sa573 gr.65 structural quality carbon steel property of yield strength

A709Gr.36 steel plate is used in construction steel structures, construction machinery and other steel structures, and has been exported to South Korea, Singapore, Malaysia, Dubai, Nigeria and other countries. The sa573 gr.65 structural quality carbon steel) cumulative export volume has reached more than 10,000 tons. Construction steel structure, construction machinery, mining and mountain machinery, trucks, bridges, pressure vessels, especially for construction and engineering machinery parts that require good weldability and toughness.

sa573 gr.65 structural quality carbon steel, Q345B low alloy steel plate composition:
1) Low carbon: Due to the high requirements for toughness, weldability and cold forming properties, its carbon content does not exceed 0.20%;
2) Add manganese-based alloying elements;
3) Adding auxiliary elements such as niobium, titanium or vanadium: a small amount of niobium, titanium or vanadium forms fine carbides or carbonitrides in the Q345B steel, which is conducive to obtaining fine ferrite grains and improving the strength and toughness of the steel;
In addition, adding a small amount of copper (≤0.4%) and phosphorus (about 0.1%) can improve the corrosion resistance. Adding a small amount of rare earth elements can desulfurize and degas, purify steel, improve toughness and process performance.

Punchability refers to the performance of metal without cracks and other defects after stamping deformation. Many steel products are manufactured through a stamping process. In order to ensure the quality of the products and the smooth progress of the process, the sa573 gr.65 structural quality carbon steel, steel plates and strips used for stamping must have qualified stamping performance.

Our company will accept the product quality objection registration record, pass it to the sa573 gr.65 structural quality carbon steel production unit and relevant departments, and timely coordinate the supervision of product sa573 gr.65 structural quality carbon steel quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.