Drill Pipe

Length Outer diameter Inner diameter Quantity H wireline drill pipe 3000 mm Min 88.90mm Min 77.80 mm 4.000 pieces (+,- 3 mm) Max 89.15 mm Max 78.00 mm N wireline drill pipe 3000 mm Min 69.85 mm Min 60.12 mm 8.000 pieces (+,- 3 mm) Max 70.05 mm Max 60.33 mm Tech. Specs ; Min Tensile strength : 900 N/mm2 Min Flow tension : 800 N/mm2 Min Elongation after Ultimate strength : % 14 Min surface hardnes : 262 Brinell Max Secretien (In total length) : 1/2000 Eccentricity (Radial run-out) : %10 of pipe thickness Drill pipes will be manufactured from seamless steel by cold drawn