C45 steel is a medium carbon high quality steel with high strength. Chemical composition of C45 steel: C: 0.42 - 0.50, Si: ≤ 0.40, Mn: 0.50 - 0.80, S: ≤ 0.045, P: ≤ 0.045, Cr: ≤ 0.40, Ni: ≤ 0.40, Mo: ≤0.10. A572 Grade 65 chemical composition, C45 steel is widely used in aerospace, electric power, petrochemical, shipbuilding, machinery, electronics, environmental protection and other industries.
In 2019, the output of pig iron in the world was 1.265 billion tons, with China accounting for 64%; the overseas output accounted for 36% (460 million tons), ranking 86.982 million tons of EU 28 countries, 74.907 million tons of Japan, 74.099 million tons of India, 73.264 million tons of CIS, and A572 Grade 65 chemical composition 47.521 million tons of South Korea.
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The steel plate and strip after hot rolling treatment are generally called hot rolled plate. Compared with other steel plate processing industries, A572 Grade 65 chemical composition, hot rolled plate has these characteristics. First, low hardness, easy processing. Compared with other steel needs special mechanical equipment, hot rolled plate is a very convenient for processing. Second, good ductility, not easy to break, good compression capacity, long service life. Third, the manufacturing process is simple, and the price and cost are relatively cheap compared with other steels.