High-strength steel plate material used for automobile loading part

Abstract

The invention discloses a high-strength steel plate material used for an automobile loading part. Elements of the high-strength steel plate material include, by weight percent, 0.6%-0.8% of carbon, 0.9%-1.3% of silicon, 0.2%-0.4% of nickel, 2.4%-3.5% of manganese, 0.06%-0.08% of iridium, 0.1%-0.2% of aluminum, 0.04%-0.05% of zirconium, 0.2%-0.3% of copper, 0.6%-1.2% of magnesium, smaller than or equal to 0.015% of sulfur, smaller than or equal to 0.015% of phosphorus and the balance iron and inevitable impurities. By means of the high-strength steel plate material used for the automobile loading part, the casting quality of a casting is good, the yield is high, the casting cost is low, the shock-resistance bearing capability is good, and the high-strength steel plate material is high in safety when used as the automobile loading part and is worthy of being popularized.

Description

technical field [0001] The invention relates to the technical field of automobile parts, in particular to a high-strength steel plate material for automobile load parts. Background technique [0002] Iron and steel materials occupy an important position in the mechanical engineering manufacturing industry due to their high strength and good toughness. In recent years, mechanical engineering structures have increasingly developed in the direction of giantization and high parameters, and higher and higher requirements have been put forward for the performance of steel materials. , the addition of particles to strengthen steel materials has many advantages, but it is often at the expense of reducing plasticity and toughness on the premise of increasing strength and hardness. In the article "Preparation Technology and Application of Nano-NbC / Fe(Fe3C) Composite Powder for Iron-Based Materials Strengthened by Adding Particles", Qin Sen chose NbC as the strengthening phase particle...

AI Technical Summary

Problems solved by technology

Although he provided a kind of niobium carbide composite powder with a density value close to molten steel and a kind of niobium carbide composite powder with good dispersion in molten steel, the problems of dispersibility and density value in the steelmaking process cannot be solved at the same time, which limits the steel industry. Large-scale development, and aluminum powder is prone to oxidation, and the quality stability is not high when preparing aluminum-doped niobium carbide