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API drill pipe

 

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API Oil Drill Pipe 

Dimension:

Size designation Calculated weight Tool joint designation Calculated weight grade Wall thickness Upset ends
in 1b/ft Kg/m 　 in mm
2 3/8 6.65 NC26 6.26 9.32 E.X.G.S 0.28 7.11 EU
2 7/8 10.4 NC31 9.72 14.48 E.X.G.S 0.362 9.19 EU
3 1/2 13.3 NC38 12.31 18.34 E.X.G.S 0.368 9.35 EU
3 1/2 15.5 NC38,NC40 14.63 21.79 E.X.G.S 0.449 11.4 EU
4 14 NC40,NC46 12.93 19.26 E.X.G.S 0.33 8.38 IU,EU
4 1/2 16.6 NC46,NC50 14.98 22.31 E.X.G.S 0.337 8.56 EU,IEU
4 1/2 20 NC46,NC50 18.69 27.84 E.X.G.S 0.43 10.92 EU,IEU
5 19.5 NC50,NC52 17.93 26.71 E.X.G.S 0.362 9.19 IEU
5 25.6 NC50,5 1/2FH 24.03 35.79 E.X.G.S 0.5 12.7 IEU
5 1/2 21.9 5 1/2FH 19.81 29.51 E.X.G.S 0.361 9.17 IEU
5 1/2 24.7 5 1/2FH 22.54 33.57 E.X.G.S 0.415 10.54 IEU
6 5/8 25.2 6 5/8FH 22.19 33 E.X.G.S 0.33 8.387 IEU
6 5/8 27.7 6 5/8FH 24.21 41 E.X.G.S 0.362 9.19 IEU

Mechanical Properties:

Pipe body Grade Yield strength Tensile strength Elongation
min max min
Psi MPa Psi MPa Psi MPa
E75 75000 517 105000 724 100000 689 625000A0.2/U0.9
X95 95000 655 125000 862 105000 724
G105 105000 724 135000 931 115000 793
S135 135000 931 165000 1138 145000 1000
Weld zone Tool joint 120000 827.4 - - 140000 965.3 ≥13%
E75 75000 517 - - 100000 689
X95 88000 609 - - 103000 712
G105 95000 655 - - 105000 724
S135 105000 724 - - 115000 　

 

 
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