What is galvanized seamless tube?
Galvanized seamless tube & pipe is a type of steel pipe that prevents rust and corrosion by coating the surface of the steel pipe with a layer of zinc. It is characterized by seamlessness, that is, seamless technology is used in the manufacturing process of steel tubes.
Advantages of galvanized seamless tube:
1. Good anti-corrosion performance. The galvanized layer can effectively protect steel pipes from corrosion and rust, thereby extending the service life of steel pipes.
2. High intensity. The internal and external galvanized seamless steel tubes adopt seamless manufacturing technology during the manufacturing process, thereby enhancing the strength of the steel pipes and meeting higher usage requirements.
3. Good high temperature resistance. The galvanized layer of internal and external galvanized seamless steel tubes can survive high temperatures and is more stable for use in high temperature environments.
4. Stable quality. The manufacturing process of internal and external galvanized seamless steel tubes is standardized, the quality is stable, and it can meet different usage requirements.
Production process of galvanized seamless tube:
1. Preparation of raw materials. The production of galvanized seamless tubes requires the use of high-quality steel, generally low carbon steel, high carbon steel, alloy steel, etc.
2. Production of steel tubes. Steel is made into steel pipes by cold drawing or hot rolling to form the initial dimensions.
3. Preprocessing. The surface of the steel pipe is cleaned and pickled to remove grease and impurities on the surface of the steel pipe.
4. Galvanized treatment. The treated steel pipe is immersed in a galvanizing bath and a layer of zinc is formed through a chemical reaction, making the steel pipe corrosion-resistant and weather-resistant.
5. Inspection and packaging. Inspect the galvanized steel tube to see if its appearance and size meet the requirements. Finally the steel pipes are packed for easy transportation and storage.
Key points for purchasing galvanized seamless tubes:
1. When purchasing, pay attention to the pipe diameter and wall thickness requirements, and make a reasonable selection based on the use environment and requirements.
2. Pay attention to the appearance quality of the steel tube and the thickness and uniformity of the galvanized layer on the surface.
3. Check whether the steel tube manufacturer has relevant certificates and standards to ensure the quality and safety of the steel pipe.
4. Choose an experienced supplier and learn about after-sales service and quality assurance when purchasing.
Application areas of galvanized seamless tubes:
1. Construction field.
Galvanized seamless tubes are widely used in construction, such as building structures, steel frames, building guardrails, etc. Due to its good anti-corrosion properties, it can maintain the beautiful appearance of the building for a long time.
2. Oil and gas field.
In oil and gas extraction, high-strength, corrosion-resistant pipes are required, and galvanized seamless tubes can also be used for this task.
3. Tap water field.
Galvanized steel-free pipes are also widely used in the tap water field. Because its galvanized layer prevents pipes from rusting, it ensures the cleanliness and hygiene of tap water.
Tips: ASTM A53 covers seamless and welded steel pipe with nominal wall thickness. The surface condition is usually black and hot-dipped galvanized. ASTM A53 is produced mainly for pressure and mechanical applications, and is also used for transport of steam, water, gas line pipes.
