Quality Drill Pipe requires cutting edge equipment.
Our Drill Pipe product line is completely automated with equipment from Germany & the U.S., such as the Friction Weld machine, Hardbending Weld machine, IPSEN furnace and Siemans CNC Lathe.
The Tool Joints are made of AISI 4137H premium alloy steel fully Q&T with the IPSEN Furnace.
All the joints are inspected by Florescence Magnetic Particle and the Ultrasonic method. The pipe body goes under very serious inspection in conformance with API. 5D.
The welding between the drill pipe an tool joint is accomplished with the Friction Welding machine, the welding process is swift & steady under computer control. The weld zone is quenched and tempered through the Induction process which is computer controlled in real time.

 

 

Steel Grade	Yield Strength				Tensile Strength
	Min.		Max		Min.
	Psi	Mpa	Psi	Mpa	Psi	Mpa
E-75	75000	517	105000	724	100000	689
X-95	95000	655	125000	862	105000	724
G-105	105000	724	135000	931	115000	793
S-135	135000	931	165000	1138	145000	1000

 

Drill Pipe Weld Zone Parameters

 

Steel Grade	Min. Yield Strength	Min. Tensile Strength	Min. Elongation	Min. AKV Impact
	Mpa	Mpa	%	J
E-75	517	689	13	20(Average) 15(Min)
X-95	609	712
G-105	655	724
S-135	724	793