Can the outbreak of the hottest tram bring more st

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Can the outbreak of trams bring more "steel demand"

trams have experienced a hundred years of development and have been gradually applied and expanded in the rapid development of China's rail transit. Modern steel wheel and rail low floor trams have played an important role in solving the transfer in urban core areas, suburban connections, scenic spots and tourism with their energy conservation, environmental protection, small investment, moderate passenger capacity, better riding comfort, and less late maintenance costs, More and more cities have begun to increase the development of trams. Can the outbreak of trams bring more "steel demand"

by the end of 2017, China had opened and operated 20 tram lines in 14 cities, including Dalian, Tianjin, Shanghai, Shenyang, Changchun, Suzhou, Nanjing, Guangzhou, Huai'an, Qingdao, Zhuhai, Wuhan, Shenzhen and Beijing, with an operating mileage of 232.7 kilometers and 340 stations. Among them, five new trial operation lines were opened in 2017, with an operation mileage of 55.23 kilometers and a growth rate of 31%. In 2017, as a typical representative of high molecular materials, the domestic tram lines generally show an increasing trend. At the same time, the scale of tram under construction is also very large

as of the end of 2017, 22 cities in China have been intensively engaged in the construction of trams, with a total of 38 lines and a total mileage of 585.56 kilometers (see Figure 1 for details). Including Beijing (2), Shanghai (2), Shenyang (2), Foshan (2), Suzhou (3), Wuhan (2), Chengdu (4), Sanya (1), Tianshui (1), Qiannan prefecture (1), Delingha (1), Luzhou (1), Mengzi (4), Maitreya (1), Nanping (1), Taizhou (2), Dongguan (1), Anshun (2), Ruili (2), Wenshan (1) Guangzhou (1), Changzhou (1). It can be seen that the scale of tram lines under construction is growing rapidly, indicating that China's tram is gradually changing from demonstration line construction to networking construction. Some cities began to take the network operation as the planning and design goal, and paid attention to the network construction of trams

Figure 1 the scale of tram lines under construction in China

the planning of modern tram lines in China is very large. According to incomplete statistics, a total of 91 cities have proposed the intention of building modern tram lines or planning modern tram lines. There are about 565 lines, with a planned mileage of 10378 kilometers, and the development momentum is rapid. The steel used for trams mainly includes steel for line laying, steel for vehicles, and steel for infrastructure construction such as stations. The key is the special groove steel rail for trams. This kind of steel rail is known as the "king of the rail" because of its special structure, complex section, high technical content and great rolling difficulty. In 2017, domestic steel mills were actively researching and developing, and Panzhihua Iron and Steel Co., Ltd., Baotou Iron and Steel Co., Ltd. and Anshan Iron and Steel Co., Ltd. were all entering the market of special groove rail for trams

the diversified functional positioning of trams has led to the continuous expansion of the domestic planning and construction scale. In mega and large cities, the tram is used as a supplementary line for encryption or as the backbone of the new area. The planning scale is large, and it can also be used as the backbone public transportation mode of small and medium-sized cities, which makes the necking phenomenon of small and medium-sized cities appear one by one, and has become a new force in the construction of tram. The construction of tram has also gradually entered the era of network construction from the initial single line and demonstration line to now. With the rapid development of tram transportation, its "steel demand" will continue to grow

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