Assertion: ductile iron | /r/CapableOf | solidify at 1,538 °c
Facets:
value: into its δ allotrope
type: OTHER
Source sentences:
text: As molten iron cools down, it solidifies at 1,538 °C (2,800 °F) into its δ allotrope, which has a body-centered cubic (BCC) crystal structure.