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Table of Steel Content in Cable Trays

Fiber and communications infrastructure knowledge brief Published 23 Feb 2024

Use this reference to prepare product questions for BAGYOU FIBRE. Check interfaces, capacity, protection and installation requirements against the current product documentation.

Cable trays are typically made from carbon steel, stainless steel (AISI 316L), or galvanized steel, with steel content varying by type and finish.

Common Steel Types and Content

Carbon Steel

Used in standard ladder, ventilated, and solid-bottom trays. Often pre-galvanized or hot-dip galvanized for corrosion protection. Complies with ASTM A1011 (hot-rolled) or ASTM A1008 (cold-rolled) standards for structural steel with improved formability.

Steel content is essentially 100% iron with carbon content typically below 0. 3%, depending on grade.

Stainless Steel

Commonly AIS

I 316L grade for high corrosion resistance. Contains 10. 5–16% chromium, 2–3% molybdenum, and less than 1.

2% carbon. Provides excellent resistance to chlorides and harsh environments. Used in chemical plants, coastal areas, or other corrosive environments.

Galvanized Steel

Carbon steel coated with zinc via hot-dip (ASTM A123) or electroplating (ASTM B633). Zinc layer protects steel from corrosion while maintaining structural strength. Steel content remains the same as base carbon steel; zinc is an additional protective layer.

Typical Cable Tray Steel Content Table

Cable Tray Type

Base MaterialSteel Grade / StandardProtective FinishNotesLadder TrayCarbon SteelASTM A1011 / A1008Pre-galvanized / Hot-dip galvanizedStandard industrial useVentilated TrayCarbon SteelASTM A1011 / A1008Pre-galvanized / Hot-dip galvanizedLightweight, good airflowSolid Bottom TrayCarbon SteelASTM A1011 / A1008Pre-galvanized / Hot-dip galvanizedProtects cables from dust and debrisStainless Steel TrayStainless SteelAISI 316LNone (intrinsic corrosion resistance)High corrosion resistance, chemical environmentsWire Mesh TrayHigh-Strength Steel WireCustom alloyPowder-coated or galvanizedFlexible, lightweight, suitable for light cablesNotes on Material SelectionEnvironmental factors: Stainless steel is preferred in corrosive or marine environments, while galvanized carbon steel is suitable for indoor or mildly corrosive conditions.

Mechanical properties: Steel trays are selected for strength, rigidity, and load-bearing capacity. Stainless steel adds corrosion resistance but may be slightly less rigid than carbon steel of the same thickness. Standards compliance: Ensure trays meet NEMA VE 1/VE 2, ANSI/NFPA 70, and relevant ASTM standards for steel and coatings.

This table provides a practical reference for engineers and designers to select cable trays based on steel content, grade, and protective finish, ensuring both structural integrity and environmental suitability.

Table of Steel Content in Cable Trays - BAGYOU FIBRE NETWORKS [PDF]

Table of Steel Content in Cable Trays

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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