Ferro Silicon

Silicon is present in most steels up to around 0.35% for the deoxidation process. However, higher additions between 1% and 2% are used in production of spring steels. Transformer cores also utilise higher levels of silicon in conjunction with low carbon levels to provide specific hysterises properties.

As the UK distributor for FESIL, a full range of sizes and grades is offered. These are based on 75% Silicon content and include standard as well as high purity specifications which have Aluminium levels at 0.1% max.


Ferro Silicon 75% Standard Grade SiAlPSMn
74-77% 1.5% max 0.03% max 0.02% max 0.4% max

Size: 3-10mm or 10-50mm or 20-80mm


Ferro Silicon 75% Low Al Grade SiAlCPSiMn
74-77% 0.1% max 0.15% max 0.03% max 0.02% max 0.2% max

Size: 10-40mm


Low Carbon Granules SiAlMnTi
74-77% 1.5% max 0.5% max 0.2% max
0.06% max 0.03% max 0.02% max 0.01% max

Size 1-6mm 3-25mm


High Purity SiAlMnCaTi
74-77% 0.02% max 0.25% 0.4% max 0.015% max
0.013% max 0.015% max 0.002% max 0.04% max  

Size: 10-50mm 


Other sizes and specifications are available on request. Please contact us at info@tenmet.co.uk