To remove sanding scratches from stainless, start out using a sisal buffing wheel with the Super Sisal Compound #F515-6154. You can then work your way up to a spiral sewn cotton buff using the All Purpose Stainless Compound, F-515-6147.
For a final high luster finish, use a loose cotton buffing wheel or canton flannel buff with the F515-6113 White Lightning Rouge.
See
http://www.caswellplating.com/buffs/compound4.html