
API 5CT N80 Casing Pipe
N80 Casing Tubing
Grade N80 Seamless Tubing
Table of contents
API 5CT N80 Casing Pipe Specifications
5CT N80 welding Casing Pipe Size
API 5CT N80 PSL2 Pipe Size
5CT N80 welding Casing Pipe Size
API 5CT Steel Casing Pipe Length
API 5CT N80 Petroleum Casing Pipe Schedule
API 5CT N80 Seamless Casing Third Party Inspection Agency
API 5ct Oil Casing Pipe Marking
Manufacturing types of API 5CT N80 Steel Pipes
Coating of 5CT N80 welding Casing Pipe
Certificates of API 5CT Grade N80 Welded Pipes
API 5CT N80 PSL2 Pipe Value added service
API 5CT N80 Steel Casing Pipes Yield strength
Welding methods of API 5CT N80 Casing Seamless Pipes
Testing requirements of API 5CT N80 Oil Casing Pipes
End type of API 5CT N80 Casing Pipes
Dimensional Standard of API 5CT L80 Casing Pipe
API 5CT psl2 pipe Transportation
API 5CT Steel Casing Pipe Cutting Facility
API N80 Casing Seamless Pipes Grades
Protection Caps of API 5CT N80 Casing Tubing
Equivalent standards of API-5CT N80 Casing Pipe
Origins of API 5CT N80 Oil Casing Pipe
5CT N80 welding Casing Pipe Packaging
Other Testing of API 5CT N80 Welded Steel Pipe
Application of API 5CT Grade N80 type Q casing pipe
API 5CT Grade N80 Tubing Production process
API 5CT Grade N80 Type Q Casing Steel Pipes Brands
API 5ct N80 Chemical Composition
| Element | |||||||
| N80 | ≤0.02 | ≤0.01 | ≤0.42 | ≤0.45 | ≤1.90 | ≤0.25 | ≤0.25 |
Types of 5CT N80 welding Casing Pipe

