Longway has authorized by ISO 9001, NS-1 and Russia GOST RTN . it is able to process drilling tools according to standard DS-1 under a full system of production design and quality control.. our oil drill rod have been tested by the third party, such as China national petroleum pipe research insititue and Russia petroleum pipe quality control center, the quality is stable and reliable.
API 5" OD NC-50 /Heavy weight drill pipe and drill collar good quality Product Description 1. Strictly according to API 5DP standard 2. Yield strength: Min 517 Mpa 3. Tensile strength: Min 724 Mpa 4. Pipe body material: High quality alloy seamless pipe of E75 5. Thread treatment: Phosphorization or copper plating 6. The material is seamless steel pipe from China most famous enterprise Baosteel and Tianjin seamless steel. Drill pipe quality control: 1.Before order to be confirmed, the raw material of pipe and tool joint body should be booked from famous big steel enterprises in China. 2.Checked by our QC staff and factory own laboratory. 3.Every drill pipe has nondestructive inspection , cleaned and breach oil before packing. 4.Before delivery clients could send one QC or point the third party to check the quality such SGS, BV or others. Drill pipe usage notes: 1.New drill pipe should be pasted thread oil before connection 2.Make up and break at least 3 times before drilling 3.Hard bending and plastic coating can be processed according to costumer special requirement. Name:water well drill pipe OD:2.375-140mm Thickness:0.27-11.4mm Steel Grade:E75 , X95, G105, S135 Type od end finish:EU-external upset, IEU-internal & external upset Standard:API 5DP payment:L/C,TT Package:bare bundle or as request Delivery:10-20days after receiving the deposit Port:xingang, tianjin Market:Mid east, North/South America,Europe,Asia,Africa etc.