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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