API 5CT N80 Casing Pipe

API 5CT Grade N80 PSL1 Welded Pipe

API 5CT Grade N80 Oil Well Drilling Casing Pipes

API 5CT Grade N80 PSL2 Round Pipe

5CT N80 Seamless Casing

API 5CT Gr N80 Carbon Steel Seamless Tubing

Gr N80 ERW Pipe

API 5CT Grade N80 Type Q Casing Steel Pipes

Grade N80 Petroleum Casing Pipe

API 5ct Oil Casing Pipe
Thread types of API 5CT N80-Q Casing Tubing
01
Yield strength (min) : 552 - 758
02
Tensile Strength (min): ≥689
03
Elongation : ≥18%
| Grade | WT (mm) | Elongation | Type | Yield Strength | Hardness Max | Tensile Strength | ||
|---|---|---|---|---|---|---|---|---|
| Max | Min | Brinell | Rockwell | Min | ||||
| L 80 | - | 1/2 | 1 | 687 | 548 | 337 | 23 | 687 |
| Q 125 | 12.70 - 19.05 | 13/20 | 1 | 1034 | 862 | - | b | 931 |
| T 95 | 12.70 - 25.40 | 1/2 | 1 | 758 | 655 | 332 | 26 | 724 |
| C 110 | 12.70 - 25.40 | 7/10 | - | 828 | 758 | 286 | 30 | 793 |
| L 80 | - | 1/2 | 9 Cr | 655 | 552 | 241 | 23 | 655 |
| N 80 | - | 1/2 | Q | 758 | 552 | - | - | 689 |
| L 80 | - | 1/2 | 13 Cr | 655 | 552 | 241 | 23 | 655 |
| C 90 | 12.70 - 25.40 | 1/2 | 1 | 724 | 621 | 255 | 25.4 | 689 |
| P 110 | - | 3/5 | - | 923 | 639 | - | - | 826 |
| K 55 | - | 1/2 | - | 552 | 379 | - | - | 655 |
| H 40 | - | 1/2 | - | 552 | 276 | - | - | 414 |
| J 55 | - | 1/2 | - | 552 | 379 | - | - | 517 |
| N 80 | - | 1/2 | 1 | 758 | 552 | - | - | 689 |
| M 65 | - | 1/2 | - | 687 | 548 | 337 | 23 | 687 |
| R 95 | - | 1/2 | - | 758 | 655 | - | - | 724 |
API 5CT Gr. N80 Casing Tubing Color Code
| Name | N 80 1 | N 80 Q |
|---|---|---|
| Coupling | red coupling | red coupling/ green band |
| Casing | Bright red band | Bright red band/ green band |
| Elements | OD | WT | Weight | Processing types | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | mm | kg/m | H40 | M65 | J55 | L80 | C90d | N801 | Q125d | P110 | ||
| inch | lbs/feet | K55 | C95 | T95d | N80Q | |||||||
| 4, 1, 2 | 10.5 | 114.3 | 5.69 | 15.63 | , | SB | SB | |||||
| 5 | 18 | 127 | 9.19 | 26.79 | LB | LB | LB | |||||
| 4 1 2 | 11.6 | 114.3 | 6.35 | 17.26 | SLB | LB | LB | |||||
| 5 | 15 | 127 | 7.52 | 22.32 | SLB | LB | LB | |||||
| 4 1 2 | 15.1 | 114.3 | 8.56 | 22.47 | LB | LB | ||||||
| 5 1 2 | 14 | 139.7 | 6.2 | 20.83 | S | S | S | |||||
| 5 | 21.4 | 127 | 11.1 | 31.85 | LB | LB | LB | |||||
| 5 1 2 | 17 | 139.7 | 7.72 | 25.3 | LB | SLB | LB | LB | ||||
| 6 5 8 | 24 | 168.28 | 8.94 | 35.72 | LB | SLB | LB | LB | ||||
| 5 1 2 | 15.5 | 139.7 | 6.98 | 23.07 | SLB | SLB | ||||||
| 5 | 24.1 | 127 | 12.7 | 35.86 | LB | LB | ||||||
| 5 1 2 | 23 | 139.7 | 10.54 | 34.23 | LB | L B | LB | LB | ||||
| 6 5 8 | 20 | 168.28 | 7.32 | 29.76 | S | SLB | SLB | |||||
| 7 5 8 | 42.8 | 193.68 | 14.27 | 63.69 | LB | LB | ||||||
| 7 | 35 | 177.8 | 12.65 | 52.09 | LB | LB | ||||||
| 8 5 8 | 24 | 219.08 | 6.71 | 35.72 | S | S | ||||||
| Codes | OD | WT | Weight | Processing type | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | mm | kg/mr | H40 | M65 | J55 | L80 | C90d | N80 | Q125d | P110 | ||
| Inch | Lbs/Feet | K55 | C95 | T95d | 1, Q | |||||||
