Stainless Steel Rebar: The 100-Year Reinforcement
Wholesale, mill-certified reinforcing steel — export-direct at mill prices.
What stainless rebar offers
Stainless reinforcing bar (grades like 1.4301/304, 1.4436/316, or lean-duplex 1.4362) resists chloride corrosion far beyond coated carbon steel — design lives of 100+ years in marine and de-iced structures. It needs no coating to damage, tolerates cracked concrete, and can be mixed with carbon steel in the same member (used only in the exposed zone) to control cost.
Where it pays for itself
The premium is real (several times carbon-steel price), so stainless is targeted: bridge decks and parapets, marine jetties, tunnels, coastal facades, and repairs where re-access is ruinously expensive. Over a 100-year life, avoiding one deck reconstruction usually dwarfs the upfront steel premium — the whole-life cost often favours stainless in the splash zone.
Specifying it
Match the stainless grade to the exposure (316/duplex for the harshest chloride), specify to BS 6744 / ASTM A955, and detail carbon/stainless transitions carefully to avoid galvanic issues. For most structures, mill-certified B500B with proper cover remains the economic choice — stainless is the tool for the corrosion-critical zone.
FAQ
How long does stainless rebar last?
In marine/chloride exposure, design lives of 100+ years — far beyond epoxy or galvanized carbon bar.
Which stainless grade for rebar?
304 for moderate exposure, 316 or lean-duplex for high-chloride marine and de-iced structures.
Is stainless rebar worth the cost?
In the splash zone of long-life structures, yes — avoiding one future reconstruction outweighs the premium.
Need b500b rebar at export prices?
Send sizes, tonnage and destination — written wholesale quote against today’s mill schedule within 24 hours. See B500B Rebar, all products and export & delivery.
Request a quote →