AU series drilling rod is interchangeable with Q series coring drilling rod that is common in the international geological exploration industry. AU drill rod including HAU(HQ) drill rod, NAU(NQ) drill rod, BAU(Q) drill rod these series. Taper threaded connection is adopted to facilitate connection and prevent stuck, and thread surface is hardened to greatly prolong service life of the thread.

Pipe Body: Quality alloy steel pipe is adopted and 100% test is conducted for each raw material to ensure concentricity, straightness and heat treatment.

Thread: Taper threaded connection (3 threads per inch) is adopted to facilitate connection and prevent thread stuck. Each thread is under relatively even stress, providing sufficient strength for product application.

Heat Treatment: The whole undergoes heat treatment process to improve service life of rods. Threads at both ends of the rods undergo special process treatment to provide about 140% of material strength. Service life of inner thread improves obviously.

Thread Surface Hardening: After special process treatment, outer thread surface hardness is up to about 55HRC, which effectively avoids "sticking thread" and reduces abrasion and "stuck" due to engagement of thread.

AU Drill Rods Sizes Available

Note: Q and RQ is the trademark from Boart Longyear, here we quoted for helping customer to selectthe rods only.

Drill Rods: AU Thread Overview
* Material : 4130

* Tubing

• High quality alloy steel tubing

• Consistent concentricity, straightness and heat treatment

• All tubing available in DCDMA sizes

* Thread

• Tapered, course threads (3 threads per inch) provides easy make and break

• Load efficiency of 30% provides sufficient strength for average applications

* Thru-wall Heat Treatment

• Provides 140% material strength

• Heat treated box threads significantly increases thread wear life

* Case Hardening

• Significant research, development and field testing have resultedin a hardening process that is unequalled.

• Pin thread crest is hardened to nominal 55 HRC to eliminate damaging adhesion wear

• Eliminates the transfer of wear material back and forth which is what happens between threads of equal hardness, leading to large scalegalling and joint seizing.

Attention: Do not mix our drill rods with another manufacturer, it may causecatastrophic accident.

Note: For making sure the performance of the drill rods, never mix our rods with any another manufacturer's rods together, also it may cause machinery failures and catastrophic accident.

Packing Details
BAU (BQ) Drill Rods Bundle Specifications

* 20 ft container load of 3.0 m/10 ft drill rods holds 53 bundles (1007 rods)

* 40 ft container load of 3.0 m/10 ft drill rods holds 68 bundles (1292 rods)

NAU (NQ) Drill Rods Bundle Specifications

* 20 ft container load of 3.0 m/10 ft drill rods holds 30 bundles (570 rods)

* 40 ft container load of 3.0 m/10 ft drill rods holds 45 bundles (855 rods)

HAU (HQ) Drill Rods Bundle Specifications

* 20 ft container load of 3.0 m/10 ft drill rods holds 20 bundles (380 rods)

* 40 ft container load of 3.0 m/10 ft drill rods holds 30 bundles (570 rods)

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