Grades: E75, X95, G105, S135
2-3/8″ to 7-5/8″ OD, Range 2 and 3
2-3/8″ to 6-5/8″ OD, Range 2 and 3
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 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.
Mechanical Properties API Steel Drill Pipe
|Yield Strength (minimum psi)||75,000||95,000||105,000||135,000|
|Yield Strength (maximum psi)||105,000||125,000||135,000||165,000|
|Tensile Strength (minimum psi)||100,000||105,000||115,000||145,000|