The German capital ships made several forays to attack North Atlantic convoys, some went as far as the South Atlantic and the Indian Ocean from 1939 to 1941 but none of these attempts resulted in many ships sunk compared to what the merchant raiders sank:

Capital Ships

Graf Spee: 50,090 tons
Deutschland: 6,962 tons
Scheer: 99,059 tons
Scharnhorst & Gneisenau: 115,622 tons

Merchant Raiders

Orion: 57,744 tons
Komet: 42,959 tons
Atlantis: 145,697 tons
Widder: 58,645 tons
Thor: 139,336 tons
Pinguin: 136,551 tons
Kormoran: 68,274 tons
Michel: 121,994 tons
Stier: 29,409 tons

Of course the German submarines sank much more shipping than all the surface ships.

Charley Noble