Low-alloy abrasion-proof and corrosion resistant steel and method for producing the same
A low-alloy, corrosion-resistant steel technology, applied in the direction of manufacturing tools, furnace types, furnaces, etc., can solve problems such as welding repair difficulties, insufficient comprehensive performance of wear resistance and corrosion resistance, insufficient strength and toughness, etc., to achieve good corrosion resistance and wear performance, The effect of superior corrosion resistance
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Embodiment 1
[0024] A low-alloy wear-resistant and corrosion-resistant steel, the microstructure of the steel is carbide-free bainite, and the chemical composition of the steel is:
[0025] C: 0.12%; Si: 1.2%; Mn: 0.8%; Cr: 1.0%; Mo: 0.3%; Ni: 0.4%; Al: 0.6%; rare earth: 0.02%; Nb: 0.08%;
[0026] The method for preparing the above-mentioned low-alloy wear-resistant and corrosion-resistant steel comprises the following steps:
[0027] a. Electric furnace smelting: Use a high-power electric arc furnace to melt the furnace charge. When the carbon steel new material is smelted to 20%, add ferromolybdenum, nickel plate, ferro-niobium and low-carbon chromium. When the smelting reaches 80%, add part of the aluminum material. After it is completely melted, Sampling and analysis were made to make up the amount of aluminum, and ferromanganese (1620°C), ferrosilicon (1630°C), and rare earth ferrosilicon (1650°C) were added in sequence, respectively covered with slag removal covering agent, and slag ...
Embodiment 2
[0032] A low-alloy wear-resistant and corrosion-resistant steel, the microstructure of the steel is carbide-free bainite, and the chemical composition of the steel is:
[0033] C0.16%; Si1.6%; Mn0.8%; Cr1.6%; Mo0.4%; Ni0.4%; Al0.6%; rare earth 0.05%; Nb0.04%; the balance is Fe.
[0034] The method for preparing the above-mentioned low-alloy wear-resistant and corrosion-resistant steel comprises the following steps:
[0035] a. Electric furnace smelting: Use a high-power electric arc furnace to melt the furnace charge. When the carbon steel new material is smelted to 20%, add ferromolybdenum, nickel plate, ferro-niobium and low-carbon chromium. When the smelting reaches 80%, add part of the aluminum material. After it is completely melted, Sampling and analysis were made to make up the amount of aluminum, and ferromanganese (1620°C), ferrosilicon (1630°C), and rare earth ferrosilicon (1650°C) were added in sequence, respectively covered with slag removal covering agent, and slag ...
Embodiment 3
[0040] A low-alloy wear-resistant and corrosion-resistant steel, the microstructure of the steel is carbide-free bainite, and the chemical composition of the steel is:
[0041] C 0.15%; Si 1.6%; Mn 1.0%; Cr 1.0%; Mo 0.4%; Ni 0.3%; Al 1.0%; rare earth: 0.03%; Nb: 0.05%;
[0042] The method for preparing the above-mentioned low-alloy wear-resistant and corrosion-resistant steel comprises the following steps:
[0043] a. Electric furnace smelting: Use a high-power electric arc furnace to melt the furnace charge. When the carbon steel new material is smelted to 20%, add ferromolybdenum, nickel plate, ferro-niobium and low-carbon chromium. When the smelting reaches 80%, add part of the aluminum material. After it is completely melted, Sampling and analysis were made to make up the amount of aluminum, and ferromanganese (1620°C), ferrosilicon (1630°C), and rare earth ferrosilicon (1650°C) were added in sequence, respectively covered with slag removal covering agent, and slag was rem...
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