or Call: 281-498-0171

Drill Collar

Drill Collar Features

  • High quality,unique selection
  • Special intermediate frequency heat treatment technique
  • Satisfies API SPEC7-1 requests
  • UT&MT inspecion
  • Strict quality control system
  • Can priduce normal drillcollar,spiral drillcollar and non-magnetic drillcollar
Nominal Size D d Lmm DF (mm) Bending Strength Ratio
mm In mm In
NC31-41(2-7/8IF) 104.8 4/1/2008 50.8 2 9150 100.4 2.43:1
NC35-47 120.7 4/3/2004 50.8 2 9150 114.7 2.58:1
NC38-50(3-1/2IF) 127 5 57.2 2/1/2004 9150 121 2.38:1
NC44-60 152.4 6 57.2 2/1/2004 9150/9450 144.5 2.49:1
NC44-60 152.4 6 71.4 2/13/2016 9150/9450 144.5 2.84:1
NC44-62 158.8 6/1/2004 57.2 2/1/2004 9150/9450 149.2 2.91:1
NC46-62(4IF) 158.8 6/1/2004 71.4 2/13/2016 9150/9450 150 2.63:1
NC46-65(4IF) 165.1 6/1/2002 57.2 2/1/2004 9150/9450 154.8 2.76:1
NC46-65(4IF) 165.1 6/1/2002 71.4 2/13/2016 9150/9450 154.8 3.05:1
NC46-67(4IF) 171.4 6/3/2004 57.2 2/1/2004 9150/9450 159.5 3.18:1
NC50-67(4-1/2IF) 171.4 6/3/2004 71.4 2/13/2016 9150/9450 159.5 2.37:1
NC50-70(4-1/2IF) 177.8 7 57.2 2/1/2004 9150/9450 164.7 2.54:1
NC50-70(4-1/2IF) 177.8 7 71.4 2/13/2016 9150/9450 164.7 2.73:1
NC50-72(4-1/2IF) 184.2 7/1/2004 71.4 2/13/2016 9150/9450 169.5 3.12:1
NC56-77 196.8 7/3/2004 71.4 2/13/2016 9150/9450 185.3 2.70:1
NC56-80 203.2 8 71.4 2/13/2016 9150/9450 190.1 3.02:1
6-5/8REG 209.6 8/1/2004 71.4 2/13/2016 9150/9450 195.7 2.93:1
NC61-90 228.6 9 71.4 2/13/2016 9150/9450 212.7 3.17:1
7-5/8REG 241.3 9/1/2002 76.2 3 9150/9450 223.8 2.81:1
NC70-97 247.6 9/3/2004 76.2 3 9150/9450 232.6 2.57:1
NC70-100 254 10 76.2 3 9150/9450 237.3 2.81:1

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