Extention T38 Thread DTH Drill Pipe Rods Male Male Connection

Product name: Extention T38 Thread Drill Rod Male-Male connection

Product category: Drilling rod

Threaded Connection: R22, R25, R32, R38, T38, T45, T51

Length: 1220mm

KINGDRILLING thread drill rods are made of high-intensity alloy steel. All the trails and threads are formed by high precision CNC machines. The thread is induced by induction hardening, then fast heating and cooling. The precision temperature controlled heat treatment equipment ensures the service life of the drill rod, improves the mechanical properties of the drill rod,

Holistic carburization increases the carbon content in the outer layer of drill rod, and hardened outer steel body. The solid thread can fit perfectly with the inner wall of the drill bits,and complete various roadway tunneling, underground mining and open pit drilling task in complex rock and terrain rough drilling with high precision and high efficiency .

KINGDRILLING thread drill rod parameters:

THREAD	description		Length		Diameter		Weight approx kg
			mm	Foot	mm	inch
T38	Extension rod T38-Round39-138		1220	4'	39	1 1/2	10.2
	Flushing hole 14.5mm.		1525	5'	39	1 1/2	12.8
	Wrench flat 32mm.		1830	6'	39	1 1/2	15.3
			2435	8'	39	1 1/2	20.4
			3050	10'	39	1 1/2	25.5
			3660	12'	39	1 1/2	30.9
			3965	13'	39	1 1/2	33.2
			4270	14'	39	1 1/2	35.7
			4880	16'	39	1 1/2	41
			5530	18'11/2"	39	1 1/2	46.3
			6095	20'	39	1 1/2	50.9
T38	MF-rod T38-Rourd39-138		915	3'	39	1 1/2	10.7
	Flushing hole 14.5mm		1220	4'	39	1 1/2	13.3
			1525	5'	39	1 1/2	15.8
			1830	6'	39	1 1/2	18.3
			3050	10'	39	1 1/2	28.5
			3660	12'	39	1 1/2	33.6
			4270	14'	39	1 1/2	38.7
			4880	16'	39	1 1/2	43.7
			5530	18'11/2"	39	1 1/2	49.2
			6095	20'	39	1 1/2	53.9
T38	Hex. extension rod T38-Hex32-T38		1220	4'	32	1 1/4	8.6
	Flushing hole 9.6mm		1830	6'	32	1 1/4	12.6
			2435	8'	32	1 1/4	16.6
			3050	10'	32	1 1/4	20.8
			3660	12'	32		24.9
T38	Double thread rod T38-Round39-T39		3050	10'	46	1.75	25.7
	Flushing hole 14.5mm.
	Wrench flat 32m.
			3660	12'	46	1.75	30.9
T38	Guide speedrod T38-Round46-T38		1830	6'	46	1 3/4	23.5
	Flushing hole 17mm.		3050	10'	46	1 3/4	37.2
			3660	12'	46	1 3/4	44
			4270	14'	46	1 3/4	50.9
			4880	16'	46	1 3/4	57.7
			5530	18'11/2"	46	1 3/4	65
			6095	20'	46	1 3/4	71.3

Order Guide: Thread type + Diameter + length

KINGDRILLING thread drill rod advantages:

1.High quality: High carbon steel with advantaged procession
2.Competitive price:Cheap price because of direct factory price.

3.Problems solve ability:This ability comes from our rich experiences at the drilling tools industry.

4.Fast delivery time:usually it takes 25 days for production.Only 2 or 3 days if we have stock of your request size.
5.Best quality control:We have our own experienced QC team,there will be strict inspection and testing for every order before shipping out.
6.OEM,ODM service:your own request about product will be served well.
7.Best after service:We will go to your place to check and solve the problems if there.

KINGDRILLING drill rod features:
1. Hardening treatment of the part’s surface:with longer operating life and excellent anti-wear properties.

2. Structural optimization:Strengthen the structural strength, easy to operate
3. Superior performance:Stable and reliable performance, high drilling speed

FAQ:

1. What is a drill rod?

A drill rod is a form of bar stock machined to produce tools such as drill bits, taps, dowel pins, shafts, reamers, files, punches and hammers. It's soft enough to shape but can be heated up to revert back to the hardness. Drill rods are manufactured from tool steel that has been ground to a tight tolerance diameter.

2. What type of steel is drill rod made of?

annealed tool steel

Drill rod is made of annealed tool steel with a Rockwell hardness ranging from 96 to 110 rb. It is typically soft enough that it can be easily machined, although it is hard enough to use in some applications without heat treatment.

3. How are drill rods made?

Drill rods are manufactured by cutting a pin and a box thread directly onto the steel tube – the drill rod is therefore a one-piece construction. All standard wireline drill rod is manufactured in this way.

4. How do you harden a hardening drill rod?

HEAT TREATMENT Sections smaller than ¼” heat to 1450°-1475°F and hold until heated through. For larger sections, preheat to 1200°F, the raise to 1450°-1500°F to hardening temperature, hold one-half hour per inch of cross section. Quench in oil at 125°-150°F and TEMPER IMMEDIATELY.

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