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Drill pipe

 
            
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
 
Note:
1.EU-External Upset EU-Internal Upset IEU-Internal&External Upset
2.Threads of tool joint are right-hand or left-hand
3.Threads are copper-plated or phosphated
◆Mechanical performance
Drill-pipe-body  
Grade
Yield strength Tensile strength Elongation hardness Charpy V absorbed-energy
min max min Minimum average absorbed energy Minimum specimen absorbed energy
Psi Mpa Psi Mpa Psi Mpa HBW HRC Specimen sizemm×mm Specimen sizemm×mm
10×10 10×7.5 10×5 10×10 10×7.5 10×5
E75 75000 517 105000 724 100000 689 As shown in elongation values ­- - 54 43 30 47 38 26
X95 95000 655 125000 862 105000 724 - - 54 43 30 47 38 26
G105 105000 724 135000 931 115000 793 - - 54 43 30 47 38 26
S135 135000 931 165000 1138 145000 1000 - - 54 43 30 47 38 26
Tool joint   827 1138 965 13 285-341   54 43 30 47 38 26
    Weld-zone The yield load of the weld zone in tension shall be greater than the yield load of the drill-pipe body as given by EquationYw×Aw ≥ Ymin×Adp
      where
        Adp is the cross-sectional area of the drill-pipe body based on the specified dimensions of the pipe body;
       Aw is the minimum cross-sectional area of the weld zone;
       Ymin is the specified minimum yield strength of the drill-pipe body;
        Yw is the weld zone minimum yield strength
/ - ≤37  
16
14  
 
14 11  
 
                                                          

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Drill pipe
Published in:2012-10-19 14:57
        (1).Standard:API 5DP
        (2).Grade:E75,X97,G105,S135
        (3).Size:2 7/8”-5 1/2”
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