This drill pipe is used for the horizontal directional drilling pipeline laying project.
The main materials or grades
API SPEC 5D: 2001《Specification for Drill Pipe》
API Bul 5C2: 1999《The performance of casing, tubing and drill pipe》
SY/T 6417-2009 《The performance of casing, tubing and drill pipe》
SY/Y 6896.2-2013 《The technical specification of special pipe for petroleum and natural industry part 2：orientation crossing with drill pipe》
Yield strength Rp0.2/MPa
OD tolerance：-0.5%D~+1.0%D，WT tolerance：≥-12.5%S，，Full length Straightness≤0.2%L。
This product is mainly used for transmitting drilling power and transporting mud which should have good strength, ductility, tenacity, high wear-resisting, anti-fatigue reverse and corrosion resistance.