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API Spec7 Non Magnetic Flex Drill Collar for for Oil Well Drilling

US$1,800.00
100-199 pieces
US$1,750.00
200+ pieces

Basic Info.

Model NO.
API
Manufacturing Process
CNC Milling
Surface Treatment
Spray-Paint
Operation Pressure
Atmospheric Pressure
Material
Alloy
Size
2.3/8",2.7/8", 3.1/2", 4", 4.1/2", 5", 5 1/2 Inch
Diameter
60.32mm-139.7mm
Transport Package
Export Packing
Trademark
GPE
Origin
China
HS Code
8431
Production Capacity
150000

Packaging & Delivery

Package Size
500.00cm * 500.00cm * 300.00cm
Package Gross Weight
500.000kg

Product Description

Good Price API Oilfield Lifting Sub Lift Sub Drill Collar for Oil Well Drilling Sale
The drill collars are made of modified AISI 4145H chromium molybdenum alloy steel. These drill collar bars are full-length heat treated and water quenched to obtain ASTM A-370 mechanical properties. Full mechanical and chemical mill test certifications are supplied with all drill collars. These mill test certifications guarantee a hardness range of 285 to 341 BHN and an impact value of 40 ft.-lbs. at room temperature one inch below the surface.To ensure close tolerance bores, all drill collar bars are trepanned then drifted to API specifications. Bar surface finish is "as rolled" which is original mill finish.
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Connections ODmm IDmm Lengthmm
NC23-31 79.4 31.8 9150
NC26-35 88.9 38.1 9150
NC31-41 104.8 50.8 9150 or 9450
NC35-47 120.7 50.8 915 or 9450
NC38-50 127 57.2 9150 or 9450
NC44-60 152.4 57.2 9150 or 9450
NC44-60 152.4 71.4 9150 or 9450
NC44-62 158.8 57.2 9150 or 9450
NC46-62 158.8 71.4 9150 or 9450
NC46-65 165.1 57.2 9150 or 9450
NC46-65 165.1 71.4 9150 or 9450
NC46-67 171.4 57.2 9150 or 9450
NC50-67 171.4 71.4 9150 or 9450
NC50-70 177.8 57.2 9150 or 9450
NC50-70 177.8 71.4 9150 or 9450
NC50-72 184.2 71.4 9150 or 9450
NC56-77 196.8 71.4 9150 or 9450
NC56-80 203.2 71.4 9150 or 9450
6 5/8REG 209.6 71.4 9150 or 9450
NC61-90 228.6 71.4 9150 or 9450
7 5/8REG 241.3 76.2 9150 or 9450
NC70-97 247.6 76.2 9150 or 9450
NC70-100 254 76.2 9150 or 9450
8 5/8REG 279.4 76.2 9150 or 9450

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