There are 22 Non Magnetic Drill Collar from 7 suppliers on EC21.com
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The Non-magnetic drill collar is made of a kind of low carbon high chrome-manganese alloy steel,material normally is P530 or P550, which is refined after strict chemical composition ratio and forged to achieve its mechanical properties, this kind of drill collar has superb mechanical properties of low permeability and high strength. Mainly used for downhole drilling.
Our Strict control of chemical composition and special forging process guarantee the excellent mechanical properties of our non magnetic drill collar.
Connection Type | OD | ID | Length | ||
mm | in | mm | in | ||
NC23-31 | 79.4 | 3 1/8 | 31.8 | 1 1/2 | Available from 10 to 31 ft |
NC26-35(2 3/8 IF) | 88.9 | 3 1/2 | 38.1 | 1 1/2 | |
NC31-41(2 7/8 IF) | 104.8 | 4 1/8 | 50.8 | 2 | |
NC35-47 | 120.6 | 4 3/4 | 50.8 | 2 | |
NC38-50(31/2IF) | 127 | 5 | 57.2 | 2 1/4 | |
NC44-60 | 152.4 | 6 | 57.2 | 2 1/4 | |
NC44-60 | 152.4 | 6 | 71.4 | 2 13/16 | |
NC44-62 | 158.8 | 6 1/4 | 57.2 | 2 1/4 | |
NC44-62(4IF) | 158.8 | 6 1/2 | 71.4 | 2 13/16 | |
NC44-65(4IF) | 165.1 | 6 1/2 | 57.2 | 2 1/4 | |
NC44-65(4IF) | 165.1 | 6 1/2 | 71.4 | 2 13/16 | |
NC44-67(4IF) | 171.4 | 6 3/4 | 57.2 | 2 1/4 | |
NC50-672(41/2IF) | 171.4 | 6 3/4 | 71.4 | 2 13/16 | |
NC50-70(41/2IF) | 177.8 | 7 | 57.2 | 2 1/4 | |
NC50-70(41/2IF) | 177.8 | 7 | 71.4 | 2 13/16 | |
NC50-72(41/2IF) | 184.2 | 7 1/4 | 71.4 | 2 13/16 | |
NC56-77 | 196.8 | 7 3/4 | 71.4 | 2 13/16 | |
NC56-80 | 203.2 | 8 | 71.4 | 2 13/16 | |
6 5/8 REG | 209.6 | 8 1/4 | 71.4 | 2 13/16 | |
NC61-90 | 228.6 | 9 | 71.4 | 2 13/16 | |
7 5/8 REG | 241.3 | 9 1/2 | 76.2 | 3 | |
NC70-97 | 247.6 | 9 3/4 | 76.2 | 3 | |
NC70-100 | 254 | 10 | 76.2 | 3 | |
8 5/8 REG | 279.4 | 11 | 76.2 | 3 | |
MECHANICAL PROPERTIES AS PER ASTM A370 | |||||||||
Item | Tensile Strength (Mpa) | Yield Strength 0.2% (Mpa) | Elongation% | Charpy Impact Work(J) | Brinell Hardness | Reduction Area(%) | IGC | Field Gradient | Relative magnetic per meability |
Requested | ≥827 | ≥758 | ≥25 | ≥122 | ≥285 | ≥50 | / | ±0.05 | ≤1.010 |
Actual | 1135 | 1038 | 26 | 226 | 304 | 70 | Pass | Pass | 1.003 |
Advantages:
Increase the corrosion resistance properties;
Increase the surface hardness of bore up to HB400;
Increase surface finish of bore to Ra≤3.2μm
Test and inspection carried out on each bar during production :
Chemical Composition;
Tensile Test;
Impact Test;
Hardness Test;
Metallographic Test (Grain Size);
Corrosion Test (According to ASTM A262 Practice E);
Ultrasonic Test over the whole length of the bar (according to ASTM A388);
Relative magnetic permeability test;
Hot Spot Test;
Dimension Inspection, etc.
| Registration Date | 2022/09/19(Year/Month/Date) |
|---|---|
| Buyer / Seller in EC21 | Seller |
| Business Type | Manufacturer |
| Year established | 2013 |
| Employees total | 51 - 100 |
| Annual revenue | USD 5,000,001 - 10,000,000 |
| Company | Xi'an Tiptop Machinery Co.,Ltd |
|---|---|
| Address | window cityXianShanxii710000China |
| Phone | 86 - 29 - 81121337 |
| Homepage | http://www.tiptopm.com/ |
| Contact | DanZhang |