Place of Origin:	China (Mainland)	Brand Name:	Chang Gong	Model Number:	from 3 1/2" to 5 1/2"
Type:	Drill Pipe	Machine Type:	Drilling Tool	Certification:	API
Material:	Carbon Steel	Processing Type:	Forging	Use:	oil well & gas well ,water well
Thickness:6.88-10.36mm

drill pipe
1.OD:3 1/2,4",4 1/2",5",5 1/2"....
2.Steel grade: E75,X95,G105,S135
3.Standard :API 5DP
4.MOQ :25 Tons

water well drill pipe 

 

1.OD:3 1/2,4",4 1/2",5",5 1/2"
2.Steel grade: E75,X95,G105,S135
3.Standard :API
4.MOQ :25 Tons

Main feature:

A. The drill rods comply with the provisions of  API SPEC 5D & API SPEC7.

B. The grade of steel are determined according to the requirements of Group 1 & Group 3 of API SPEC 5D.

C. Drill pipe joints at the same level comply with the provisions under the Standard API SPEC 7.

 

Drill Pipe Feature:

A. High precision in size and shape

B. Good low temperature toughness

C. Excellent comprehensive mechanical properties

D. High connection strength and sealability

E. Large inside diameter of tool joint

F. High  torque resistance

G. High fatigue strength and long fatigue life

 

Internal Coating Feature:

A.High abrasion resistance and low friction factor

B. Good adhesion and flexility

C. High application temperature and pressure

D. High hardness and impact resistance

E. Good corrosion resistance

 

Hardbanding Feature:

A. Good balance between antiwear and friction-reduction

B. The wear rate is less than 6% of that of bare tool joint, which can prolong 3 times of the

    tool joint service life

C. Good property of friction-reduction, which can reduce the casing wear to the least, and its

    wear to casing is less than 11% of that of bare tool joint

D. Reduce the torque of drilling string

E. Good weldablity with little splash and good rewelding preformance

F. Friendly to environment

 

Detail Mechanical Property of the Drill Pipe:

Group	Grade	Yield Strength				Tensile Strength
		Minimum		Maximum		Minimum
		psi	Mpa	psi	Mpa	psi	Mpa
1	E-75	75000	517	105000	724	100000	689
3	X-95	95000	655	125000	862	105000	724
	G-105	105000	724	135000	931	115000	793
	S-135	135000	931	165000	1138	145000	1000

Products Pictures :