Specifying the right metal is the first decision on any furniture, railing or gate project. Here is how the three compare in real workshop terms.
Wrought iron / carbon steel (Q235)
Our workhorse. Highest stiffness per cost, easy to weld and forge, ideal for structural railings, gates and heavy furniture. It needs a protective coating, but with primer plus powder or galvanizing it serves outdoors for years.
Aluminum alloy
Light and naturally corrosion resistant, so it needs no coating in most climates. Lower strength than steel, so sections are larger. Best for windows, doors and large-span railings where weight matters.
Stainless steel (304 / 316)
Best corrosion resistance, especially 316 in coastal and chloride environments. Premium cost and harder to machine, but near maintenance-free. Used where appearance and longevity justify the price.
Comparison at a glance
Strength: steel highest. Weight: aluminum lightest. Corrosion: stainless best, aluminum good, steel needs coating. Cost: steel lowest, aluminum mid, stainless highest. Maintenance: stainless and aluminum lowest, steel needs periodic checks.
Our recommendation
Choose steel (Q235) for structural strength and value, aluminum where weight and corrosion matter, and 316 stainless for coastal or high-end projects. We help match the metal and finish to your site and budget.
