Factory Making Gasoline Engine Water Pump - Drill Collar-Slick and Spiral Downhole Pipe – VS
Factory Making Gasoline Engine Water Pump - Drill Collar-Slick and Spiral Downhole Pipe – VS Detail:
The drill collar is made from AISI 4145H or finish rolling structural alloy steel, processed as per API SPEC 7 standard.
In the entire producing process of drill collar, the test data of each item’s performance test, from workblank, heat treatment to connecting thread and other manufacturing process, are traceable.
Drill collars’ detection is completely as per API standard.
All the threads undergo phosphatization or copper plating treatment so as to increase their corrosion resistance and avoid tool threads’ thread gluing phenomenon.
Our company can process slips and elevator grooves on the drill collar as per user’s requirements.
Technical Parameters:
|
Drill collar thread model |
O.D. |
I.D. |
Length mm |
||
|
mm |
in |
mm |
in |
||
|
NC23-31 |
79.4 |
3-1/8 |
31.8 |
1-1/4 |
9150 |
|
NC26-35 |
88.9 |
3-1/2 |
38.1 |
1 1/2 |
9150 |
|
NC31-41(2-7/8IF) |
104.8 |
4-1/8 |
50.8 |
2 |
9150 |
|
NC35-47 |
120.7 |
4-3/4 |
50.8 |
2 |
9150 |
|
NC38-50(3-1/2IF) |
127.0 |
5 |
57.2 |
2-1/4 |
9150 |
|
NC44-60 |
152.4 |
6 |
57.2 |
2-1/4 |
9150/9450 |
|
NC44-60 |
152.4 |
6 |
71.4 |
2-13/16 |
9150/9450 |
|
NC44-62 |
158.8 |
6-1/4 |
57.2 |
2-1/4 |
9150/9450 |
|
NC46-62(4IF) |
158.8 |
6-1/4 |
71.4 |
2-13/16 |
9150/9450 |
|
NC46-65(4IF) |
165.1 |
6-1/2 |
57.2 |
2-1/4 |
9150/9450 |
|
NC46-65(4IF) |
165.1 |
6-1/2 |
71.4 |
2-13/16 |
9150/9450 |
|
NC46-67(4IF) |
171.4 |
6-3/4 |
57.2 |
2-1/4 |
9150/9450 |
|
NC50-67(4-1/2IF) |
171.4 |
6-3/4 |
71.4 |
2-13/16 |
9150/9450 |
|
NC50-70(4-1/2IF) |
177.8 |
7 |
57.2 |
2-1/4 |
9150/9450 |
|
NC50-70(4-1/2IF) |
177.8 |
7 |
71.4 |
2-13/16 |
9150/9450 |
|
NC50-72(4-1/2IF) |
184.2 |
7-1/4 |
71.4 |
2-13/16 |
9150/9450 |
|
NC56-77 |
196.8 |
7-3/4 |
71.4 |
2-13/16 |
9150/9450 |
|
NC56-80 |
203.2 |
8 |
71.4 |
2-13/16 |
9150/9450 |
|
6-5/8REG |
209.6 |
8-1/4 |
71.4 |
2-13/16 |
9150/9450 |
|
NC61-90 |
228.6 |
9 |
71.4 |
2-13/16 |
9150/9450 |
|
7-5/8REG |
241.3 |
9-1/2 |
76.2 |
3 |
9150/9450 |
|
NC70-97 |
247.6 |
9-3/4 |
76.2 |
3 |
9150/9450 |
|
NC70-100 |
254.0 |
10 |
76.2 |
3 |
9150/9450 |
|
8-5/8REG |
279.4 |
11 |
76.2 |
3 |
9140/9450 |
Product detail pictures:
Related Product Guide:
To meet the customers' over-expected pleasure , now we have our potent staff to offer our greatest general service which includes internet marketing, sales, planning, output, quality controlling, packing, warehousing and logistics for Factory Making Gasoline Engine Water Pump - Drill Collar-Slick and Spiral Downhole Pipe – VS , The product will supply to all over the world, such as: Bulgaria, Palestine, Ethiopia, We have established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Please feel free to contact us for more details.
The factory has advanced equipment, experienced staffs and good management level, so product quality had assurance, this cooperation is very relaxed and happy!




