Blogue

I. Revealing the Metallic Properties of Silicon Steel

Aço ao silício undoubtedly belongs to the family of metallic materials. Essentially, it is an alloy of iron and silicon. Similar to how coffee with milk remains a beverage, iron alloyed with 1%–3% silicon still retains typical metallic characteristics including electrical conductivity and ductility. This silver-grey material displays a distinctive metallic luster under sunlight and produces a clear metallic ringing sound when tapped—both direct evidence of its metallic nature.

II. Unique Advantages of Silicon Steel

Compared with conventional steel, aço ao silício possesses two core superior properties:

1. Optimized magnetic performance: The addition of silicon boosts the material’s magnetic permeability by approximately 40%, greatly improving energy conversion efficiency.
2. Controlled eddy current loss: When silicon content reaches 3%, eddy current loss can be cut by 60% relative to ordinary carbon steel.

These traits make it the premier material for manufacturing transformer cores.

III. Unsung Core Material Widely Used in Industry

Aço ao silício acts as an “energy transporter” inside power equipment:

• Around 2 tons of silicon steel sheets are consumed for each medium-sized transformer.
• Silicon steel accounts for 35% of the raw materials in electric vehicle drive motors.
• Wind power generators require 4 to 5 tons of silicon steel per megawatt of installed capacity.

All these applications rely on the excellent machinability and stability provided by its metallic iron matrix.