Recently, the project “Development of 23MnB Track Steel for Construction Machinery†undertaken by the Materials of Panzhihua Iron and Steel Research Institute passed the technical appraisal meeting held in Chengdu by the Sichuan Provincial Science and Technology Department and the Sichuan Provincial Economic Commission.
23MnB crawler steel for construction machinery is the first steel grade developed by Panzhihua Iron and Steel Co., Ltd., which is delivered with hardenability index. Due to the characteristics of converter steelmaking, the steel grade is quite difficult in terms of hardenability guarantee. At the same time, due to the track steel It is very difficult to develop a heterogeneous refractory variety with an asymmetric cross section. Through research in recent years, the research team has opened up the key technologies of refining deoxidation of 23MnB crawler steel, alloying of boron, application of trace Cr, and thin 216 pitch track-type rail beam rolling process, forming a scale production. ability. After listening to the project technical research report and reviewing the relevant technical materials, the appraisal committee formed the appraisal opinion that “the adopted process technology is at the domestic leading levelâ€.
At the same time, Pangang's track steel products have been deep-processed by Pangang Iron and Steel Construction Co., Ltd. to form ancillary service capabilities, and product value and market competitiveness have been greatly improved. During the trial production period, the cumulative production of qualified thin 216 track shoes was more than 12,000 tons, and the users responded well. At present, Pangang's track steel products have been exported to South Korea, Indonesia, India and other countries, creating significant economic and social benefits.
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