Issue of Corrosion of chemical ammunition dumped in Baltic Sea after WW2 is actual because of recent accidents involving contamination of fish, burns of fishermen and uncautious beach – goers by substances released from chemical ammunition show the need of taking counteractions. This poses a question, if extraction of these dangerous cartridges is possible in safe way without unsealing containers and releasing chemical measures into the environment. The aim of this paper is to examine corrosion rate of chemical munitions materials (in mm/year). This rate allows valuation of time period in which chemical containers remain sealed. In addition paper presents analysis of possibility of safe extraction of chemical ammunition without environment contamination.