No, usually Australian universities do not release SAT cutoffs, and some of them may not require them also. Only a handful universities of Australia accept SAT scores from international students for admission. The ones who accept SAT scores, may or may not publish SAT cut-offs or minimum SAT score requirements. Even if some universities do that, they give it for a specific course and not for all courses offered at that level in the university in question. Thus, be careful while checking admission requirements.