E75 Drill Pipe

　　Outer Diameter : 2 3/8" - 6 5/8"

　　Wall Thickness : 7.11 - 12.70mm

　　Place of origin : China

　　E75 Drill Pipe

　　Standard: API SPEC 5DP

　　Material: E75, X95, G105, S135

　　Size: OD: 2 3/8" - 6 5/8"

　　WT: 7.11 - 12.70mm

　　The drill collars are made of modified AISI 4145H chromium molybdenum alloy steel. These drill collar bars are full-length heat treated and water quenched to obtain ASTM A-370 mechanical properties. Full mechanical and chemical mill test certifications are supplied with all drill collars. These mill test certifications guarantee a hardness range of 285 to 341 BHN and an impact value of 40 ft.-lbs. at room temperature one inch below the surface.

　　Usage : One of the most important components of the drill string is to provide drilling bit ofpressure and the drill string rigid role.

　　Material : AISI 4145 H .

　　Types:drill pipes anddrill collars

　　Brand:Shengtian