| 9 5 8 | 32.3 | 244.48 | 7.92 | 48.07 | S | |||||||
| 10 3 4 | 40.5 | 273.05 | 8.89 | 60.27 | S | SB | SB | |||||
| 11 3 4 | 42 | 298.45 | 8.46 | 62.5 | S | |||||||
| 13 3 8 | 48 | 339.72 | 8.38 | 71.43 | S | |||||||
| 16 | 84 | 406.4 | 12.57 | 125.01 | SB | SB | ||||||
| 18 5 8 | 87.5 | 473.08 | 11.05 | 130.21 | S | SB | SB | |||||
| 16 | 75 | 406.4 | 11.13 | 111.61 | SB | SB | ||||||
| 20 | 133 | 508 | 16.13 | 197.93 | SLB | |||||||
API 5CT N80 Casing Dimension Chart
| Size | Weight | OD | WT | Finish | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade | ||||||||||
| mm | Inch | mm | Inch | L 80 | J 55 K 55 | N 80 | P 110 | C 90 T 95 | ||
| 4 1/2 | 9.50 | 114.3 | 4.500 | 5.21 | 0.205 | PS | ||||
| 10.50 | 5.69 | 0.224 | PSB | |||||||
| 13.50 | 7.37 | 0.290 | PLB | PLB | PLB | PLB | ||||
| 11.60 | 6.35 | 0.250 | PLB | PSLB | PLB | PLB | PLB | |||
| 15.10 | 9.56 | 0.337 | PLB | |||||||
| 5 | 11.50 | 127.00 | 5.00 | 5.59 | 0.220 | PS | ||||
| 13.00 | 6.43 | 0.253 | PSLB | |||||||
| 18.00 | 9.19 | 0.362 | PLB | PLB | PLB | PLBE | ||||
| 15.00 | 7.52 | 0.296 | PLB | PSLB | PLB | PLB | PLBE | |||
| 21.40 | 11.10 | 0.437 | PLB | PLB | PLB | PLB | ||||
| 24.10 | 12.70 | 0.500 | PLB | |||||||
| 23.20 | 12.14 | 0.478 | PLB | |||||||
| 5 1/2 | 14.00 | 139.7 | 5.500 | 6.20 | 0.244 | PS | ||||
| 17.00 | 7.72 | 0.304 | PLB | PSLB | PLB | PLB | PLBE | |||
| 15.50 | 6.98 | 0.275 | PSLB | |||||||
| 23.00 | 10.54 | 0.415 | PLB | PLB | PLB | PLBE | ||||
| 20.00 | 9.17 | 0.361 | PLB | PLB | PLB | PLBE | ||||
| 6 5/8 | 20.00 | 168.28 | 6.625 | 7.32 | 0.288 | PSLB | ||||
| 24.00 | 8.94 | 0.352 | PLB | PSLB | PLB | PLB | PLBE | |||
| 32.00 | 12.06 | 0.475 | PLB | PLB | PLB | PLBE | ||||
| 28.00 | 10.59 | 0.417 | PLB | PLB | PLB | PLBE | ||||
| 7 | 17.00 | 177.80 | 7.00 | 5.87 | 0.231 | |||||
| 23.00 | 8.05 | 0.317 | PLB | PSLB | PLB | PLBE | ||||
| 20.00 | 6.91 | 0.272 | PS | |||||||
| 26.00 | 9.19 | 0.362 | PLB | PSLB | PLB | PLB | PLBE | |||
| 32.00 | 11.51 | 0.453 | PLB | PLB | PLB | PLBE | ||||
| 29.00 | 10.36 | 0.408 | PLB | PLB | PLB | PLBE | ||||
| 38.00 | 13.72 | 0.540 | PLB | PLB | PLB | PLBE | ||||
| 35.00 | 12.65 | 0.498 | PLB | PLB | PLB | PLBE | ||||
| 7 5/8 | 24.00 | 193.68 | 7.625 | 7.62 | 0.300 | |||||
| 29.70 | 9.52 | 0.375 | PLB | PLB | PLB | PLBE | ||||
| 26.40 | 8.33 | 0.328 | PLB | PSLB | PLB | PLB | PLBE | |||
| 33.70 | 10.92 | 0.430 | PLB | PLB | PLB | PLBE | ||||
| 47.10 | 15.88 | 0.625 | PLB | PLB | PLB | PLB | ||||
| 42.80 | 14.27 | 0.562 | PLB | PLB | PLB | PLB | ||||
| 39.00 | 12.70 | 0.500 | PLB | PLB | PLB | PLBE | ||||
| 45.30 | 15.11 | 0.595 | PLB | PLB | PLB | PLB | ||||
| 8 5/8 | 24.00 | 219.08 | 8.625 | 6.71 | 0.264 | PS | ||||
| 32.00 | 8.94 | 0.352 | PSLB | |||||||
| 28.00 | 7.72 | 0.304 | ||||||||
| 49.00 | 14.15 | 0.557 | PLB | PLB | PLB | PLBE | ||||
| 36.00 | 10.16 | 0.400 | PLB | PSLB | PLB | PLB | PLBE | |||
| 44.00 | 12.70 | 0.500 | PLB | PLB | PLB | PLBE | ||||
| 40.00 | 11.43 | 0.450 | PLB | PLB | PLB | PLBE | ||||
