Research and development background of SA542TypeDCL4a steel plate

As the usage conditions become more and more severe, the SA387Gr22CL2 steel can no longer meet the requirements for the use of some devices. The improved SA542TypeDCL4a with V added is a newly developed high temperature and high pressure reactor material in the world. Compared with SA387Gr22CL2 steel, its strength, hydrogen resistance, temper embrittlement resistance, and hydrogen-induced peeling resistance are significantly improved.

The order quantity of SA542TypeDCL4a steel plate is gradually increasing, and its performance and quality requirements are also gradually increasing. In order to meet the user's requirements for the performance and quality of SA542TypeDCL4a steel plate, it is urgent to develop low-phosphorus SA542TypeDCL4a steel plate with excellent performance. SA542TypeDCL4a steel plate product standard refers to ASME; product testing method standard refers to SA-370; steel plate die welding standard refers to API934; steel plate flaw detection standard refers to NB/T47013.3.