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[Province: Henan ]   
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Drill collar
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Drill collar

Price: 3000.0~6000.0 USD
Trade Term: FOB
Payment Terms: T/T,L/C
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Basic Info.
  • Standard: API Spec.7 
  • Material: AISI 4145h 
  • Model No.: 3 1/8"-11" 
  • Place of Origin: Henan  
  • Min.Order: 1 Piece/Pieces
  • Means of Transport: Ocean, Air
Supply Capacity
  • Production Capacity: 30000MT
  • Packing:steel frame
  • Delivery Date: about 30 days

Drill collar are made from 4145H modified chromium-molybdenum alloy steel acc to API Spec.7 and SY/T5144. All threads can be phosphated,copperised or cold worked. All threads are machined with CNC lathes double-shouldered and special, and the max diameter of Drill collar is 14 in.





Standard sizes,bores and connections of Drill collar
Connection
OD
ID
L(mm)
DF mm Bending strength ratio
Bend 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
NC 46-65
165.1
6 1/2
57.2
2 1/4
9150 or 9450
154.8
2.76:1
NC 46-65
165.1
6 1/2
71.4
2 13/16
9150 or 9450
154.8
3.05:1
NC 46-47
171.4
6 3/4
57.2
2 1/4
9150 or 9450
159.5
3.18:1
NC 50-67
171.4
6 3/4
71.4
2 13/16
9150 or 9450
159.5
2.37:1
NC 50-70
177.8
7
57.2
2 1/4
9150 or 9450
164.7
2.54:1
NC 50-70
177.8
7
71.4
2 13/16
9150 or 9450
164.7
2.73:1
NC 50-72
184.2
7 1/4
71.4
2 13/16
9150 or 9450
169.5
3.12:1
NC 56-77
196.8
7 3/4
71.4
2 13/16
9150 or 9450
185.3
2.70:1
NC 56-80
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
7 5/8 REG
241.3
9 1/2
76.2
3
9150 or 9450
223.8
2.81:1
NC70-97
247.6
9 3/4
76.2
3
9150 or 9450
232.6
2.57:1
NC70-100
254.0
10
76.2
3
9150 or 9450
237.3
2.81:1
8 5/8 REG
279.4
11
76.2
3
9150 or 9450
266.7
2.84:1

Send message to this supplier
Mr. Huang Wei
Tel: 86-371-65807518
Mobile: 13903866341
Enter between 20 to 3,000 chatacters.
Contact Method
HENAN WEIN INDUSTRY CO.,LTD.
Room1403, A Building(10#),Jincheng Oriental International, CBD Neihuan Road,, Zhengzhou, Henan, China (Mainland) / 450046
Fax: 86-371-65807519
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