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Wuxi Yaheng Geological Equipment Technical Co., Ltd.
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Consistent Concentricity NWJ Tool Steel Drill Rod 3 Meters NQ Hardened Steel Rods

Wuxi Yaheng Geological Equipment Technical Co., Ltd.

Consistent Concentricity NWJ Tool Steel Drill Rod 3 Meters NQ Hardened Steel Rods

Brand Name : Yaheng

Model Number : Drill Rod

Place of Origin : China

MOQ : 10

Price : usd dollar 60~130 per piece

Payment Terms : L/C, T/T, Western Union

Supply Ability : 10000 piece per month

Delivery Time : 3 working days

Packaging Details : Tied up by steel belt with plastic sleeve for screw thread part

Steel Material : High quality alloy steel

Length : 3 Meters

Size : AQ BQ NQ HQ PQ

Thread Protection : Plated and plastic sleeve

Use : Ore drilling or Well drilling

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Tapered threads BQ NQ HQ PQ NWJ Drill Rod for Core Barrel , heat-treated

Consistent Concentricity NWJ Tool Steel Drill Rod 3 Meters NQ Hardened Steel Rods

Specifications

1. high quality alloy tube
2. thru-wall heat treated tube body
3. consistent concentricity, straightness
4. tapered threads

.

Size Available:

"Q" Series: BQ, NQ, HQ, and PQ.

"WJ" Design: AWJ, BWJ, NWJ, KWJ, HWJ

"W" Design: RW, EW, AW, BW, NW, HW

Metric Series: 33, 42, 50

We also can produce various sizes of casing tubes

Size Available:

"W" Design: RW,EW,AW,BW,NW,HW,PW,SW,UW,ZW/HWT,PWT

Metric Series: 46, 56,66,76,86,101,116,131,146

"X" Design: RX, EX, AX, BX, NX, HX, PX, SX, UX, ZX

All Chinese sizes.

Raw materials:

We choose the best steel tubes in the market to manufacture our drill rods and pipes. Spot check will be conducted after the steel tubes delivered to company. We will make sure the compositions and specifications match the inspection report form the suppliers.

Based on the depth of drill bore, Q series wireline core drill rods are classified into A and B grades. A grade drill rod is entire-length or ends thermal processed and B grade drill rod is entire-length processed.

Material:30CrMnSiA or 45MnMoB(A grade), XJY850 or BG850( B grade)

Heat treatment control:


Heat treatment will greatly improve the material strength and increase the thread wear life of the

rods and casings. We conduct either tru-wall or both ends heat treatment to the tube body. After

heat treatment, strength, hardness, straightness and concentricity of the treated tubes will be tested

in our lab.

Thread opening process:


Accuracy of threads will determine the use effects and life time of drill rod and casings.
CNC latches and form cutter are used in thread opening processing to minimize error made by

anthropic factors.

Additional thread treatment:


Surface of the threads will be cleaned to remove burr adhered after threads are opened.
Afterwards, the tread surface will be phosphated to improve surface conditions.

Item

OD(mm)

ID(mm)

Wall Thickness(mm)

Length(m)

NQ Rod

69.9

60.3

5

3

HQ Rod

88.9

77.8

5.5

3

PQ Rod

114.3

103.2

5.5

3

50 Rod

50

37

6.5

3


Product Tags:

tool steel drill rod

      

rock drill steel

      
 Consistent Concentricity NWJ Tool Steel Drill Rod 3 Meters NQ Hardened Steel Rods Manufactures

Consistent Concentricity NWJ Tool Steel Drill Rod 3 Meters NQ Hardened Steel Rods Images

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