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  • API drill pipe specifications
  • api drill pipe
  • api drill pipe
  • api drill pipe

Drill Pipe

Api Drill pipe is made from alloy steel. Acc.to API Spec.5DP. All threads are phosphated, copperized or cold worked. All connections are equipped with pressed steel thread protectors.

■ Precauciones

Drill pipe is made from alloy steel. Acc.to API Spec.5DP. All threads are phosphated, copperized or cold worked. All connections are equipped with pressed steel thread protectors. All threads are machined with CNC Lathes-Double-shouldered and special threads.

◆API Drill Pipe Size

Size
(inch)
Weight 
Designation
(PPF)
Calculated 
Weight
Wall 
Thickness
Grade Upset Ends Tools Joint 
Designation
lb/ft kg/m in mm
2 3/8 6.65 6.27 9.33 0.280 7.11 E、X、G、S EU NC26
2 7/8 10.40 9.72 14.47 0.362 9.19 E、X、G、S EU、IU NC31
3 1/2 9.50 8.81 13.12 0.254 6.45 E、X、G、S EU、IU NC38
3 1/2 13.30 12.32 18.34 0.368 9.35 E、X、G、S EU、IU NC38、
NC40
3 1/2 15.50 14.64 21.79 0.449 11.4 E、X、G、S EU、IEU NC38、
NC40
4 14.00 12.95 19.27 0.330 8.38 E、X、G、S EU、IU NC40
4 1/2 13.75 12.25 18.23 0.271 6.88 E、X、G、S EU、IU NC46
4 1/2 16.60 15.00 22.32 0.337 8.56 E、X、G、S EU、IU NC46
4 1/2 20.00 18.71 27.84 0.430 10.92 E、X、G、S EU、IU NC46
5 16.25 14.88 22.16 0.296 7.52 E、X、G、S IU NC50
5 19.50 17.95 26.70 0.362 9.19 E、X、G、S IEU NC50
5 25.60 24.05 35.80 0.500 12.7 E、X、G、S IEU NC50
5 1/2 21.90 19.83 29.52 0.361 9.17 E、X、G、S IEU 5 1/2FH
5 1/2 24.70 22.56 33.57 0.415 10.54 E、X、G、S IEU 5 1/2FH
6 5/8 25.20 22.21 33.04 0.330 8.38 E、X、G、S IEU 5 1/2FH
6 5/8 27.72 24.24 36.06 0.362 9.19 E、X、G、S IEU 5 1/2FH

 

Main Technical Parameters

Api Drill Pipe Specifications:

◆ Mechanical Properties

Steel Grade Yield Strength Tensile strength Elongation Impact AKV(J)
Min Max Min MIN 10*10
psi Mpa psi Mpa psi Mpa % (-20℃)
E75 75000 517 105000 724 100000 689 API 5DP ≥95
X97 95000 655 125000 862 105000 724 ≥81
G105 105000 724 135000 931 115000 793 ≥68
S135 135000 931 165000 1138 145000 1000 ≥54


◆ Mechanical Properties for welding zone

Steel Grade Min.Yield Strength
σt  Mpa
Min.Tensile 
Strength σb Mpa
Min.Elongation % Min Impact AKV(J)
E75 517 689 13 ≥30 10*10 20℃
X97 609 712
G105 655 724
S135 724 793