Well, for a rate one turn (180 degrees per minute) the required bank angle is, approximately, (airspeed/10)+7.
For exapmle at 120 knots, the angle of bank for a rate on turn is 19 degrees.
As for radius etc. that would mean a quick revisiting of the ATPL notes.
If you have an Excel spreadsheet, paste in this:
=ROUND(PRODUCT(E3,E3)/(11.26*TAN(E4*PI()/180)),0)
Cell E3 is the TAS
Cell E4 is the bank angle
gives the radius in feet.
There are several threads about this.
HERE
and
HERE TOO