We aim to sell high-quality and high-performance 42CrMo drilling tube, 4140 seamless tube, Conventional Tank Welding Rotator, which are extremely competitive in the market in terms of function and price. Deep customer cooperation: customer success is our success. Over the years, we have attached great importance to market development and pursued the concept of integrity first and service first. We are keeping durable business relationships with more than 200 wholesalers all over the world.
Introduction
Steel Tube Coupling is a kind of drilling tool in oil field, which i$ mainly used for tubing connection. The tubing coupling mainly solves the problem of fatigue fracture of existing coupling due to stress concentration.
Technical Parameter
Specification range | ||
OD | 42.16 MM - 508 MM(1.66"-20") | |
Materials | H40, J55, K55, N80-1, N80-Q, L80-l,L80-9Cr, L80- 13Cr, PI 10, Q125 | |
Executive standards | API 5CT, GB, IS011960, GOST | |
Thread connection | EUE, NUE, STC, LTC, BTC and Premium connection | |
Testing | NDT etc related rules of API 5CT and SB | |
Type | seamless |
Component composition
The tubing coupling structure is that the tubing end and the inner wall of the coupling body are connected by tapered thread, and the end of the coupling body and the tubing are connected by the same thread and the same pitch horizontal thread.
Equipment characteristics
The utility model has the characteristics of alleviating the stress concentration at the root of the outer thread of a single conical thread connecting tubing, and is not easy to produce fatigue fracture, and has good connection effect. Effective prevention of tubing string break-off accident.

In order to improve product quality and economic benefits, technical improvement and innovation must be carried out. After in-depth analysis and research, we decided to apply the new technology to our Carbon Steel EMT Tube Compression Coupling. Our company warmly invites domestic and overseas customers to come and negotiate business with us. You will be Unique with our hair products!!
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