Basic Info.Model NO.:Drill PipeMaterial:Stainless Steel PipeStandard:ASTM,Website:http://www.rejeedrilling.com, GB, APIDiameter:273-377mmMedium:Fluids With Solid ParticleCross-Section Shape:RoundConnection Type:Seamlessout Diameter:60-127mmThickness Type:Internal and External UpsetDrill Pipe Joint Code:Nc26-Nc50Joint Outside Diameter:86-170mmTong Space of Pin Tap:178-236mmTong Space of Box Tap:203-320mmExport Markets:Global Additional Info.Trademark: RejeePacking:Iron Shelves or Others Suited SeashipmentStandard:CE SGSOrigin:Shaanxi, ChinaHS Code:7304239000Production Capacity:10000 Piece/Pieces Per Year Product DescriptionIntegral Heavy Weight Drill Pipe/oil pipeProduct Specification:The Integral heavy weight drill pipe is made from AISI4145H alloy steel, and completely meets the requirement of API Spec 7-1 and SY/T5146 Standard.It is mainly used between dill collar and dill pipe to ease transition stress concentration and reduce the rate between contact area and outer wall wear, which can effectively prevent the pressure sticking.