Assertion: alloy's element | /r/HasProperty | silicon
Facets:
Source sentences:
text: The principal alloying elements for steel are chromium, nickel, manganese, molybdenum, silicon, tungsten, vanadium, and boron.
text: Two stabilizing elements were considered, silicon and aluminium.
text: Although other elements may be present in smaller amounts, the alloying element of concern in aluminum for pistons is silicon.