I can see why you asked here as producers like to use their own trade names for alloys meeting this specification.
This document gives four examples of trade names meeting F75... http://www2.coromant.sandvik.com/coromant/pdf/Medical/ENG/HRSA_51_59.pdf
If you are looking for a small quantity of as-cast ingot a toll melter like this one might be a better choice than a firm more interested in selling larger quantities of finished components... http://www.davisalloys.com/