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Drill Collar
Drill Collar
Supplier Info
[China Supplier]
Contact Person : Mr. Shang Eric
Tel : 86-0546-8180292
Fax : 86-0546-8180727
Product Detail
1.Low carbon steel,stainless steel,etc 2.OD:79.4-279.4mm 3.Factory directly 4.Timely delivery 5.API Spec 7-1

1. Material: Non magnetic steel

2. Shape: It is the round pipe with smooth surface and thick wall, and the both ends are machined screw thread for connection.

3. Use: It is mainly used for the inspection in the process of petroleum drilling.

4. Standard: API Spec 7-1 or SY/T5144 Standard.

5. Inspection&Test: When producing, traceability are maintained from the receipt of raw material to completion of final products, and serial numbers are die-stamped on each workpiece body. During each manufacturing process, inspection and test are performed.

6. Magnetic permeability(MPS=1×105/4∏A/m)

 1). Average: Ur<1.010.

 2). Magnetic Field Gradient: ΔB≤0.05μT.

Drill Collar

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