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Wireline Drill Rods

Our wireline drill rods are manufactured from the highest quality raw materials, i.e. cold drawn carbon seamless steel tubes of grade SAE 1541 / SAE 4130 / SAE 5130. These tubes have extremely high mechanical properties, and straightness better than 1:2500 (geotechnical grade) or 1:5000  (mining grade).

All rods are supplied with heat treated rod ends, hardened to 30 - 35 Rockwell throughout the wall thickness to a length of 200mm.

As an option for very demanding applications, the threads may also be induction case hardened to 50 – 55 Rockwell to a depth of 1mm (box thread) or 0.5mm (pin thread).

Standard rod lengths are 1.5m or 3.0m, but other lengths can be supplied on request. 

 

Specification

Drill Rod Type

A W/L

B W/L

N W/L

H W/L

PHD

Outside Diameter (mm)

44.5

55.6

69.9

88.9

114.3

Inside Diameter (mm)

34.9

46

60.3

77.8

101.6

Thread T.P.I.

4

3

3

3

2.5

Weight (kg/m)

4.7

6.2

7.8

11.7

17.7

 

Mechanical Characteristics

Minimum Tensile Strength 820 N/mm2
Minimum Yield Strength 680 N/mm2
Minimum Elongation 15%
Hardness 250-280 BNH
Dimensional Tolerances on Diameter ± 0.25mm
Straightness 1:2500 or 1:5000 (on request)