Aluminium vs Steel: Which is Right for Your Structural Project?

Compare strength-to-weight ratios, corrosion lifespans, fabrication costs, and total cost of ownership between structural steel and T6 aluminium extrusions.
Is structural aluminium stronger than steel?
Per unit of weight, structural aluminium alloys (like 6061-T6) offer a superior strength-to-weight ratio compared to mild steel. While steel has higher absolute density, aluminium delivers comparable structural capacity at approximately one-third the total structural weight.
Structural Overview: Aluminium vs Steel
When designing structural framing, solar racking systems, or building enclosures, engineers frequently compare structural T6 aluminium extrusions against fabricated mild steel sections.
Have Questions About Profile Specifications for Your Project?
Speak directly with our metallurgical sales team. We assist architects and structural contractors with die design, alloy selection, and wind load calculations.
Written by Salasar Technical Engineering Team
Technical Hardware & Aluminium Engineering Team at Salasar Aluminium & Hardware, Raipur. Expert guidance on door kits, closers, shower hinges, and architectural fittings.
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