Products Parameters
The Ferro Silicon produced by ZhenAn is considered to be of high quality in the Chinese and international markets.
| Si | Al | C | P | S | |
| FeSi 45 % | 45 % min | 2.00 % max | 0.20 % max | 0.03% max | 0.02 % max |
| FeSi 65 % | 65 % min | 1.50 % max | 0.15 % max | 0.03% max | 0.02 % max |
| FeSi 75 % | 75 % min | 1.50 % max | 0.15 % max | 0.03% max | 0.02 % max |
| FeSi 75 % Low Al | 75 % min | 1.00 % max | 0.05 % max | 0.03% max | 0.02 % max |
| FeSi 75 % High Purity | 75 % min | 0.10 % max | 0.03 % max | 0.03% max | 0.02 % max |
| SIZE | 1-3 mm / 3-10 mm / 10-50 mm / 10-100 mm | ||||
| PACKING | Bulk or 1 mt big-bag | ||||
Supply Ability: 3000 Metric Tons per month
Payment term: T/T OR L/C
Delivery time: Within 7 days after receiving prepayment
Service: We can supply free samples, a booklet, a laboratory test report, an Industry Report, etc.
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Products Description
Ferro Silicon 70 (FeSi 70) is an alloy with silicon and iron as the main components. The silicon content is usually between 68% and 72%, and the rest is iron and a small amount of impurities. As an important raw material in the metallurgical industry, it plays an irreplaceable role in steel production and foundry industry. Its unique chemical and physical properties make it a key material for optimizing metal properties and improving production efficiency.
Ferro Silicon 70 is mainly produced by smelting a mixture of quartz and coke in an electric arc furnace. Under high temperature, silicon dioxide is reduced to silicon and combines with iron to form an alloy. The raw material ratio, furnace temperature and reducing agent dosage must be strictly controlled during the production process to ensure the stability of the silicon content. The control of impurities is particularly important. Excessive aluminum, calcium or carbon content may affect the performance of the alloy in subsequent applications. In addition, increasingly stringent environmental regulations have prompted companies to improve smelting technology, such as using closed electric furnaces or waste heat recovery systems to reduce energy consumption and emissions.
In the steel industry, Ferro Silicon 70 is mainly used as a deoxidizer and alloying additive. During the steelmaking process, the presence of oxygen will increase the brittleness of the steel, and the strong oxygen affinity of silicon can effectively remove free oxygen in the molten steel, improving the toughness and strength of the steel. In addition, silicon can also form silicon carbide with carbon in steel, further improving the material's wear resistance and high temperature resistance. The foundry industry also relies on FeSi 70. In cast iron production, silicon can promote graphitization, so that the cast iron has a more uniform metallographic structure, thereby enhancing its tensile strength and machinability. Different grades of cast iron have different requirements for silicon content, and FeSi 70 has become the preferred material for foundries due to its stable composition.
The growth of global steel production has directly driven the demand for Ferro Silicon 70, especially in emerging industrialized countries. However, the market also faces challenges, such as fluctuations in raw material prices and restrictions on environmental protection policies. In the future, alloy production may develop in a more efficient and cleaner direction, such as developing high-end grades with low impurity content, or exploring the potential use of ferrosilicon in new energy fields (such as battery materials).
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