Product Details

4'' Petroleum Oil Drill Pipe

Product Description

The raw materials selected by our company are all the alloy structure steels for geographical usage producted by Bao steel plant.. After testing, both ends of the tube are thickened directly without welding. Then come to the heat treatment process of the whole pipe and the chipping edges process. After that, the pipe will be pinted with nickel phosphor that can increase the hardness of air tightness of the thread surface. Before the finished pipes are plated and packaged, a series of test have to be completed,including hardness, metallurgical structure, physical performances,etc.

The welding between drill pipe and tool joint is machining with Friction welding machine. The welding process by means of computer control is swift and steady going. Weld zone is quenched and tempered through induction heating process, which is controlled real time by computer.

Packaging Detail:	according to the seaworthy packing
Delivery Detail:	30 days

Section Shape: Round
Outer Diameter: 65 - 168 mm
Place of Origin: Henan, China (Mainland)
Secondary Or Not: Non-secondary
Application: Fluid Pipe
Certification: API
Surface Treatment: Other
2 7/8", 3 1/2", 4", 4 1/2", 5" 5-1/2"

More Oil Machinery Our Factory Produce and Supply.

Company Information

Puyang Zhongshi Group Company Ltd was founded in 1996,which is the restructured enterprise of Central Plains oilfield branch company of SINOPEC . The company registered capital is 6083 million yuan,with annual output value 200 million yuan, 580 employees, including more than 160 technical and administrative staff. Oil machinery is our main products, the leading products include pumping unit,subsurface sucker rod pump, wellhead (Christmas Tree), pressure vessels,drilling solid control series products and cementing accessories, We had attained ISO 9001 in 1998 and API Certificates in 2002 .

Our Services

All products purchased in our company are guaranteed to keep in good repair for one year. If quality problems happen in guarantee period, our company will maintain for free. Additionally, our company provides technical support and fittings for life. After-sales service isn't restricted by time and we will assign technical personnel to solve your problems immediately after receiving telephone and hear feedback idea of users and deal with them in time. If you are caught in some problems when using our products, welcome to contact us at any time.