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Procurement & Quality

Aluminum vs Galvanized Steel Solar Mounting Structures

XINVOK Technical Team
•Published Buyer Guide•
8 min read

Comparing weight, corrosion resistance, cost and installation for the two most common mounting materials.

Key Procurement Takeaways for B2B Buyers
  • 1Anodized AL6005-T5 aluminum is lightweight, highly corrosion-resistant, and ideal for rooftops.
  • 2Hot-dip galvanized steel (Q235B/Q355B) offers higher yield strength for large-span ground arrays.
  • 3Pre-punched steel profiles speed up field bolting without site welding.
Comparison of anodized aluminum and hot-dip galvanized steel solar mounting rails
Comparison of anodized aluminum and hot-dip galvanized steel solar mounting rails

Material Characteristics Comparison

Choosing between aluminum and steel involves balancing weight, structural load requirements, and material costs. Anodized aluminum AL6005-T5 provides superior aesthetics and low weight for roof structures.

Frequently Asked Procurement Questions

Which material is better for coastal solar installations?

Anodized aluminum with ≥10µm anodization layer or high-zinc hot-dip galvanized steel (≥85µm) are both effective, with aluminum offering superior salt-spray resistance.

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Written By
XINVOK Technical Team

XINVOK Technical Team shares practical knowledge about PV mounting systems, roof interfaces, ground foundations, accessories, and engineering specifications for B2B buyers worldwide.

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