Ultrasonic flaw detection emits ultrasonic waves to the A709 grade 50W high strength steel steel plate under inspection. If there are defects in the steel plate, the ultrasonic waves will reflect, refract or deform waveforms due to the defects. By recording these changes, the type and shape of the defects are analyzed. Due to its high energy and good penetration performance, and the smoothness of the A709 grade 50W high strength steel steel plate itself, ultrasound is often used to detect defects such as inclusions, shrinkage holes, bubbles, and cracks in the steel plate.
Advantages of A709 grade 50W high strength steel: 1. Steel purity: Wugang can produce high purity molten steel with P 0.010%, S 0.005%, N70ppm, O15ppm, H2ppm, and 20ppm total inclusions in the steel. 2. Good toughness and weldability. 3. The heat treatment technology: normalizing, quenching, tempering, tempering and other heat treatment processing can be carried out on the steel plate as required. 4. Significantly improve the plasticity and impact toughness of steel, and improve the anisotropy of steel.
At present, the inventory of A709 grade 50W high strength steel in some markets is still at a low level, the rhythm of late arrival can be controlled, and the inventory pressure of agents is small; secondly, the orders of steel mills are basically saturated, the ex factory price is obvious, and the short-term A709 grade 50W high strength steel price support is strong. On the whole, the cost side is high, the inventory pressure is not big, and A709 grade 50W high strength steel traders are cautious and optimistic. Although the short-term demand persistence still needs to be considered, the overall price bottom is supported. It is expected that China's A709 grade 50W high strength steel prices will fluctuate at a high level tomorrow.
Heat treatment is a very important process to improve the performance of A709 grade 50W high strength steel etc. metal materials. The process of heating, heat preservation and cooling the steel in solid state to obtain the required structure and properties.
