Steel grade: 20MnSi, 20MnV, 25MnSi, BS20MnSi. Steel bars mainly bear tensile stress in concrete. Deformed steel bars have great bonding ability with concrete due to the action of ribs, so they can better withstand the action of external forces. Steel bars are widely used in various building structures. Especially for large, heavy and light thin-walled and high-rise building structures.
Extended data:
China's steel consumption has obvious characteristics of developing countries. Steel used in construction and industry accounts for about 90% of the total steel used, of which construction steel accounts for 50%. As China is in the historical stage of rapid urbanization, there is a great demand for construction steel. As the main building steel, rebar consumption has always occupied a large proportion of China's steel output.
Before 2000, the proportion of small profiles (mainly rebar) was around 25%. After 200 1, with the transfer of world manufacturing to China, the proportion of production and sales of plate, pipe and strip increased gradually, while the proportion of construction steel decreased year by year.
From 200 1 to 2007, the consumption of rebar in China increased from 4369 1 10,000 tons (small profile output) to 95510.2 million tons, and the proportion of rebar in steel consumption decreased from 25.8% to10.8%.
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