API 7-1 Heavy Weight Drill Pipe

Provides a transitional stiffness zone between drill pipe and drill collars. Reduces fatigue failures and enables directional drilling.

Specification Details
Standard API 7-1, DS-1
OD Range 3-1/2″ to 6-5/8″
Tool Joints NC38, NC40, NC46, NC50, 5-1/2 FH, 6-5/8 FH
Features Center Upset / Wear Pad, Long Tool Joints
Material Grade 4145H Modified, Sour Service Options Available

Sub-Products:

· Standard HWDP
· Sour Service HWDP
· Spiral HWDP
· Non-Magnetic HWDP (Monel)