Modern torpedo casings use specialized alloys

Are torpedo casings made from steel or plastic?

Modern torpedo bodies tend to use specialized alloys rather than a simple ordinary-steel or plastic casing.

The viewer frames the material choice as steel or plastic. The answer avoids reducing it to either ordinary category. Modern torpedo bodies use specialized alloys, although the response remains deliberately guarded. The brief exchange points to materials engineering as an important but often less visible part of torpedo design.