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drill collar

120.0~500.0 USD
Min. Order: 1 Piece/Pieces
Trade Term: FOB
Payment Terms: L/C, T/T
Place of Origin: Beijing

Company Profile

Location: China (Mainland)
Business Type: Manufacturer
Main Products: PVC Coated Welded Wire Mesh, Welded Wire Mesh Panel, Galvanized Welded Wire Mesh

Product Detail

Means of Transport: Air
Brand Name: MTWK

Product Description

The drill collar are made of 4145H modified chromium-molybdenum alloy steel according to API Spec 7 and aSY/T 5144 . All threads can be phosphated,copperised or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and a special thread, the max diameter of drill collar is 14 inch.
Connection #
   
OD
   
ID
   
L mm
DF
mm
   
Bending strength ratio
   
mm
   
in
   
Mm
   
In
   
NC23-31
   
79.4
   
3 1/8
   
31.8
   
1 1/4
   
9150
   
76.2
   
2.57:1
   
NC26-35
   
88.9
   
3 1/2
   
38.1
   
1 1/2
   
9150
   
82.9
   
2.42:1
   
NC31-41
   
104.8
   
4 1/8
   
50.8
   
2
   
9150 or 9450
   
100.4
   
2.43:1
   
NC35-47
   
120.7
   
4 3/4
   
50.8
   
2
   
9150 or 9450
   
114.7
   
2.58:1
   
NC38-50
   
127.0
   
5
   
57.2
   
2 1/4
   
9150 or 9450
   
121.0
   
2.38:1
   
NC44-60
   
152.4
   
6
   
57.2
   
2 1/4
   
9150 or 9450
   
144.5
   
2.49:1
   
NC44-60
   
152.4
   
6
   
71.4
   
2 13/16
   
9150 or 9450
   
144.5
   
2.84:1
   
NC44-62
   
158.8
   
6 1/4
   
57.2
   
2 1/4
   
9150 or 9450
   
149.2
   
2.91:1
   
NC46-62
   
158.8
   
6 1/4
   
71.4
   
2 13/16
   
9150 or 9450
   
150.0
   
2.63:1
   
NC46-65
   
165.1
   
6 1/2
   
57.2
   
2 1/4
   
9150 or 9450
   
154.8
   
2.76:1
   
NC46-65
   
165.1
   
6 1/2
   
71.4
   
2 13/16
   
9150 or 9450
   
154.8
   
3.05:1
   
NC46-47
   
171.4
   
6 3/4
   
57.2
   
2 1/4
   
9150 or 9450
   
159.5
   
3.18:1
   
NC50-67
   
171.4
   
6 3/4
   
71.4
   
2 13/16
   
9150 or 9450
   
159.5
   
2.37:1
   
NC50-70
   
177.8
   
7
   
57.2
   
2 1/4
   
9150 or 9450
   
164.7
   
2.54:1
   
NC50-70
   
177.8
   
7
   
71.4
   
2 13/16
   
9150 or 9450
   
164.7
   
2.73:1
   
NC50-72
   
184.2
   
7 1/4
   
71.4
   
2 13/16
   
9150 or 9450
   
169.5
   
3.12:1
   
NC56-77
   
196.8
   
7 3/4
   
71.4
   
2 13/16
   
9150 or 9450
   
185.3
   
2.70:1
   
NC56-80
   
203.2
   
8
   
71.4
   
2 13/16
   
9150 or 9450
   
190.1
   
3.02:1
   
6 5/8 REG
   
209.6
   
8 1/4
   
71.4
   
2 13/16
   
9150 or 9450
   
195.7
   
2.93:1
   
NC61-90
   
228.6
   
9
   
71.4
   
2 13/16
   
9150 or 9450
   
212.7
   
3.17:1
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