 0.5 | 552 | 758 | 689 | – | – | – | |
| R95 | – | 0.5 | 655 | 758 | 724 | – | – | – | |
| L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 | – | |
| L80 | 9Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | – | |
| L80 | 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | – | |
| C90 | 1 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | ≤12.70 12.71 to 19.04 19.05 to 25.39 ≥25.40 | 3.0 4.0 5.0 6.0 |
| T95 | 1 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | ≤12.70 12.71 to 19.04 19.05 to 25.39 ≥25.40 | 3.0 4.0 5.0 6.0 |
| C110 | – | 0.7 | 758 | 828 | 793 | 30 | 286 | ≤12.70 12.71 to 19.04 19.05 to 25.39 ≥25.40 | 3.0 4.0 5.0 6.0 |
| P110 | – | 0.6 | 758 | 965 | 862 | – | – | – | – |
| Q125 | 1 | 0.65 | 862 | 1034 | 931 | b | – | ≤12.70 12.71 to 19.04 19.05 | 3.0 4.0 5.0 |
| a In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee method. b No hardness limits, but the maximum variation is restricted as a manufacturing control in accordance with 7.8 and 7.9. c For through-wall hardness tests of Grades L80(all types), C90, T98 and C110, the requirements stated in HRC scale are for maximum mean hardness number. | |||||||||
Steel ingot heating → hydraulic punching → reheating → extension → periodic rolling → reheating → sizing → cooling → straightening
→ pipe cutting → inspection
Color Codes for API 5CT Casing and Tubing:
Packing & Loading
Casing Pipe is transported in containers