A stainless steel cable tray is a robust structural metallic bridge containing and covering electrical wires. It does not rust away when in damp, salty or messy environments. This zinc coating provides moderate corrosion resistance, making galvanized steel cable trays ideal for installations in dry indoor or outdoor environments with. Stainless steel cable trays are popular for a reason. They offer a simple, effective solution for cable management. The alloy also contains molybdenum. Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in. Aluminium cable trays are lightweight and corrosion-resistant, making them suitable for indoor and some outdoor applications.