Drill Pipes
Drill pipes form the main section of the drill string. They transmit rotary torque to the drill bit while circulating drilling fluid to the bottom of the well.
Because drill pipe operates under tension, torque, and internal pressure, material grade and inspection quality play an important role in performance. For this reason, drill pipes are manufactured to recognized industry standards and supplied in several strength grades.
Standard Specifications
| Item | Description |
|---|---|
| Product Type | Seamless drill pipe |
| Standards | API 5DP |
| Inspection Options | DS-1, NS-2, NS-3 |
| Common Grades | E-75, X-95, G-105, S-135 |
| Typical Application | Onshore and offshore drilling |
Common Grades
- E-75 – Suitable for standard drilling conditions
- X-95 – Higher strength for deeper wells
- G-105 – Widely used in many drilling programs
- S-135 – Preferred for high-load and extended reach wells
Why Grade Selection Matters
The selected grade affects tensile strength, torque capacity, and fatigue resistance. Therefore, matching the pipe specification to the drilling program helps improve service life and operational reliability.
Ordering Information
Please provide the pipe size, weight, grade, tool joint type, and inspection requirement. Then our team can recommend the appropriate drill pipe for your project.



