fg260 at minus 40 degree centigrade

[ssbarekar]

can we used FG 260 at minus 40 degree centigrade for casting of stator case where no lode in running but may have load at start.
lot's of motor with stator case of FG260 are working at low temprature
from where can i get refrence that FG 260 can work at minus 40 degree centigrade
any book or any standard
and can i get the impact value of Fg 260 at amb 30 degree and at amb minus 40 degree.
thaks