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HENAN WEIN INDUSTRY CO.,LTD.
HENAN WEIN INDUSTRY CO.,LTD.  

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Drill collar 

Price: 3000.0~6000.0 USD 
Payment Terms: T/T,L/C 
Place of Origin: Henan, China (Mainland) 
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Product Detail

Model No.: 3 1/8"-11"
Production Capacity: 30000MT
Delivery Date: about 30 days
Material: AISI 4145h
Means of Transport: Ocean,Air
Packing: steel frame
Standard: API Spec.7

Drill collar are made from 4145H modified chromium-molybdenum alloy steel acc to API Spec.7 and SY/T5144


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
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Fax: 86-371-65807519
Mobile: 139 0386 6341
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Company Info

HENAN WEIN INDUSTRY CO.,LTD. [China (Mainland)]


Business Type:Manufacturer, Trading Company
City: Zhengzhou
Province/State: Henan
Country/Region: China (Mainland)

wei huang:   skype

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