Tier 2:
Mikasa:
76MM
51MM
Tier 3:
Kawachi:
76MM
South Carolina:
38MM
Konig Albert:
60MM
Nassau:
38MM
Tier 4:
Ishizuchi:
38MM
Myogi A & B hull:
57MM
Myogi C hull:
70MM
Wyoming:
51MM
Kaiser:
60MM
Nikolai:
38MM bulkhead
35MM deck
63MM deck
Tier 5:
Kongo:
Nothing
New York:

25MM deck
Konig:

20MM deck for whatever reason

60MM deck
Tier 6:
Fuso:
57MM deck
Arizona:
Nothing
New Mexico:
Nothing
Bayern:
60MM deck
140MM bulkhead
Dunkerque
Nothing
Warspite:
32MM deck
76MM deck
102MM bulkhead?
25MM internal deck.
Tier 7:
Nagato:
76MM deck
Colorado:

Nothing
Gneisenau
Nothing
Scharnhorst:
Nothing
Tier 8:
Amagi:
76MM deck
North Carolina:
Nothing
Bismarck:
20MM deck for whatever reason
Tirpitz:
Likewise 20MM deck
Tier 9:
Izumo:
38MM
51MM
Missouri:
Nothing
Iowa:
Nothing
Friedrich der Große
20MM
30MM
50MM
100MM
Tier 10:
Yamato:

Nothing.
Montana:

Nothing
Großer Kurfürst