Forged HDD Rods

From the outside, one forged pipe looks much like another.

The differences are all on the inside, where failure to control the key processes of forging and heat treatment can have disastrous consequences. North Star’s rigorous quality management ensures consistent high performance from this premium product.

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Forged Drill Pipe Specification Charts

Compatible with Vermeer HDD Rigs Compatible with Ditch Witch HDD Rigs General Pipe Specifications

Compatible with Vermeer HDD Rigs

Rig Compatibility*ThreadLengthPipe ODJoint ODPin Length (mm)Max. Torque (Nm)Bend RadiusMax. Bend AngleMax. Slope (%)Weight (kg)Part Number
mmftmminchmminchmft
D7x11, D10x15#20018296421.66481.8850.7204030.299.13.55.910NS10301
D20x22, D23x30#400304810522.06572.2563.5352534.3112.55.18.727NS10302
D24x40#600304810602.38672.6363.5569539.61304.47.532NS10003
D33x44, D36x50#650304810602.38702.7563.5680039.61304.47.534NS10022
D33x44, D36x50#650457215602.38702.7563.5680039.61306.611.348NS10051
D36x50, D40x55#700304810672.63793.176.2745748157.53.66.1949NS10052
D36x50, D40x55#700457215672.63793.176.2745748157.55.59.2871NS10053
D50x100, D60x90#900457215732.88833.2588.91220252170.658.565NS10004

Compatible with Ditch Witch HDD Rigs

Rig Compatibility*ThreadLengthPipe ODJoint ODPin Length (mm)Max. Torque (Nm)Bend RadiusMax. Bend AngleMax. Slope (%)Weight (kg)Part Number
mmftmminchmminchmft
JT201.9430009.84542.13672.63752980361184.88.128NS10068
JT25/302.1130009.84602.38702.7684.7542039.61304.37.434NS10069

General Pipe Specifications

Pipe ODThreadLengthJoint ODMax. Torque (Nm)Recommended 
Make-up Torque (Nm)Bend RadiusMax. Bend AngleMax. Slope (%)Weight 
 (kg)
mminmmftmminmft
602.375ZX6030009.84682.6778294497639.61304.37.432
732.875NC2330009.8480.53.16913978838752170.63.35.646
732.875NC2630009.84883.46516055963352170.63.35.656
833.25ZX8030009.84923.622203721222359193.62.94.961
833.25ZX8045009.84923.622203721222359193.64.37.379

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