Q460 series steel means that the plastic deformation of the steel material reaches 460 MPa, that is, when the external force is released, the steel can only maintain the shape of the force and cannot return to its original shape. This strength is greater than that of ordinary steel. The general quality grade symbols are respectively A, B, C, D, E. On the basis of ensuring low carbon equivalent, Q460 appropriately increases the content of microalloying elements. Good welding performance requires low carbon equivalent of steel A572 grade 50 ms steel coil, and the increase of microalloying elements increases the strength of steel while also increasing the carbon equivalent of steel.
The effect of nitrogen on steel performance is similar to that of carbon and phosphorus. With the increase of A572 grade 50 ms steel coil nitrogen content, the strength of steel can be improved, plasticity especially toughness can be significantly reduced, weldability becomes worse, and cold brittleness is intensified. Nitrogen with aluminum, niobium, vanadium and other elements can reduce its adverse effects, improve the performance of A572 grade 50 ms steel coil steel, can be used as an alloying element of low alloy steel.
Advanced typical figures and typical deeds are the embodiment and symbol of A572 grade 50 ms steel coil enterprise spirit, outstanding ideas and vivid images, with strong demonstration, radiation and transmission effect. Without distinctive typical characters, there is no unique enterprise culture. In carrying out the construction of enterprise culture, the advanced enterprise culture should be typified. Vigorously excavate, discover, cultivate and summarize the company's A572 grade 50 ms steel coil advanced models.
In recent years, after the completion of large-scale, high-speed and automation of steel rolling technology and equipment in the world, the rapid development of A572 grade 50 ms steel coil high-precision rolling technology with the goal of improving product quality, expanding varieties, saving energy and reducing consumption, and increasing benefits. For example, in 2013, Bebon Iron and Steel's 4300 mm rolling mill, 5000 mm rolling mill and 3500 mm furnace coil rolling mill introduced foreign technology to further upgrade the company's A572 grade 50 ms steel coil technical equipment.
