Recently, it was learned from the Jilin Provincial Department of Market Supervision and Administration that the “high quality carbon structural steel hot rolled steel bar of Changbaishan Brand”, produced by Tonggang Company, was recognized as “famous brand product in 2018 in Jilin” by Jilin Famous Brand Promotion Committee.

The award-winning product of Tonggang Company is mainly No. 45 steel, which is mainly used in the automobile parts processing industry and precision machining industry. Its products have stable chemical composition and stable mechanical properties, and have been well received by users.

In the steelmaking link, Tonggang Company carries on the smelting strictly according to standards, and guarantees the chemical composition stability. In particular, the harmful elements S and P are effectively controlled. By continuously optimizing the production process and stabilizing the production rhythm, the quality of the continuous casting billet has been steadily improved, defects such as sub-skin bubbles, internal clamps, central cracks, and intermediate cracks of the billet have all disappeared, and the shrinkage hole and subskin crack level of billet are stable below 1.0. In the steel rolling link, the walking beam furnace, low temperature heating, and rolling are adopted, and the production is carried out by temperature control shearing and slow cooling after rolling, which effectively controls the uniformity of microstructure and the stability of mechanical properties, and ensures the thickness of decarburization layer and the precision of product size are well controlled. Starting with the entry of scrap into the furnace, the steelmaking department ensures that the raw fuel is institutionalized, and the production process control is digitalized, and strives to do well and meet the standards. The steel rolling department further refines the data analysis, searches for problems in a multi-dimensional and deep-seated way, stabilizes product indicators, regulates standard behavior, and carefully and meticulously handles each procedure for Tonggang to create product brands.