Abstract��The unqualification reason of S355 hot rolled plate by ultrasonic inspection had been analyzed by means of macroscopic examination and metallographic examination. The results showed that the segregation��middle cracks and holes between plates in the thickness of 1/4-1/2 exists, making the plate unqualified.
�����ã����㻨��������������. S355�������̽�˲��ϸ��ԭ��[J]. �й������ڿ���, 2013, 31(5): 25-27.
MA Xiao-mei,QIU Xiang-hua,ZHANG Min,XU Qing-lan. Unqualification Reason of Ultrasonic Inspection for S355 Hot Rolled Plate. Chinese Journal of Iron and Steel, 2013, 31(5): 25-27.
2013, Vol. 31 
