Specification

1)      Certificate: API 5DP-0002,API Q1-0964, ISO 9001,ISO 14001,OHSAS 18001

2)      OD:2 3/8” TO 5 1/2” of label 1 or 60.32mm to 139.7mm

3)      Wall thickness:6.45 to 12.7mm

4)      Grade:E75,X95,G105,S135

5)      Length:R1:6.1-7.01mm, R2:8.84-9.75mm, R3:12.19-13.72mm

1) OD: 2 7/8", 3 1/2", 4", 4 1/2", 5" 5-1/2"
2) Steel Grade: E75, X95, G105, S135

3) Type of end finish: EU-external upset, IEU-internal & external upset

4) All drill pipe are made according to API 5D

5) We can provide in many conditions, with or without hard banding (Arnco100, Arnco300, tungsten carbide etc).

01 Design & working procedure Conform to the requirment of API Spec

02 Non-API standard type of drill collars are also avalible as per client'request

03 Cold-rolled thread roots

04low alloy steel as material applied

05 Integral forging, no welds

06 hard banding can be added as per client ’request 

07 Option Integral heavy weight drill pipe with two central upsets and with spiral grooves are also available

Two kinds of drill pipe

A. Integral Heavy Weight Drill Pipe

Note: The wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its structure is similar with drill pipe. It is made from premium alloyed steel. Its both tool joints and middle upset are welded hardbands. Technical parameters meet with API Spec7-1 Standard.

 

B. Integral Spiral Heavy Weight Drill Pipe

Note: Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove on heavy weight drill pipe.

Introduction

Our API 5DP drill pipes are of high physical property, for their strictly controlled processing of sulphur and phosphorus.To ensure the materials to meet even surpass the requirements of API Specification, heat treatment is on the basis of the actual chemical analysis of each heat of steel.Strict full-length inspection especially on the weld-neck region ensures the drill pipes are of no defects.

   All threads are machined by CNC Lathes and inspected with API Spec standard thread gauges. To improve the galling-resistance during initial break-in and drilling operation, all threads are also phosphated or coppered, and all the roots are cold rolled. The products shall be equipped with pressed steel or plastic steel thread protectors on the connections.

Our company will always keep the various demands of broad customers in mind and provide the best service end-users

Please specify the following on enquiry:

Outside Diameter

Inside Diameter

Steel Grade

Length

Internal Coating Material