... riveted to each other to form the hexagonal apertures. Hexsteel grating are mainly used in Reactor vessels, Ducts, Furnaces, Cyclones, Flue ... , A3, OCr13,1Cr13,0Cr18Ni9,1Cr18Ni9Ti , Cr25Ni20 SUS304 SUS316etc, Usage: Hexsteel grating are mainly used in Reactor vessels, Ducts, Furnaces, Cyclones, Flue ...