Starting in 1970, 11 vessels of this class were upgraded to Type 331 s. Beginning 1979, the six remaining vessels of this class were upgraded to Type 351 Ulm class. They were replaced by the Type 352 s.
All six Type 351s were sold to the South African Navy in 2001. The remaining five ships were sold by the South African Navy to a private owner in 2009 for conversion into pleasure vessels.
| Pennant number | Name | Service | Upgrade | Notes | |
|---|---|---|---|---|---|
| M1072 | Lindau | 1 February 1958 - 1975 | Type 331 | To Estonian Navy 2000. Renamed . | |
| M1070 | Göttingen | 1 April 1957 - 1976 | Type 331 | To Latvian Navy 2000. Used as spares hulk. | |
| M1071 | Koblenz | 6 May 1957 - 1975 | Type 331 | To Lithuanian Navy 1999. Renamed . | |
| M1075 | Wetzlar | 24 June 1957 - 1976 | Type 331 | ||
| M1074 | Tübingen | 12 August 1957 - 1975 | Type 331 | converted to private yacht,Gibraltar flag, retains most of original appearance including navy grey paint (except white top on funnel) | |
| M1073 | Schleswig | 2 October 1957 - 1979 | Type 351 | To South African Navy 2001. Renamed SAS Tshwane | |
| M1076 | Paderborn | 4 February 1957 - 1979 | Type 351 | To South African Navy 2001. Renamed SAS Mangaung | |
| M1077 | Weilheim | 5 December 1958 - 1976 | Type 331 | On display at the Deutsches Marine Museum, Wilhelmshaven | |
| M1078 | Cuxhaven | 11 March 1958 - 1976 | Type 331 | To Estonian Navy 2000. Renamed | |
| M1079 | Düren | 12 June 1958 - 1979 | Type 351 | To South African Navy 2001. Renamed SAS Kapa | |
| M1080 | Marburg | 4 August 1958 - 1976 | Type 331 | To Lithuanian Navy 2000. Renamed . | |
| M1081 | Konstanz | 30 August 1958 - 1980 | Type 351 | To South African Navy 2001. Used as spares hulk. Expended as target by two Exocet MM40 missiles from SA Navy frigates and during Exercise Red Lion on 1 November 2007 about 90km (60miles) west of Saldanha Bay, South Africa. | |
| M1082 | Wolfsburg | 10 December 1958 - 1979 | Type 351 | To South African Navy 2001. Renamed SAS Tekwini | |
| M1083 | Ulm | 10 February 1959 - 1978 | Type 351 | To South African Navy 2001. Used as spares hulk. | |
| M1084 | Flensburg | 7 April 1959 - 1970 | Type 331 | Museum ship | |
| M1085 | Minden | 9 June 1959 - 1975 | Type 331 | To Coast Guard of Georgia 1998. Renamed Ayety (აეტი) | |
| M1086 | Fulda | 19 August 1959 - | Type 331 | ||
| M1087 | Völkingen | 20 October 1959 - 1976 | Type 331 | To Latvian Navy 2000. Renamed LVNS Namejs |