Heavy Weight Drill Pipe features two long tool joints and a central heavy wall tube, with tool joints made from AISI 4145 H modified material, heat-treated to 285-341 Brinell hardness and a minimum of 40 ft-lbs Charpy V-notch Impact strength. Other properties comply with API 7-1, while the central tube is AISI 1340 steel or equivalent. We also offer Integral Heavy Weight Drill Pipe.
Features:
⦁ Manufactured per API 7-1 and API RP 7G standards.
⦁ • Standard bore backs on box ends, API stress relief grooves on pin ends.
⦁ • Cold-worked thread roots for added durability.
⦁ • Connections are phosphatized, lubricated, with pressed or cast steel thread protectors.
⦁ • Hard banding on tool joints and central upset, including 4-inch pads on pin/box ends and 3-inch pads on the central upset.