Drill Steel Pipe
Grades: E75, X95, G105, S135
Drill Pipe
2-3/8" to 7-5/8" OD, Range 2 and 3
Heavy Weight
2-3/8" to 6-5/8" OD, Range 2 and 3
Drill Collars
2-7/8" to 14"
Connection threads: NC26, NC31, NC38, NC40, NC46, NC50, 5 1/2FH.6 5/8FH.
Internal Upset: IU, EU, IEU
Heavy weight drill steel pipe is a medium-weight drilling pipe, (referred standards in API SPEC 7-1). It has bigger wall thickness than common drilling pipe and smaller than drill collar.