Thread: Suppressor failure

Originally Posted by Marty Henry

Ammonia and aluminium plus moisture equals corrosion. Duralum is better but will still get little white specks forming. This is why dpt and others reccomend taking the supressor off and airing it out. Even though its a little round the powder still produces water and ammonia in enough quantity to cause corrosion. On the bright side ammonia stops rusting on steel so the bores protected.

Duralum is Aluminium, its an old trade name for something in the 2000 series, none of which are not good for corrosion resistance. For this something like this I would have gone 6000 series. There is also the possibility that the flutes were cut too deep and the hoop stress (due to internal pressure) was too high causing the cracking