According to the latest statistics of alacero, the consumption of finished steel sa283 grc mild steel sheet suppliers 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 sa283 grc mild steel sheet suppliers 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 sa283 grc mild steel sheet suppliers and political uncertainty, as well as the negative impact on Latin American countries and their neighbors in terms of investment.
The microstructure of the quenched and tempered alloy steel, sa283 grc mild steel sheet suppliers after conventional heat treatment is tempered sorbite. For parts with wear-resistant surface (such as gears and spindles), induction heating surface quenching and low-temperature tempering are carried out, and the surface structure is tempered martensite. The surface hardness can reach 55HRC-58HRC. After quenching and tempering, the yield strength of quenched and tempered alloy steel is about 800MPa, the impact toughness is 800kJ / m2, and the core hardness is 22HRC - 25HRC. If the cross-section size is large but not quenched, the properties will be significantly reduced.
A514 gr.B steel coil chemical composition (melting analysis)%C: 0.12-0.21, Si: 0.20-0.35, Mn: 0.70-1.00, P max.: 0.035, S max.: 0.035, B max.: 0.005, Cr: 0.40-0.65, Mo: 0.15-0.25, V: 0.03-0.08, Ti: 0.01-0.03The mechanical properties in thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥,%: 18
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