If you're not talking about compounds/"rouges" that are used with wheels/buffs, and stuff, to polish metal...
Then you'll find that most metal polishes such as:
Meguiar's, Mother's, Wenol, Simichrome, Flitz, Collinite's #850, etc. will probably contain the following materials as abrasives:
Aluminum Oxide...CAS# 1344-28-1
(A few synonyms: Solid polishing powder; polishing material aluminum earth)
Some may have this abrasive:
Silica...CAS# 68855-54-9
(A synonym: Flux calcined diatomaceous earth)
-Of course there will be solvents in metal polishes like:
White-spirits; kerosene; and/or other petroleum distillates and/or their synonyms.
-Some will have trace amounts of other ingredients (such as:morpholine; glycerol)
The MSDS's will/should provide this information.
-Some manufacturers will say/list the abrasiveness by grit size (320/600/1200/etc)....But:
Just as in appraising the abrasiveness of the abrasives found in paint-work polishes:
Looking on the MSDS for the % by weight/volume of these abrasives found in each
metal polish product will give an overview of their abrasiveness.
Remember: The "applicators" used with a metal polish will somewhat add to the abrasiveness scale.
-Not an exact scientific-abrasiveness-scale, per se...
But perhaps I can list specific metal polishes, and the %/type of abrasives they contain
at a future date...if you think that would help.
Bob