| 9 5/8 | 32.30 | 244.48 | 9.625 | 7.92 | 0.312 | |||||
| 40.00 | 10.03 | 0.395 | PLB | PSLB | PLB | PLBE | ||||
| 36.00 | 8.94 | 0.352 | PSLB | |||||||
| 43.50 | 11.05 | 0.435 | PLB | PLB | PLB | PLBE | ||||
| 53.50 | 13.84 | 0.545 | PLB | PLB | PLB | PLBE | ||||
| 47.00 | 11.99 | 0.472 | PLB | PLB | PLB | PLBE | ||||
| 58.40 | 15.11 | 0.595 | PLB | PLB | PLB | PLB | ||||
| 10 3/4 | 32.75 | 273.05 | 10.75 | 7.09 | 0.279 | |||||
| 65.70 | 15.11 | 0.595 | PSB | PSB | ||||||
| 40.50 | 8.89 | 0.350 | PSB | |||||||
| 51.00 | 11.43 | 0.450 | PSB | PSB | PSB | PSB | PSBE | |||
| 15.50 | 10.16 | 0.400 | PSB | |||||||
| 60.70 | 13.84 | 0.545 | PSB | PSBE | ||||||
| 55.50 | 12.57 | 0.495 | PSB | PSB | PSB | PSBE | ||||
| 13 3/8 | 48.00 | 339.73 | 13.375 | 8.38 | 0.330 | |||||
| 61.00 | 10.92 | 0.430 | PSB | |||||||
| 54.50 | 9.65 | 0.380 | PSB | |||||||
| 72.00 | 13.06 | 0.514 | PSB | PSB | PSB | PSB | ||||
| 68.00 | 12.19 | 0.480 | PSB | PSB | PSB | PSB | PSB | |||
| 16 | 65.00 | 406.40 | 16 | 9.53 | 0.375 | |||||
| 84.00 | 12.57 | 0.495 | PSB | |||||||
| 75.00 | 11.13 | 0.438 | PSB | |||||||
| 18 5/8 | 18.625 | 87.50 | 0.435 | 473.08 | 11.05 | PSB | ||||
| 20 | 94.00 | 508.00 | 20 | 11.13 | 0.438 | PSLB | ||||
| 133.00 | 16.13 | 0.635 | PSLB | |||||||
| 106.50 | 12.70 | 0.500 | PSLB | |||||||
| OD (inch) | WT | T and C in feet | PE (feet) | API | Grades |
|---|---|---|---|---|---|
| 2.375 | .190 | 4.7 | 4.44 | 1.901 | P110, L80, J-FBNAU, N80, J55 |
| 2.875 | .217 | 6.5 | 6.17 | 2.347 | P110, L80, J-FBNAU, N80, J55 |
| 3.5 | .254 | 9.3 | 8.81 | 2.867 | P110, J-FBNAU, J55, N80, L80 |
Sizes of API 5CT N80 Welded Steel Pipe
| Pipe and Oilfield Casing Sizes, Casing Drift Sizes | |
|---|---|
| OD | 4 1/2" - 20" |
| Standard Sizes | |
| Thread Type | Buttress, Long / Short round |
| Function | Protects tubing pipe |
| Pipe names | Specification | Steel Grade | Standard | ||
|---|---|---|---|---|---|
| S | D | L | |||
| mm | mm | m | |||
| Petroleum Casing Pipe | 5.21 - 16.66 | 127 - 508 | 6 - 12 | J55. M55. K55. L80. N80. P110. |
API Spec 5CT |
| Coupling | 12.5 - 15 | 127 - 533.4 | 6 - 12 | ||
| Petroleum Tubing | 2.87 - 16.00 | 26.7 - 114.3 | 6 - 12 | ||
API 5CT N80 Oil Casing Pipe Weight Chart
| Size | Weight |
|---|---|
| 20 | 94 |
| 133 | |
| 16 | 65 |
| 84 | |
| 109 | |
| 13 3/8 | 48 |
| 61 | |
| 72 | |
| 10 3/4 | 32.75 |
| 40.50 | |
| 51 | |
| 55.50 | |
| 65.70 | |
| 9 5/8 | 32.30 |
| 40 | |
| 47 | |
| 58.40 | |
| 8 5/8 | |
| 28 | |
| 36 | |
| 44 | |
| 49 | |
| 7 5/8 | 24 |
| 26.40 | |
| 33.70 | |
| 42.80 | |
| 47.10 | |
| 7 | 17 |
| 20 | |
| 26 | |
| 32 | |
| 38 | |
| 6 5/8 | 20 |
| 28 | |
| 32 | |
| 5 1/2 | 14 |
| 15.50 | |
| 17 | |
| 20 | |
| 23 | |
| 5 | 11.50 |
| 15 | |
| 18 | |
| 23.20 | |
| 24.10 | |
| 4 1/2 | 9.50 |
| 11.60 | |
| 15.10 |
Tolerance of API 5LC CRA Line Pipe
| Product | Tolerance | |
|---|---|---|
| WT | - 12.6% | |
| OD | Pipe body | D ≤ 102.60 ± 0.78mm |
| - 0.6% | ||
| D ≥ 115.30 + 1.0% | ||
| Weight | Total | - 1.75 |
| Single | +6.5 +3.5% | |
Inspection Method of API 5CT N80 Casing Pipe