Xi'An Tiptop Machinery Co., Ltd.
| Payment Terms | T/T, L/C, D/A, D/P |
| Supply Ability | 600 pcs per month |
| Delivery Time | 20-90 days |
| Packaging Details | Framework Bundle |
| Material | P110, P530 |
| Application | Directional Drilling |
| Size | 3 1/8''~11'' |
| Connection | API Connection |
| Product Name | NMDC |
| Type | Drill Collar |
| Brand Name | TIPTOP |
| Model Number | Non-Magnetic Drill Collar |
| Certification | MTC |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C, D/A, D/P | Supply Ability | 600 pcs per month |
| Delivery Time | 20-90 days | Packaging Details | Framework Bundle |
| Material | P110, P530 | Application | Directional Drilling |
| Size | 3 1/8''~11'' | Connection | API Connection |
| Product Name | NMDC | Type | Drill Collar |
| Brand Name | TIPTOP | Model Number | Non-Magnetic Drill Collar |
| Certification | MTC | Place of Origin | China |
| High Light | directional drilling tools ，down the hole drilling tools | ||
Directional Downhole Drilling Tools, Non-Magnetic Drill Collar, P530, P110
Tiptop provides excellent Non-Magnetic Drill Collar for Directional Drilling. Non magnetic material is high purity austenitic stainless steel. Strict control of chemical composition and special forging process guarantee the excellent mechanical properties of our non magnetic drill collar.
Non Magnetic Properties:
Relative Permeability: Max. 1.005
Hot Spot/Field Gradient: Max ±0.05μT
Special Treatment on ID: Roller Burnishing. (after roller burnishing, a comprehensive layer come into being)
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.
Please contact us for your non-magnetic drill collar inquiries.
Specification of non magnetic drill collars:
| Tool Joint | OD in | Bore d in + 1/16 -0 | Length ft +6 -0 | Bevel Diameter in ±1/64 in | BSR |
| NC23-31 | 3 1/8 | 1 1/4 | 30 | 3 | 2.57:1 |
| NC26-35 | 3 1/2 | 1 1/2 | 30 | 3 17/64 | 2.42:1 |
| NC35-41 | 4 1/8 | 2 | 30 or 31 | 3 61/64 | 2.43:1 |
| NC35-47 | 4 3/4 | 2 | 30 or 31 | 4 33/64 | 2.58:1 |
| NC38-50 | 5 | 2 1/4 | 30 or 31 | 4 49/64 | 2.38:1 |
| NC44-60 | 6 | 2 1/4 | 30 or 31 | 5 11/16 | 2.49:1 |
| NC44-60 | 6 | 2 13/16 | 30 or 31 | 5 11/16 | 2.84:1 |
| NC44-62 | 6 1/4 | 2 1/4 | 30 or 31 | 5 7/8 | 2.91:1 |
| NC46-62 | 6 1/4 | 2 13/16 | 30 or 31 | 5 29/32 | 2.63:1 |
| NC46-65 | 6 1/2 | 2 1/4 | 30 or 31 | 6 3/32 | 2.76:1 |
| NC46-65 | 6 1/2 | 2 13/16 | 30 or 31 | 6 3/32 | 3.05:1 |
| NC46-67 | 6 3/4 | 2 1/4 | 30 or 31 | 6 9/32 | 3.18:1 |
| NC50-70 | 7 | 2 1/4 | 30 or 31 | 6 31/64 | 2.54:1 |
| NC50-70 | 7 | 2 13/16 | 30 or 31 | 6 31/64 | 2.27:1 |
| NC50-72 | 7 1/4 | 2 13/16 | 30 or 31 | 6 43/64 | 3.12:1 |
| NC56-77 | 7 3/4 | 2 13/16 | 30 or 31 | 7 19/64 | 2.70:1 |
| NC56-80 | 8 | 2 13/16 | 30 or 31 | 7 31/64 | 3.02:1 |
| 6 5/8 REG | 8 1/4 | 2 13/16 | 30 or 31 | 7 45/64 | 2.93:1 |
| NC61-90 | 9 | 2 13/16 | 30 or 31 | 8 3/8 | 3.17:1 |
| 7 5/8 REG | 9 1/2 | 3 | 30 or 31 | 8 13/16 | 2.81:1 |
| NC70-97 | 9 3/4 | 3 | 30 or 31 | 9 5/32 | 2.57:1 |
| NC70-100 | 10 | 3 | 30 or 31 | 9 11/32 | 2.81:1 |
| 8 5/8 REG | 11 | 3 | 30 or 31 | 10 1/2 | 2.84:1 |
Mechanical Properties:
| Steel Grade | OD Range in | Yield Strength Rt | Tensile Strength Rm | Elongation A (%) | Impact Value Akv | Hardness Brinell (HB) | ||
| Mpa | ksi | Mpa | ksi | |||||
| SLW-1 | 3 1/8 through 6 7/8 | ≥758 | ≥110 | ≥827 | ≥120 | ≥25 | ≥150 longitudinal | 285-360 |
| 7 through 11 | ≥689 | ≥100 | ||||||
| SLW-2 | 3 1/8 through 6 7/8 | ≥827 | ≥120 | ≥896 | ≥130 | ≥25 | ≥150 longitudinal | 285-360 |
| 7 through 11 | ≥758 | ≥110 | ||||||
| SLW-3 | 3 1/8 through 6 7/8 | ≥765 | ≥140 | ≥1034 | ≥150 | ≥20 | ≥90 longitudinal | 330-400 |
| 7 through 11 | ≥896 | ≥130 | ||||||
| SLW-4 | 3 1/8 through 6 7/8 | ≥827 | ≥120 | ≥896 | ≥130 | ≥20 | ≥75 longitudinal | 285-360 |
| 7 through 11 | ≥758 | ≥110 | ||||||
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter,Trading Company,Seller,Other
Year Established:
2006
Total Annual:
5000000-10000000
Employee Number:
50~200
Ecer Certification：
Active Member
Tiptop was established in the year of 2006, located in the center of China, Xi’an City, which is an ISO certified comprehensive manufacturer & distributor in the field of Oil & Gas upstream, downhole drilling tools, downhole fishing tools, downhole mud motor, and servicing the worldwid... Tiptop was established in the year of 2006, located in the center of China, Xi’an City, which is an ISO certified comprehensive manufacturer & distributor in the field of Oil & Gas upstream, downhole drilling tools, downhole fishing tools, downhole mud motor, and servicing the worldwid...
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