Ferro alloy
FeSi Ferro Silicon Metal for Steelmaking
Ferrosilicon 75 is an alloy made up of iron and silicon with a silicon content of approximately 75%. It is typically produced through a reduction process involving high-temperature fusion of quartz...
DESCRIPTION
Ferrosilicon 75 is an alloy made up of iron and silicon with a silicon content of approximately 75%. It is typically produced through a reduction process involving high-temperature fusion of quartz (silica) with carbon in an electric arc furnace. The resulting alloy is then cooled and crushed into lumps or other sizes for further use.
Ferrosilicon 75 lumps are irregularly-shaped pieces of the alloy, usually ranging in size from 10mm to 100mm. They are dark gray in color and have a metallic luster. These lumps are often used in the steel industry as a deoxidizer and alloying agent to improve the mechanical properties of steel, such as strength and hardness. Additionally, they can also be used as a reducing agent in certain chemical reactions.
Ferrosilicon 75 lumps have a relatively high density and are not very reactive with other elements, making them a stable and reliable additive for steelmaking. However, they can be sensitive to moisture and should be stored in a dry environment to prevent oxidation and degradation.
| Grade | Si | Fe | C | Al | S | P | Ca |
|---|---|---|---|---|---|---|---|
| 75% | 72-80% | 18-22% | 0.1% max | 1.5% max | 0.02% max | 0.04% max | 1.5% max |
| 72% | 70-75% | 23-28% | 0.2% max | 2.0% max | 0.02% max | 0.04% max | 1.5% max |
| 65% | 65-72% | 28-35% | 0.2% max | 2.5% max | 0.02% max | 0.04% max | 1.5% max |
| 45% | 40-47% | 50-57% | 0.2% max | 3.0% max | 0.02% max | 0.04% max | 1.5% max |
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