With the continuous development of the industry, the requirements for the performance of steel plates are getting higher and higher. In various application scenarios, different types of steel plates play an important role. Among them, NM400 and NM500 are two commonly used wear-resistant steel plates, and they have some differences in performance. This article will focus on the differences between NM400 and NM500 steel plates.
1. Overview. NM400 is a high-strength wear-resistant steel plate with a tensile strength of more than 400MPa. It has good wear resistance, impact resistance and corrosion resistance, and is widely used in mining, construction, machinery manufacturing and other fields. NM500 is a higher strength grade of wear-resistant steel plate, its tensile strength reaches more than 500MPa, with higher wear resistance and durability.
2. Mechanical properties.
1.Tensile strength: The tensile strength of NM400 is generally between 400-520MPa, while the tensile strength of NM500 can reach 500-620MPa. As a result, NM500 has higher strength and load-bearing capacity.
2.Toughness: Both NM400 and NM500 have good toughness and are able to withstand large impacts. However, the toughness of the NM500 is slightly better than that of the NM400, making it more reliable in complex working environments.
3.Abrasion resistance: Abrasion resistance is one of the important indicators of wear-resistant steel plates. Both NM400 and NM500 have high wear resistance, but the wear resistance of NM500 is slightly better than that of NM400. This is mainly due to its higher hardness and finer metallographic structure.
3. Application scenarios.
1.Mining machinery: In mining, NM400 and NM500 steel plates are widely used in the manufacture of various mining machinery, such as excavators, loaders, crushers, etc. They are able to withstand the harsh environment and heavy wear and tear of the mine, ensuring the normal operation of the machinery.
2.Building structure: In the field of construction, NM400 and NM500 steel plates can be used to manufacture various building structural parts, such as bridges, support structures for high-rise buildings, etc. They improve the durability and safety of buildings and extend their service life.
3.Shipbuilding: In shipbuilding, NM400 and NM500 steel plates can be used to manufacture key parts such as hulls and decks. They are able to withstand the corrosion and wear of the marine environment, ensuring the normal operation and safety of the ship.
4.Petrochemical: In the petrochemical industry, NM400 and NM500 steel plates can be used to manufacture various pressure vessels, pipelines, storage tanks and other equipment. They can withstand high temperatures, high pressures and corrosive media, ensuring the safety and stability of petrochemical production.
Fourth, summary. To sum up, there are certain differences between NM400 and NM500 steel plates in terms of mechanical properties and application scenarios. NM500 has higher strength and abrasion resistance, making it suitable for harsher working environments. When choosing which steel plate to use, it needs to be considered comprehensively according to factors such as specific working conditions, mechanical performance requirements and economic costs. With the continuous progress of technology and the growing demand for applications, NM400 and NM500 steel plates will be applied and developed in a wider range of fields.