Integral Heavy Weight Drill Pipe - Aisi 4145h, 3 1/2 To 6 5/8 Inch Od, Api Spec7-1 Compliant, Premium Alloy Steel With Welded Hardbands

Features of Integral Heavy Weight Drill Pipe:
Material:AISI 4145H
Standard: API Spec7-1
1.Heavy weight drill pipe, API Heavy weight drill pipe, HWDP
2. Material: AISI 4145H
3. OD: 3 1/2 6 5/8"

A. Integral Heavy Weight Drill Pipe
Note: The wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its structure is similar with drill pipe.
It is made from premium alloyed steel. Its both tool joints and middle upset are welded hardbands. Technical parameters
meet with API Spec7-1 Standard.

B. Integral Spiral Heavy Weight Drill Pipe
Note: Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove
on heavy weight drill pipe.