The cold working performance of A709 Gr 50 low alloy steel sheet and so on steel structure engineering steel is good, which can ensure that the steel will not crack or brittle fracture during high-temperature processing, and will not have a great impact on strength, plasticity and toughness due to processing. The durability of A709 Gr 50 low alloy steel sheet and so on steel structure engineering steel is good. Durability refers to the service life of steel structure. The main factor affecting the service life of steel is the poor corrosion resistance of steel, followed by the deterioration of mechanical properties of steel under long-term load, repeated load and dynamic load.
Cleveland cliffs, the largest A709 Gr 50 low alloy steel sheet iron ore company in North America, announced on April 13 that its Northshore mine in Minnesota and Tilden mine in Marquette County, Michigan, will suspend production based on the current market environment. The company said it would reduce inventory levels in both regions, while continuing to A709 Gr 50 low alloy steel sheet ship iron ore to its customers to meet commercial agreements.
After the steel plate is produced from the original factory, it will pass through a series of transportation and storage links and then be delivered to the processing workshop. During this period of time, the steel plate surface will contact with the air continuously, which will inevitably produce a layer of oxide skin. The oxide skin is a difficulty in the treatment process. It has high melting point, is not easy to burn and dissolve, increases preheating time, reduces cutting speed. Therefore, the surface of the A709 Gr 50 low alloy steel sheet plate should be derusted before cutting.
What should be paid attention to when using A709 Gr 50 low alloy steel sheet, carbon steel? First, the strength level of carbon steel is low and it is easy to fracture, so carbon steel is not suitable for high strength engineering. Second, the heat-resistant performance of carbon steel is relatively poor, which can not be applied in the long-term high-temperature fields such as boilers. Third, the carbon steel is extremely easy to rust, so it is not suitable for water transport projects. Therefore, the use of carbon steel depends on the use of the environment, if it is harsh conditions, it is better to choose other steel materials.
