Stainless Steel Alloy Seamless Tubes Pipes Manufacturers

Industry knowledge

What steps are included in the finishing process used in the production of stainless steel alloy seamless pipes? Such as head cutting, deburring, straightening, pickling, etc. How do these steps ensure the final quality of the steel pipe?

Our factories are all ISO and PED certified, and products can be produced in accordance with ASTM, JIS, DIN, EN, GOST and other standards. In the production process of stainless steel alloy seamless pipes, the finishing process is a crucial link to ensure product quality.
Overview of finishing process
The finishing process is the last key process in the production process of stainless steel alloy seamless pipes, which is directly related to the appearance quality, dimensional accuracy and internal cleanliness of the product. Through a series of refined processing steps, we can effectively improve the comprehensive performance of steel pipes and meet the needs of various industries for high-quality seamless pipes.
Steps and functions of finishing process
1. Head cutting
Step description: Head cutting is to cut off the irregular parts at both ends of the steel pipe to ensure the accuracy of the length of the steel pipe and the flatness of the end face. This step is usually carried out using an automatic pipe cutting machine, which can complete the cutting task efficiently and accurately.
Quality assurance: Head cutting can remove defects such as shrinkage and burrs formed during hot rolling or cold drawing of steel pipes, avoiding stress concentration or leakage problems in subsequent processing or use. At the same time, precise head cutting can also ensure the consistency of steel pipe length and meet customers' customized needs.
2. Deburring
Step description: Deburring is to further clean the tiny protrusions or sharp edges on the inner and outer walls and end faces of the steel pipe to prevent scratching the equipment or affecting the sealing performance during use. This step often uses mechanical grinding, sandblasting or electrochemical deburring.
Quality assurance: Deburring can significantly improve the surface finish and flatness of the steel pipe and reduce the risk of wear and leakage caused by burrs. At the same time, it can also enhance the connection reliability of the steel pipe with other components and improve the stability of the overall system.
3. Straightening
Step description: Straightening is to correct the bending of the steel pipe through mechanical equipment to meet the specified straightness and roundness requirements. This step is crucial to ensure the geometric shape and dimensional accuracy of the steel pipe.
Quality assurance: Straightening can eliminate the defects of bending and twisting of steel pipes during the manufacturing process, ensure that the steel pipes can smoothly flow the medium during use, reduce resistance and energy consumption. At the same time, it can also improve the appearance quality of the steel pipe and enhance the market competitiveness of the product.
4. Pickling
Step description: Pickling is to use acidic solution to remove oxides, rust and other impurities on the surface of the steel pipe, and at the same time form a dense passivation film on its surface. This step has a significant effect on improving the corrosion resistance and surface quality of the steel pipe.
Quality assurance: Pickling can completely remove pollutants on the surface of the steel pipe, reduce performance degradation and shortened life caused by corrosion. At the same time, the formed passivation film can effectively prevent new corrosion from occurring, and improve the durability and reliability of the steel pipe. In addition, pickling can make the surface of the steel pipe smoother, which is conducive to subsequent processing and connection operations.
The impact of finishing process on the final quality
Through the implementation of the above finishing process steps, we can ensure that the final quality of stainless steel alloy seamless pipes meets or even exceeds the requirements of international standards. Specifically:
Improved precision: The cutting and straightening treatments ensure the high precision of the geometric dimensions of the steel pipe, such as length, straightness and roundness, and meet the strict requirements of various industries for the dimensional accuracy of seamless pipes.
Improved surface quality: Deburring and pickling treatments significantly improve the surface finish and flatness of the steel pipe, reducing the performance degradation and shortened life caused by surface defects.
Performance enhancement: The finishing process can also effectively remove the residual stress and impurities inside the steel pipe, improve its mechanical properties and corrosion resistance, and ensure that the steel pipe can still maintain good working condition under harsh working conditions.
Improved customer satisfaction: High-quality products and strict quality management plans have won wide praise and trust from customers, winning us more market share and business opportunities.
Our factory has passed ISO and PED certifications and strict quality management plans to ensure the excellent quality of stainless steel alloy seamless pipes. As one of the key links, the finishing process has played an important role in improving the final quality of the steel pipe. In the future, we will continue to adhere to the principle of "quality first, customer first" to continuously innovate and develop to provide more high-quality products and services for more industries.