API 5DP Oil Drill Pipe

API 5DP Oil Drill Pipe

Specifications                             　　

1. Non-Standards     　　

2. OD: 79.4mm-279.4mm     　　

3. Certifactes: ISO ,API 7-1   　　

4. Moq: 2tons         　　

5. Spiral Drill Collar DC  

Integral heavy weight Drill Pipe   

The drill pipe are made of modified AISI 4145H chromium molybdenum alloy steel. These drill collar bars are full-length heat treated and water quenched to obtain ASTM A-370 mechanical properties. Full mechanical and chemical mill test certifications are supplied with all drill collars. These mill test certifications guarantee a hardness range of 285 to 341 BHN and an impact value of 40 ft.-lbs. at room temperature one inch below the surface.

Features:

1. Usage: One of the most important components of the drill string is to provide drilling bit ofpressure and the drill string rigid role. 　　

2. Standard: API 7, API 7-1 and SY/T standards.       　　

3. Material: AISI 4145 H .              　　                           

4. Types: drill pipes anddrill collars     　　

5. Size: OD : 3 1/8" ---11", Length: 10'---31' 

6. Brand: ROSCHEN