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:
We have probably the most state-of-the-art output equipment, experienced and qualified engineers and workers, recognized good quality manage systems plus a friendly skilled income workforce pre/after-sales support 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: Uganda, Irish, Venezuela, We insist on "Quality First, Reputation First and Customer First". We are committed to providing high-quality products and good after-sales services. Up to now, our products have been exported to more than 60 countries and areas around the world, such as America, Australia and Europe. We enjoy a high reputation at home and abroad. Always persisting in the principle of "Credit, Customer and Quality", we expect cooperation with people in all walks of life for mutual benefits.

The product manager is a very hot and professional person, we have a pleasant conversation, and finally we reached a consensus agreement.
