OCTG Seamless Casing Pipe 4.5-20 Inch API 5CT Certified with Multiple Thread Types
High-performance alloy steel seamless casing pipes for oil and gas applications. Features 4.5-20 inch diameter range, API 5CT certification, and multiple thread connection options including BTC, LTC, and STC. Available in various steel grades from J55 to P110 with superior mechanical properties for demanding environments.
Place of Origin
China
Size OD
4 1/2"- 20"
Packaging Details
Be bundled by steel strap
Standard
API 5CT
Material
Alloy steel
Model Number
4 1/2"-20"
Product Description
OCTG Seamless Casing Pipe Overview
High-performance alloy steel seamless casing pipes designed for oil and gas applications, featuring API 5CT certification and multiple thread connection options.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | Oil Casing Pipe |
| Diameter Range | 4 1/2" - 20" |
| Steel Grades | J55/K55, N80-1, N80Q, L80, C90, T95, P110 |
| Connection Types | PE, STC, LTC, BTC, EU, IEU, Top, New |
| Certification | API 5CT |
Key Features
- Alloy steel seamless construction for superior strength
- Diameter range from 4 1/2" to 20" for versatile applications
- Multiple API thread types including BTC, LTC, and STC
- R3 length range for flexible installation requirements
- API 5CT certified for quality assurance
Mechanical Properties
| Grade | Yield Strength (Min) | Tensile Strength (Min) | Hardness (Max) |
|---|---|---|---|
| J55 | 55,000 Psi / 379 Mpa | 80,000 Psi / 552 Mpa | - |
| K55 | 55,000 Psi / 379 Mpa | 88,000 Psi / 552 Mpa | - |
| N80 | 80,000 Psi / 552 Mpa | 110,000 Psi / 758 Mpa | - |
| N80-1 | 80,000 Psi / 552 Mpa | 95,000 Psi / 655 Mpa | 23 HRC / 241 BHN |
| C90 | 90,000 Psi / 621 Mpa | 105,000 Psi / 724 Mpa | 25.4 HRC / 255 BHN |
| C95 | 95,000 Psi / 655 Mpa | 110,000 Psi / 758 Mpa | - |
| T95 | 95,000 Psi / 655 Mpa | 110,000 Psi / 758 Mpa | 25.4 HRC / 255 BHN |
| P110 | 110,000 Psi / 758 Mpa | 140,000 Psi / 965 Mpa | - |
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