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
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.