rotary drilling tools drilling pipe from China manufacturer

Price:	800.0~1300.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Henan, China (Mainland)


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Product Detail

Means of Transport: Ocean

Packing: According to the customer r...

Thickness: 6.5 - 9.99 mm

Certification: API

Application:: Fluid Pipe

Secondary Or Not: Non-secondary

Port:: qingdao

Production Capacity: 1000 Piece/Pieces per Year

Delivery Date: 25~30days

Place of Origin:: Henan, China (Mainland)

Standard:: API 5DP,API

Outer Diameter:: 50.8 - 88.9 mm

Section Shape: Round

Surface Treatment:: Other

Standard:API 5DP
Length:10-15m
Size:2-31/2
Pipe wall thickness:6.5-9.99mm
OD:50.8-88.9mm Grade:S135 R80 R780

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.