It isnt scrap at all! It can be repaired or used as is, it's up to you!
99% of RS Turbo heads will be like this according to Ollie from NMS, and 99% of the time they will be perfectly fine to use, if it was fine before you took it off then there is a good chance it will continue to be fine.
Unfortunately the heads are 20+ years old, and so the metal is old, fatigued, and brittle
The head they suppplied me has at least one crack as above and that head cost me £700!!

But... in an ideal world it would be better to have one without any of course!