Steel Keg

Steel Kegs are the metal varient of the barrel. Just like the barrel it can be opened even if a block is on top but can't be joined like a chest. Villagers will not be able to use the keg as a work station and it will have a very high blast resistance.

Steel kegs could also be sealed and unsealed with some kind of item so that players could have containers that can't be opened and can only be supplied and emptied by hoppers and such.

Im surprised we haven't gotten a keg or drum along with the introduction of the barrel and I think that the addition of any new storage containers is welcomed by all players.