Composition of stainless steel alloys and corrosion resistance in concrete

Valbruna Stainless Steel
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COMPOSITION - STAINLESS STEEL


Stainless steel is the name given to a group of corrosion resistant steel alloys.
The families are distinguished by their microstructure, and their properties:

Austenitic
Ferritic
Martensitic
Duplex Stainless Steel


Corrosion resistance is enhanced by decreasing the carbon content, and increasing the nitrogen, chromium, nickel and molybdenum contents.
Only austenitic and duplex stainless steel are recommended as reinforcement to concrete because of their high
corrosion resistance.


CHEMICAL COMPOSITION
STEEL TYPES
C
max
Si
max
Mn
max
S
max
Cr
Ni
Mo
P
max
N

Cu

Others

XM-28 / S24100

 0.15 
1.0
11.0/14.0
 0.030
 16.5/19.0
0.5/2.5
-
0.060 0.20/0.45 - -
304/304L/304LN - 1.4301/1.4307
 0.03 
1.0
2.0
 0.030
 18.0/19.5
 8.0/10.0 
-
0.045 <=0.22 - -
316/316L - 1.4404 0.03 1.0 2.0
 0.030
16.5/18.5 10.0/13.0 2.0/2.5 0.045 <=0.11 - -
316LN - 1.4429
 0.03 
1.0
2.0
 0.015 
 16.5/18.5 
 11.0/14.0 
2.5/3.0
 0.045 
0.12/0.22 - -
316LN - 1.4436
 0.05 
1.0
2.0
 0.015 
 16.5/18.5 

10.5/13.0

2.5/3.0

0.045

<=0.22

- -
1.4571
 0.08 
1.0
2.0
 0.030
 16.5/18.5 

10.5/13.5

2.0/2.5

0.045

-
- TI:5 X C to 0.70
321 - 1.4541
 0.08 
1.0
2.0
 0.030
17.0/19.0
9.0/12.0
- 0.045
-
- TI:5 X C to 0.70
1.4162 0.04 1.0 4.0/6.0
 0.030
21.0/22.0 1.35/1.70 0.10/0.80 0.040 0.20/0.25 0.10/0.80 -
1.4362 0.03 1.0 2.0 0.015 22.0/24.0 3.50/5.50 0.10/0.60 0.035 0.05/0.20 0.10/0.60 -
318 - 1.4462 0.03 1.0 2.0 0.015 21.0/23.0
 4.5/6.5 
2.5/3.5 0.035 0.10/0.22 - -
1.4529 0.02 0.5 1.0 0.010 19.0/21.0
 24.0/26.0 
6.0/7.0 0.030 0.15/0.25 - -

STEEL TYPES
AUSTENITIC
DUPLEX
SUPERAUSTENITIC
XM-28 316/316L 1.4162 1.4529
S24100 S31600 *LDX2101®  
S30400 S31603 1.4362  
1.4301 1.4404 318  
304/304L 316S33 S31803  
S30403 316LN 1.4462  
1.4307 1.4429 318S13  
304S31 1.4436    
304LN S31653    
S30453 1.4571    
321      
1.4541      

* Outokumpu registered trademark


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