Reval - resistance to pitting corrosion in concrete structures

Valbruna Stainless Steel
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 RESISTANT TO CORROSION | TO PITTING | TO STRAY CURRENTS

REVAL® …RESISTANT TO PITTING
Prof. Pedeferri writes ... Click to open the article

TRIGGERING OF CHLORIDE CORROSION | CHLORIDES | PENETRATION OF CHLORIDES

REVAL® = DURABILITY

The type of corrosive attack, due to the presence of chlorides, that a stainless steel sunk in concrete meets is called PITTING.

The resistance to pitting depends upon the composition of stainless steel; the PRE (Pitting Equivalent Resistance) shows the more resistant steel to chloride attack.


 
  Chloride content (% by weight of cement)      
  1.4462
316L
1.4362
304Cu
304L
1.4162
241MOD
12Cr9
Zinc-coated
Epoxy-coated
Carbon steel
 

 pH

         
  Chloride content (% by weight of cement)      

 pH

1.4462
316L
1.4362
304Cu
304L
1.4162
241MOD
12Cr9
Zinc-coated
Epoxy-coated
Carbon steel
 

Schematic representation of fields of applicability of stainless steel bars in both alkaline (i.e. with pH around 13) and carbonated (i.e. with pH around 9) chloride contaminated concrete, at 20°C and 40°C.
The threshold levels are indicative only.

“REVAL® offer the best available solution against corrosion”

 
 
 
 
  Chloride attack
Chloride attack
 
     
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