3 1/2 Inch Dz50 R780 Steel API Standard Down-The-Hole Water Well Drill Rod

• Standard: RoHS, BS, DIN, JIS, AISI, API
• Length: 1m-9m
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: Carbon Steel
• Thread Type: 2 3/8" API Reg, 3 1/2" API Reg (API Thread, Custom
• Upset Type: Iu, EU, Ieu
• Model NO.: DTH water well drill pipe
• Product Technology: Friction Welding, Nitrading, Upsetting
• Product Name: 3 1/2 Inch Dz50 R780 Steel API Standard Drill Pipe
• Transport Package: Bundle
• Specification: from 2 3/8" to 6 5/8"(50-168mm)
• Trademark: WEILIDA
• Origin: China
• Production Capacity: 100000 Pieces

Product Description

 

Product Description

3 1/2 inch DZ50 R780 steel API standard down-the-hole water well drill rod   

DTH drill pipe is mainly used in the drilling blasting hole, guardrail hole, mountain reinfrcement, anchoring and other engineering holes in mines, tunnels, high ways,  railways and so on.

Outer diameter	Thread	Wall thickness	Length	Wrench flat	Weight
mm		mm	mm	mm	Approx Kg
76	2-3/8 API REG	5.5	1000	57	17
			1500		22
			2000		26
			3000		35
			1000	65	17
			1500		22
			2000		26
			3000		35
		6.5	3000		46
			4500		56
			6000		73
89	2-3/8 API REG	5.5	1000	65	20
			1500		25
			2000		30
			3000		40
		6.5	1000		21
			1500		26
			2000		32
			3000		45
			4500		65
			6000		84
102	2-3/8 API REG	6.5	1000	75	25
			1500		33
			2000		40
			3000		55
			4500		78
			6000		100
	2-7/8 API REG		1000	83	25
			1500		33
			2000		40
			3000		55
			4500		78
			6000		100
114	3-1/2 API REG	6.5	1000	95	31
			1500		40
			2000		49
			3000		66
			4500		86
			6000		110

 

 

Remarks: We accept customization.

Detailed Photos

 

Certifications

Packaging & Shipping

Packing Details  : The drill pipes will be packed into bundles  or as customer's requirements.

Delivery Details : Usual loading port is Tianjin port in Tianjin ,main port in north of China.

Company Profile

 Shijiazhuang WeiLiDa Prospecting Machinery Co., Ltd. is a professional manufacturer of drill pipe, drilling rig and other drilling tools. Our factory is located in Jinzhou, Shijiazhuang . 200 km from the capital Beijing. We have good export conditions to Tianjin port and Huanghua port. Our factory covers an area of 20000 square meters. Its total assets is 50 million yuan.

- Stable raw material purchasing

- Favorable orders follow-up management

- Laudable lead-time & shipment control

- Traceable quality evaluation

- Flexible payment terms

- Remarkable after-sale service

 

Our Advantages

1.Production quality and standards meet and exceed the Comprehensive requirements of API5D,API7G,APIQ1. achieve the international first-class.
2.World-class raw materials and advanced heat treatment process,fully reflects the high strength and toughness,especially with high temperature toughness. 
3.Sleek long tube thickening transition zone and a solid abrasion-proof increase the service life of drill pipe and the degree of safety.
4.Pipe body material:High quality alloy seamless pipe of R780,E75,X95,G105,S135

5.Top-notch technical team
6.Perfect quality management
7.Advanced and first-class equipment
8.Professional experience of 20 years
9.Comprehensive international standard

 

After Sales Service

1.Any third party testing is accepable.
2.Engineers are online 24 hours a day.

FAQ

Q: Are you trading company or manufacturer ?

A: We are a professional manufacturer.

Q: How long is your delivery time?

A: Generally it is 10~20 days if the goods are in stock. or it is 20~30 days if the goods are not in stock, it is according to quantity.

Q: Where is your factory located in?

A: Our factory is located in Lu Jiazhuang Industry Zone, JIN ZHOU city, HEBEI province, China.

Q: What methods of payment are accepted?

A: We agree T/T, L/C,One touch.

Q: What about the shipment?

A: Our usual loading port is Xingang port in Tianjin ,main port in north of China. The goods will be packed into bundle as 3*3,4*4 etc,black painting and thread protectors.

Q: do you agree sample order?

A: Yes, we are welcome your sample order to testing our quality.

Q: Does your drill pipe have rust prevention?

A: Yes, every drill pipe will be with the rust prevention by paint or anti-corrosive oil before shipping and its thread surface will be nitrided.

Q: do you have after-sale service and warranty service?

A: Any quality or quantity problem once confirmed, we will be compensate you the same. Any question or problem we will be reply you within 24 hours.

Q: How about your minimum order quantity?

A: At least 10 pieces.Small orders also can accept.
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