Q355ME low-temperature seamless steel pipe is a steel pipe material with high strength and excellent performance. The following are some detailed explanations about Q355ME low-temperature seamless steel pipe:
First, the material identification of Q355ME low-temperature seamless steel pipe:
Q: The first letter of the Chinese pinyin of the word “Qu” represents the yield strength of steel, which highlights its high-strength characteristics.
355: It is the specified minimum upper yield strength value in megapascals (MPa), which ensures that the steel has excellent resistance to deformation when under pressure.
M: Indicates that the delivery state of the steel plate is TMCP, that is, thermomechanical rolling. This heat treatment method makes the steel have a more uniform and fine grain structure, thereby improving its comprehensive performance.
E: Represents the quality grade of E, which is a guarantee of the quality of the steel, ensuring that it can function stably and reliably during use.
Second, the performance characteristics of Q355ME low-temperature seamless steel pipe:
Excellent welding performance and cold forming performance enable it to be flexibly applied in various projects.
It has good fatigue resistance and corrosion resistance and can operate stably for a long time in harsh working environments.
Third, the application field of Q355ME low-temperature seamless steel pipe:
In construction projects: such as bridges, high-rise buildings, etc., its stable performance ensures the structural stability and safety of the building.
Mining equipment: used for the manufacture and maintenance of various mining equipment.
All kinds of construction machinery: such as excavators, loaders, etc., to improve construction efficiency.
Structural parts: such as structural parts of ships, vehicles, etc.
Fourth, the production process of Q355ME low-temperature seamless steel pipe:
Piercing: The first process of producing seamless steel pipes, which pierces solid pipe blanks into hollow rough pipes.
Rolling and expansion: After multiple rollings and expansion, the required outer diameter and wall thickness are obtained, the organizational structure of the steel pipe is optimized, and its mechanical properties and corrosion resistance are improved.
Heat treatment: including normalizing, tempering, quenching, etc., can further adjust the organizational structure of the steel pipe and improve the performance of the steel pipe.
Hot-dip galvanizing: forms a corrosion-resistant zinc-iron alloy layer on the surface of the steel pipe to enhance its corrosion resistance.
Post time: Jun-17-2025