What materials / finishes are available for the various cable tray systems?

1. Steel (Min. Yield = 33KSI) (35 KSI for Stainless)

  • Plain: hot rolled pickled and oiled steel per ASTM A569 (Commercial Quality) or A570 (Structural Quality)
  • Pre-Galvanized: mill galvanized steel per ASTM A653 CS (Commercial) or SS (Structural) G90
  • Hot Dip Galvanized After Fabrication: plain steel which is hot dipped after fabrication per ASTM A123.
  • Stainless Steel: type 304 or 316L fully annealed stainless steel


2. Aluminum (Min.Yield = 23 KSI)

  • 6063-T6 or 5052-H32 alloy per ASTM B209


3. Fiber Reinforced Plastic (FRP)

  • Polyester and Vinyl Ester resin systems available
  • meet ASTM E-84 smoke density rating; Polyester 680, Vinyl Ester 1025
  • Class 1 Flame Rating and self-extinguishing requirements of ASTM D-635.

Source: Cable Tray Institute (CTI)