Brian; I looked up that material in the AWS D1.1 2002. A514 grade E the grade E wasn't there, but Annex M. did give some info on A 514. It stated .750" - 1.500" should be preheated to a temp. of 125° F, but not to excede 400° F (ie. Max pre-heat and Max. interpass temp.) Hope this helps.)

Rick