Products Parameters
| Grade | Chemical Composition (%) | ||||||||
| Zr | Si | Al | C | S | P | Mn | Ca | Fe | |
| FeSiZr10 | ≥10 | 45-60 | ≤1.5 | ≤0.5 | ≤0.02 | ≤0.5 | ≤0.2 | ≤1.0 | Balance |
| FeSiZr15 | ≥15 | 45-60 | ≤1.5 | ≤0.5 | ≤0.02 | ≤0.5 | ≤0.2 | ≤1.0 | Balance |
| FeSiZr18 | ≥18 | 45-60 | ≤1.5 | ≤0.5 | ≤0.02 | ≤0.5 | ≤0.2 | ≤1.0 | Balance |
| FeSiZr20 | ≥20 | 45-60 | ≤1.5 | ≤0.5 | ≤0.02 | ≤0.5 | ≤0.2 | ≤1.0 | Balance |
| FeSiZr25 | ≥25 | 45-60 | ≤1.5 | ≤0.5 | ≤0.02 | ≤0.5 | ≤0.2 | ≤1.0 | Balance |
| FeSiZr30 | ≥30 | 45-60 | ≤1.5 | ≤0.5 | ≤0.02 | ≤0.5 | ≤0.2 | ≤1.0 | Balance |
| FeSiZr35 | ≥35 | 45-60 | ≤1.5 | ≤0.5 | ≤0.02 | ≤0.5 | ≤0.2 | ≤1.0 | Balance |
Size: 0.1-0.5mm;0.2-0.8mm;0.8-4mm;2-6mm;3-10mm
Packing: 25kg woven plastic bag in 1mt big bag;1mt jumbo bag;250kg steel drum
Products Description
Silicon Zirconium is an important metallurgical additive, widely used in the field of steel and non-ferrous metal smelting. Its core value lies in significantly improving the mechanical properties, corrosion resistance and high temperature stability of metal materials through the synergistic effect of silicon and zirconium.
Silicon-zirconium alloys are usually composed of 60-70% silicon, 20-30% zirconium and a small amount of impurities such as iron and aluminum. Zirconium, as an active element, has a strong affinity with oxygen and nitrogen, and can effectively remove harmful gases from molten steel during the smelting process and reduce pore defects. The addition of silicon can lower the melting point of the alloy, improve fluidity, and promote the graphitization process in cast iron. The combination of the two makes the alloy have multiple functions of deoxidation, denitrification and grain refinement. In aluminum alloy smelting, trace amounts of zirconium (0.1-0.3%) can form a stable ZrAl3 phase, inhibit recrystallization, and improve the high-temperature strength of the material.
Silicon-zirconium alloy is often used to produce high-strength low-alloy steel (HSLA). Its deoxidation efficiency is better than that of traditional ferrosilicon, and zirconium can form high-melting-point compounds with sulfur to reduce hot brittleness. Adding 0.05-0.1% zirconium to stainless steel can enhance the resistance to intergranular corrosion. When used in the production of ductile iron, zirconium can promote the formation of spheroidal graphite and improve the ductility and fatigue resistance of castings. In aluminum alloys, silicon-zirconium alloy can replace part of the titanium-boron agent, refine the grains and improve the conductivity, and is especially suitable for wires and aerospace components.
The main advantage of silicon-zirconium alloy lies in its composite effect: a single additive can achieve multiple goals of deoxidation, grain control and alloying, reducing overall costs. However, the high activity of zirconium also brings high requirements for storage and use (moisture-proof and air-isolated), and excessive addition may cause the viscosity of molten steel to increase. At present, some companies are trying to optimize its dissolution efficiency through pre-alloying process. The unique properties of silicon-zirconium alloy make it occupy an irreplaceable position in modern metallurgy. With the growth of demand for clean steel and high-performance aluminum alloys, its application range is expected to expand further, but cost control and process adaptation are still directions that need to be continuously optimized. With the development of the times in the future, I believe that the application of silicon zirconium will become more and more extensive.
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