According to the latest statistics of alacero, the consumption of finished steel A709 Gr 100 bridge steel plate products in Latin America in 2019 was 64.2 million tons, down 5% from 67.6 million tons in 2018. The decline in steel consumption in the region reflects the economic contraction of Latin American countries, especially the three major economies: Mexico, Argentina and Brazil. The three countries accounted for 87% of the total reduction in A709 Gr 100 bridge steel plate steel consumption in Latin America. Alacero said the main reasons for the decline in steel consumption in the region are the global economic slowdown, the fall in commodity prices, trade disputes between the United States and its partners, the shrinking world trade A709 Gr 100 bridge steel plate and political uncertainty, as well as the negative impact on Latin American countries and their neighbors in terms of investment.
A709 Gr 100 bridge steel plate, Wear-resistant steel plates are composed of two parts, namely carbon steel plate and alloy wear-resistant layer. Under normal circumstances, the thickness of the alloy wear-resistant layer of the wear-resistant steel plate is 1/3-1/2 of the total thickness. When working, the matrix provides comprehensive properties such as strength, toughness and plasticity against external forces. And the alloy wear-resistant layer provides wear-resistant properties to meet the requirements of specified working conditions.
Composition of low alloy steel plate: Low carbon: due to the high requirements for toughness, weldability and cold formability of low alloy steel plate, the carbon content is not more than 0.20%; manganese is added; the auxiliary elements such as niobium, titanium or vanadium are added; a small amount of niobium, titanium or vanadium forms fine carbide or carbonitride in the steel, which is conducive to obtaining fine ferrite grains and improving the strength and toughness of low alloy steel plate; in addition, The corrosion resistance of A709 Gr 100 bridge steel plate, low alloy steel plate can be improved by adding a small amount of copper (< 0.4%) and phosphorus (about 0.1%).
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