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oil well casing sizes
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Product Details
| Thickness | 0.625, 0.8125 | Section Shape | Round | |
| Outer Diameter | 3.5 - 6.625 inch | Place of Origin | Shaanxi, China | |
| Secondary Or Not | Non-secondary | Application | Drill Pipe | |
| Technique | Cold Rolled | Certification | API | |
| Surface Treatment | Copper Coated | Special Pipe | API Pipe | |
| Alloy Or Not | Is Alloy |
Product Description
Oil well casing sizes
Standard:API SPEC 5CT Standard.
Use: Seamless steel tubes for oil casing and tubing in oil and gas well. Casing pipe is the steel pipe to support the wall of oil and gas wells, divided into surface casing, protective casing and production casing.
Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size: 4 1/2”~20” for Seamless Casing
1.05”~4 1/2” for Seamless Tubing
Length: R1/R2/R3
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:
Standard | Models of steel tubes | Chemical compositions (%) | ||||||||||
C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Als | ||
API SPEC 5CT | J55K55 (37Mn5) | 0.34~ 0.39 | 0.2~ 0.35 | 1.25~ 1.5 | ≤0.02 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 |
|
| ≤0.02 |
N80 (36 Mn2V) | 0.34~ 0.38 | 0.2~ 0.35 | 1.45~ 1.7 | ≤0.02 | ≤0.015 | ≤0.15 |
|
|
| 0.11~ 0.16 | ≤0.02 | |
L80 (13Cr) | 0.15~ 0.22 | ≤1.0 | 0.25~ 1.0 | ≤0.02 | ≤0.010 | 12.0~ 14.0 | ≤0.20 | ≤0.20 |
|
| ≤0.02 | |
P110 (30CrMo) | 0.26~ 0.35 | 0.17~ 0.37 | 0.40~ 0.7 | ≤0.02 | ≤0.010 | 0.8~1.1 | ≤0.20 | ≤0.20 | 0.15~ 0.25 | ≤0.08 | ≤0.02 | |
Note: Also we can supply you pup joint and coupling (coupling stock and coupling blank) for tubing and Casing, as well as for weld pipe.
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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