BQ NQ HQ PQ NQWL BW size geological wireline drill rod drill pipe

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2021年04月02日

drill pipe OD 3 1/2", wall thickness 0.368 inch, thread 2 3/8" mayhew regular, length 20 feet

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High Tensile Aw 44.5mm / 1.75 Inch Conventional Drill Rods 3m 1.5m For Mineral Exploration





BQ NQ HQ PQ NQWL BW size geological wireline drill rod drill pipe




QB Series Rod Parameter-Geological Steel Pipe-Entire Length Thermal Treatment NC Lathe With Former Cutters
Spec.UnitBQNQHQPQ
OD/IDmm55.6/4671/6089/77.8114.3/101.6
Thicknessmm4.85.55.66.35
Lengthm1.5 or 31.5 or 31.5 or 31.5 or 3
Weightkg/m6.018.811.5117.3
Thread Lengthmm44.4544.4544.4563.5
Thread Pitchthread/inch3332.5
Box Thread Tooth Heightmm0.760.760.761.17
Pin Thread Tooth Heightmm0.880.880.881.27
Thread Tooth Angle.29292929
Tensile Resistance(A Series)kn400530510565
Tensile Resistance(B Series)kn450615625660
Bore Depthm12001000900800


RC series Rod parameter-geological steel pipe-entire length thermal treatment NC lathe with former cutters
Spec.UnitBQNQHQPQ
OD/IDmm55.6/4669.9/60.388.9/77.8114.3/101.6
Lengthm1.5 or 31.5 or 31.5 or 31.5 or 3
Weightkg/m6.018.811.5117.3
Thread Lengthmm424241.9163.5
Thread Pitchthread/inch3332.5
Box Thread Tooth Heightmm0.760.760.761.17
Pin Thread Tooth Heightmm0.880.880.881.27
Thread Tooth Negative Angle.5555
Tensile Resistance(A)kn450525545565
Tensile Resistance(B)kn530625.5602660
ProcessCutting-Upsizing-Machining-Heat Treatment-Machining-Phosphating-Antirust.
TypeConnect Directly, Coupling, Upsizing Without Coupling.
Material30CrMnSiA or 45MnMoB(A grade), XJY850 or BG850( B grade)


We specialized in manufacturing Drill Rods, Casings, Core barrels, Diamond bits, Reaming shells, Drill rigs, PDC bits and other drilling tools & equipment for geological exploration, mining, geotechnical, dam grouting, water well and horizontal directional drilling. 

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