Home > Products > Pipe Series > API 5CT casing pipe for petroleum drilling/ N80 seamless steel casing pipe/ high quality 4 1/2" ~ 20" casing pipe
API 5CT casing pipe for petroleum drilling/ N80 seamless steel casing pipe/ high quality 4 1/2" ~ 20" casing pipe
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Product Details
| Thickness | 0.205, 0.635 | Section Shape | Round | |
| Outer Diameter | 4.5 - 20 inch | Place of Origin | China | |
| Secondary Or Not | Non-secondary | Application | Oil Pipe | |
| Technique | Cold Rolled | Certification | API | |
| Surface Treatment | Copper Coated | Special Pipe | API Pipe | |
| Alloy Or Not | Is Alloy |
Product Description
Specifications
Standard:API SPEC 5CT Standard.Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size: 4 1/2"~20" for Seamless Casing
Standard:API SPEC 5CT Standard.
Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size: 4 1/2"~20" for Seamless Casing
Length: R1/ R2/ R3
Thread:STC/ BTC/ LTC/ VAM TOP
Dimensional tolerances:
Types of steel tubes | Outer diameter | Wall thickness | |
Cold-rolled tubes | Tube sizes(mm) | Tolerances(mm) | Tolerances(mm) |
<114.3 | ±0.79 | -12.5% | |
≥114.3 | -0.5%, +1% | ||
Mechanical properties:
Standard | Models of steel tubes | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) | Hardness |
API SPEC 5CT | J55 | ≥517 | 379~552 | check the table | ≤241HB |
K55 | ≥517 | ≥655 | |||
N80 | ≥689 | 552~758 | |||
L80(13Cr) | ≥655 | 552~655 | |||
P110 | ≥862 | 758~965 |
Chemical Composition:
API CASING LIST |
Size in | Linear Mass | Outside Diameter | Wall Thickness | Type of end-finish | |||||||||
Grade | |||||||||||||
ln. | mm | ln. | mm | H-40 | J-55 | M-65 | L-80 | N-80 Type1,Q | C-90 | P-110 | Q-125 | ||
4 1/2” | 9.5 | 4.500 | 114.30 | 0.205 | 5.21 | PS | PS | PS | -- | -- | -- | -- | -- |
10.50 | 4.500 | 114.30 | 0.224 | 5.69 | — | PSB | PSB | -- | -- | -- | -- | -- | |
11.60 | 4.500 | 114.30 | 0.250 | 6.35 | -- | PSLB | PLB | PLB | PLB | PLB | PLB | -- | |
13.50 | 4.500 | 114.30 | 0.290 | 7.37 | -- | -- | PLB | PLB | PLB | PLB | PLB | -- | |
15.10 | 4.500 | 114.30 | 0.337 | 8.56 | -- | -- | -- | -- | -- | -- | PLB | PLB | |
| |||||||||||||
18 5/8” | 87.50 | 18.625 | 473.08 | 0.435 | 11.05 | PS | PSB | PSB | - | - | - | - | - |
20” | 94.00 | 20.000 | 508.00 | 0.438 | 11.13 | PSL | PSLB | PSLB | - | - | - | - | - |
106.50 | 20.000 | 508.00 | 0.500 | 12.70 | - | PSLB | PSLB | - | - | - | - | - | |
133.00 | 20.000 | 508.00 | 0.635 | 16.13 | - | PSLB | - | - | - | - | - | - |
Contact Us
- Shaanxi Senwell Import & Export Co., Ltd.
- Contact nameJenny Zhang Chat Now
- Phone86-29-85370919
- Address1623, Unit 1, Bldg. 2, I Duhui, Yicuiyuan, Tangyan South Road, High-Tech Zone
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