API Standard Non Magnetic Drill Collars NMDC
- Category: >>>
- Supplier: Dongying On-Tech Equipment Co. Ltd.
Share on (1601205476799):
Product Overview
Description
Product Description
Drill Collars are integral heavy-wall joints that are manufactured from a solid bar of modified alloy steel. The solid bars are quenched and tempered to obtain the required mechanical properties, then trepanned, drifted and threaded. All drill collars are heat-treated with hardness within 285 to 341 BHN, which are guaranteed one inch below the surface of the pipe.
Features
1. Hardness range of 285 to 341 BHN and a charpy impact value of 40ft/lbs are guaranteed for evenly distributed 16 points in any cross sections at room temperature.
2. Connections as phosphate coated father machining to protect the threads from corrosive elements and to prevent galling upon initial make -up. Thread roots are cold rolled on API and H0-90 connections.
3. Pressed steel thread protectors are supplied to all drill collar that are equipped with standard connections.
4. Manufactured strictly according to API standard.
5. Widely used in oil, gas, HDD and geothermal field.
Detailed Photos
Parameter
| Size (in) | O.D (mm) | I.D. (in) | Code | Thread | Length (mm) | Weight (kg) |
| 3 1/8 | 79.4 | 1-1/4 | NC23-31 | NC23 | 9140 | 298 |
| 3 1/2 | 88.9 | 1-1/2 | NC26-35 | NC26 | 9140 | 364 |
| 4 1/8 | 104.8 | 2 | NC31-41 | NC31 | 9140/9450 | 474/490 |
| 4 3/4 | 120.6 | 2 | NC35-47 | NC35 | 9140/9450 | 674/697 |
| 5 | 127 | 2-1/4 | NC38-50 | NC38 | 9140/9450 | 725/749 |
| 6 | 152.4 | 2-1/4 | NC44-60 | NC44 | 9140/9450 | 1125/1163 |
| 6 | 152.4 | 2-13/16 | NC44-60 | NC44 | 9140/9450 | 1022/1056 |
| 6 1/4 | 158.8 | 2-1/4 | NC44-62 | NC44 | 9140/9450 | 1237/1279 |
| 6 1/4 | 158.8 | 2-13/16 | NC46-62 | NC44 | 9140/9450 | 1134/1172 |
| 6 1/2 | 165.1 | 2-1/4 | NC46-65 | NC46 | 9140/9450 | 1352/1398 |
| 6 1/2 | 165.1 | 2-13/16 | NC46-65 | NC50 | 9140/9450 | 1249/1291 |
| 6 3/4 | 171.4 | 2-1/4 | NC46-67 | NC46 | 9140/9450 | 1471/1521 |
| 7 | 177.8 | 2-1/4 | NC50-70 | NC50 | 9140/9450 | 1597/1651 |
| 7 | 177.8 | 2-13/16 | NC50-70 | NC50 | 9140/9450 | 1494/1545 |
| 7 1/4 | 184.2 | 2-13/16 | NC50-72 | NC50 | 9140/9450 | 1625/1680 |
| 7 3/4 | 196.8 | 2-13/16 | NC56-77 | NC56 | 9140/9450 | 1895/1960 |
| 8 | 203.2 | 2-13/16 | NC56-80 | NC56 or 6- 5/8REG | 9140/9450 | 2040/2109 |
| 8 1/4 | 209.6 | 2-13/16 | 6-5/8REG | 6-5/8REG | 9140/9450 | 2188/2263 |
| 9 | 228.6 | 2-13/16 | NC61-90 | NC61 | 9140/9450 | 2658/2748 |
| 9 1/2 | 241.3 | 2-13/16 | 7-5/8REG | 7-5/8REG | 9140/9450 | 2954/3054 |
| 9 3/4 | 247.6 | 3 | NC70-97 | NC70 | 9140/9450 | 3127/3234 |
| 10 | 254 | 3 | NC70-100 | NC70 | 9140/9450 | 3308/3421 |
| 11 | 279.4 | 3 | 8-5/8REG | 8-5/8REG | 9140/9450 | 4072/4210 |
| Mechanical properties: <7 inch Drill Collar: Yield Strength≥758MPa, Tensile Strength≥965MPa, Four times elongation ≥13%, Impact energy Ak≥54J (Single impact work≥47J, Average≥54J), Hardness range: 285HB~341HB ≥7inch Drill Collar: Yield Strength≥689MPa, Tensile Strength≥931MPa, Four times elongation≥13%, Impact energy Ak≥54J (Single impact work≥47J, Average≥54J), Hardness range 285HB~341HB | ||||||
| Drill collar can be customized as per customer's design. | ||||||
Our Services
Company Information
Dongying On-tech Equipment Co., Ltd
Dongyying On-tech Equipment Co, Ltd (DY On-tech) is a manufacturer of OEM precision aluminum and supplier for drilling equipment and tools.
We have more than 10 years fabricating experience and more than 3 years international trading experience.
DY On-tech dedicates to support our customers with good quality products and competitive price.
Our main goal is to establish long-term cooperation and to achieve win-win success with our customer together.
FAQ
Q1. What is the advantage about your company?
A1. Our company has professional team and professional production line.
Q2. Why should I choose your products?
A2. Our products are high quality and low price.
Q3. The logo and the color can be customized?
A3. Yes, we welcome you to sample custom.
Q4. Any other good service your company can provide?
A4. Yes,we can provide good after-sale and fast delivery.
We Recommend
Oil Water Separation Hydrocyclone/mud Solid Control Desilter
$2,769.00-3,538.00
Salt Water Separation Solid Control Sewage Sludge Remover
$1,353.00-1,363.00
New Arrivals
New products from manufacturers at wholesale prices
