The construction machinery steel demand rises in China

Since 2020, facing the pressure of the new crown epidemic on economic growth, the government has actively expanded effective investment, strengthened investment in traditional infrastructure and new infrastructure, expanded investment in strategic emerging industries, and accelerated the resumption of work and production in major domestic industries, especially the construction machinery industry closely related to infrastructure projects. With the implementation of the "double cycle" strategy, the construction machinery industry has achieved remarkable results. The construction machinery industry will again usher in a broad development space, and will accelerate the rise of construction machinery steel demand.

Construction machinery refers to equipment used for mining and various engineering constructions, such as drilling rigs, electric shovel, electric wheel dump trucks, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment. With the development of construction machinery, the strength level of construction machinery steel used is getting higher and higher, and the construction machinery steel used is developing towards high strength and high toughness.

At present, high-strength construction machinery steel of 600, 700, 800, 1000 MPa has been developed, Among them, 600MPa grade construction machinery steel is mainly used to manufacture large cranes, bulldozers, scraper conveyors, hydraulic supports, etc.; 700MPa grade construction machinery steel is mainly used for crane booms, large excavators, large hydraulic supports, etc.; 800MPa grade construction machinery steel is mainly used for bulldozers, construction cranes, heavy vehicles and roller drills, etc.; construction machinery steel of 1000MPa is mainly used for hydraulic supports in coal mines and wear-resistant parts of construction machinery.