In order to protect living quarters and other vital areas of the platforms, blast and/or firewalls are used. Due to the combination of high mechanical properties at elevated temperatures and corrosion resistance, 316L is widely used for firewalls.

Blast walls need to absorb energy rapidly and possess good resistance to buckling as well as good corrosion resistance. SAF 2304 provides these properties and with appropriate designs

can offer significant weight savings and therefore reduce costs compared to 316L. Where greater corrosion resistance is required, the higher alloyed duplex grade 2205 may be used.