Abstract：Cold heading cracking of rolled products appeared due to a large number of micro-cracks in slab surface during the development of ML40Cr in Minguang Steelworks of Fujian Sanming Iron and Steel Co. Ltd. The main reason to produce micro-cracks was studied through the analyzing the actual situation of the microcracks and combining production mechanism of micro-cracks, and then the measures were put forward. After practical application, the microcracks in slab surface were effectively controlled and the quality of the billet was improved.
马桂华. ML40Cr表面微裂纹控制[J]. 中国钢铁期刊网, 2014, 33(1): 41-44.
MA Gui-hua. Control of Surface Microcracks in ML40Cr Billet. Chinese Journal of Iron and Steel, 2014, 33(1): 41-44.
2014, Vol. 33 
