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drill pipe

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Drill pipes 

1) OD: 23/8 "2 7/8", 3 1/2", 4 1/2", 5" 
2) Grade:DZ50, R780, G105, S135. 
3) Drill Pipe is according to API5DP

drill pipe


1. High precision in size and shape

2. Good low temperature toughness

3. Excellent comprehensive mechanical properties

4. High connection strength and sealability

5. Large inside diameter of tool joint

6. High  torque resistance

7. High fatigue strength and long fatigue life

Drill Pipe 
Thickness Style Steel Grade Pipe Wall 
Outside Diameter 
of Thick Side
Inside Diameter 
of Thick Side
Φ60 External Upset DZ50,R780 6/7.11 Φ65 Φ46
G105 7.11 Φ65 Φ40
Φ73 External Upset DZ50,R780 9 Φ81 Φ54
G105 9.19 Φ81 Φ49
Φ89 External Upset DZ50,R780 10 Φ98 Φ66
G105 9.35 Φ98 Φ63.5
Φ114  Internal&External Upset DZ50,R780 8 Φ127 Φ92
G105 8.56 Φ119 Φ73
External Upset G105 8.56 Φ127 Φ90.5
Φ127  Internal&External Upset DZ50,R780 10 Φ130 Φ90.5
G105 9.19 Φ130 Φ90.5

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