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Drill collar in Oil and Gas/Non magnetic API 7-1 drill collar in Drill Rod for oil drilling equipment
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Product Details
| Brand Name | APS | Model Number | Drill collar/Non magetic drill collar | |
| Type | Drill Collar | Machine Type | Drilling Tool | |
| Certification | API | Material | Other, Alloy steel, AISI4145H Mod, Alloy steel | |
| Processing Type | Forging | Use | Well Drilling |
Product Description
Drill collar in Oil and Gas/Non magnetic API 7-1 drill collar in Drill Rod for oil drilling equipment
1. Drill collar mainly used for providing drill pressure, is manufactured in accordance with API Spec 7-1. The material of standard drill collar is AISI 41545H MOD. Trace elements such as sulfur and phosphorus are reduced during the steel making process, thus making the material get high physical properties.
2. Non-magnetic drill collar is made from chrome manganese, low carbon austenitic alloy obtained by combining a proprietary chemical analysis and a rotary hammer forging process. The material is resistant to stress corrosion cracking, with high mechanical properties, low magnetic permeability, excellent mechanical machining properties and no tendency to galling.
Material: | AISI4145H mod |
OD: | 79.4 - 279.4 mm |
Manufacture technique: | Hot forged and heat treated |
Inspection: | MT&UT Inspection |
Connection: | NC23-31,NC31-41,NC35-47,NC38-50,NC44-60,NC50-70,7 5/8REG, 8 5/8REG |
Test reports | Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement |
Surface finishes: | Black, Peeled, Turned & Polished |
Process: | EAF + LF + VD +(ESR) + Forged + Heat Treatment (optional) |
Standard: | API Spec 7-1 |
Material AISI 4145H, 4145HMod / Non-Magnetic Drill Collar
OD+4mm | Connection | ID+1.59mm | Length±152.4mm | Chamfering Diameter ±0.4mm | Length of one spiral ±25.4mm |
79.4 | NC23 | 31.8 | 9140 or 9450 | 76.2 | 679 |
88.9 | NC26 | 38.1 | 9140 or 9450 | 82.9 | 679 |
104.8 | NC31 | 50.8 | 9140 or 9450 | 100.4 | 914 |
114.3 | NC31 | 50.8 | 9140 or 9450 | 100.4 | 914 |
120.6 | NC35 | 50.8 | 9140 or 9450 | 114.7 | 965 |
127 | NC38 | 57.2 | 9140 or 9450 | 121 | 965 |
139.7 | NC40 | 57.2 | 9140 or 9450 | 132.2 | 1067 |
158.8 | NC46 | 71.4 | 9140 or 9450 | 144.5 | 1067 |
168.3 | NC50 | 71.4 | 9140 or 9450 | 154.8 | 1168 |
177.8 | NC50 | 71.4 | 9140 or 9450 | 164.7 | 1168 |
196.8 | NC50/NC56 | 71.4 | 9140 or 9450 | 185.3 | 1626 |
203.2 | NC56/6 5/8REG | 71.4 | 9140 or 9450 | 190.1 | 1727 |
209.6 | 6 5/8REG | 71.4 | 9140 or 9450 | 195.6 | 1727 |
215.9 | 6 5/8REG | 71.4 | 9140 or 9450 | 195.6 | 1727 |
228.6 | 6 5/8REG | 71.4 | 9140 or 9450 | 212.7 | 1829 |
241.3 | 7 5/8REG | 76.2 | 9140 or 9450 | 223.8 | 1829 |
254 | 7 5/8REG/8 5/8REG | 76.2 | 9140 or 9450 | 237.3 | 1930 |
279.4 | 8 5/8REG | 76.2 | 9140v9450 | 266.7 | 2032 |
- Non-Magnetic Drill Collar Mechanical Property
Fishing Neck OD | Yield Strength Rf(MPa) | Tensile Strength Rm(MPa) | Elongation Ali(%) | Reduction of Area (%) | Impact Value (Joule) | Hardness HB |
3 1/2”-6 7/8” | ≥758 | ≥827 | ≥18 | ≥45 | ≥81J(RT) | 285~341 |
7”-11” | ≥689 | ≥758 | ≥20 | ≥45 | ≥81J(RT) | 285~341 |
A relativepermeability: μ(Gauss/Oersted)<1.010
B magneticfieldgradient: Max. Deviation of the Magnetic field in the inner hole to uniform magnetic field: ≤±0.05μT
C intergranularcorrosion (Anti corrosion): as per ASTM A262E for intergranular corrosion test.
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Contact Us
- Shaanxi APS Machinery Equipment Co., Ltd.
- Contact nameKaren yan Chat Now
- Phone86-029-63350698
- AddressRoom 11911, Shuzishenghuo Building A, Keji 5th Road, High-Tech Zone
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