- Greater resistance with moderate hardness
- High thermal diffusivity
- No carbides
- Fit for serial industrial manufacturing
Although silicon is a widely used element in the manufacturing of gray cast iron (lamellar graphite casting) due to its graphitizing capacity, the increase of silicon content decreases the hardness and tensile strength of the material.
The new Gray Cast Iron material developed by AZTERLAN, in which silicon is replaced by aluminum, offers a notable improvement in the mechanical properties of the material, favoring the industrial manufacture of more advanced components (such as brake discs), without the need to introduce any other modifications in the casting process.
- Replacement of Si by Al as a graphitizing element in the fusion, without changing any other aspects of the manufacturing process.
- High resistance (Rm = +400 Mpa) with moderate hardness (HB = 240-260).
- Good thermal diffusivity at high temperatures.
- No carbides.
- Very good mechanical properties in thin walls.
- In thick walls, the increase of thickness does not imply a drastic decrease of mechanical properties.
