What's the specific gravity of ferrosilicon

I. The Nature of Ferro silicon's Specific Gravity
Ferro silicon is an alloy of silicon and iron, and its specific gravity typically fluctuates between 3.5 and 3.8 g/cm³. This value is like the alloy's "body mass index," changing with the silicon content-silicon atoms are lighter than iron atoms, so a higher silicon content actually results in a slightly lower overall specific gravity. Interestingly, liquid ferrosilicon is about 5% lighter than its solid state, a phenomenon similar to the shrinking volume of ice when it melts, a fascinating aspect of physics.

II. The Special Characteristics of 72% Ferro silicon
72% ferrosilicon specifically refers to a type with a silicon content of approximately 72%, and its specific gravity is consistently around 3.5 g/cm³. This alloy acts like a "universal seasoning" in the metallurgical field:

Steelmaking deoxidation: Its moderate specific gravity allows for uniform distribution in molten steel.

Alloy additives: Precise ferro silicon ratios can control the properties of finished steel.

Casting improvement: A suitable specific gravity prevents compositional segregation in castings.

III. Three Major Factors Affecting Specific Gravity
Besides silicon content, these factors cause subtle changes in the "weight" of ferro silicon:

Porosity: A sponge-like porous structure reduces the measured specific gravity.

Impurity type: Impurities such as manganese and chromium increase the specific gravity.

Temperature: For every 100°C increase, the specific gravity decreases by approximately 0.5%.

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