Silgrain® HQ

Silgrain® HQ is a high purity silicon powder with an iron content less than 0.05%. Our Silgrain® HQ quality is produced by performing an additional purification step after our unique Silgrain® process.


Silgrain® HQ is a silicon powder with low content of impurities. 


The main applications for Silgrain® HQ are as raw material in the production of fillers for epoxy in electronics, as alloying element in aluminium and as raw material in the ceramic industry. Silgrain® HQ is especially used in areas where high purity is needed. 


The typical size of Silgrain® HQ is 0.2-0.8 mm. Our Silgrain® HQ 0.2-0.8 mm has a very low content of fines. Particle size distributions can be supplied upon request. 


Silgrain® HQ can be delivered in 1000 kg big bags. Other non-standard packaging on request.                         

Health, Safety and Environment

Not classified as hazardous material in accordance with GHS and CLP. Please refer to the corresponding Elkem Product Safety Information No. 302 for further details.
Chemical Analysis
Si wt%     99.8
Fe wt% 0.05 0.02 0.04
Al wt% 0.12 0.07 0.09
Ca wt% 0.02 0.005 0.013
Ti wt% 0.005 0.001 0.001
P ppmw 35   25
B ppmw 35   30

Other trace elements on request
Typical size 0.2-0.8 mm