HDD and drilling API standard

Describe:
HDD drill pipe production is divided into two processes, one is friction welding, and the other is integral drill pipe. The main characteristics of high-quality HDD tubes are durability, accuracy and manageability. The drill pipe is made of high-quality alloy, and the thread is friction welded with the seamless steel pipe.

1. Use American MTI equipment for friction welding, computer automatic control, heat treatment, grinding, and magnetic particle testing to ensure the high quality of the finished product.
2. Processing can be provided according to customer requirements. The finished product is hard-bent, with high hardness and no cracking.
3. The tool joints are processed by a 1500T precision forging press to ensure the quality of the joints and have high compactness, cleanliness, wear resistance, and excellent mechanical properties of homogeneity.

Quality Control
Quality guarantee is not only responsible for customers, but also the assurance of enterprise's steady development. The necessary test equipment and the effective & perfect production process control is the assurance of product quality. Taking the spirit of "To win the market with innovation, to serve the customers with friendship, to build the brand with quality, to develop the enterprise with sincerity", we utilize the advanced testing methods to make each product meticulously.
The raw materials selected by our company are all the alloy structure steels for geographical usage produced by Baogang Steel. After laboratory tests, after laboratory tests, both ends of a pipe are upsetted and proceeded to overall heat treatment, then friction welded. Before finished drill pipes are plated and packaged, a series of tests have to be implemented including hardness, metallurgical structure, physical performances, etc.