yes you will get mostly all the IITs as per the last year trend most of the IITs gives the call to general category student at this marks and as you mentioned you belong to SC  category you will definitely get the call from ALl IIts and ALL NITs

here i mentioned general cutoff

IIT bombay-510

IIT delhi-650

IIT kanpur-773

IIT madras-750

IIt bHU-525

IIT hydrabad-730

IIT gandhinagar-640

Mostly there are more then 50 marks gap between general and Sc category