temperatuurivahemikus 769 °C (Curie punkt) kuni 911 °C raua varemalt eristatud modifikatsioon (vrd α-raud, ϒ-raud), early distinguished non-magnetic modification of alpha-iron, possesses the body-centered cubic lattice that exists in temperature range 768 oC (Curie temperature) to 911 oC (compare: alpha iron, gamma iron)