| | RESISTENCIA (N/mm2) |
| EXPOSICIÓN |
| ACERO (kg) |
| ENCF |
a |  |
HA 25 |
 |
IIa |
 |
B 400 S - 20 |
 |
s/ |
b |  |
HA 30 |
 |
IIa+Qa |
 |
B 400 S - 25 |
 |
c/ |
c | |
|
 |
IIa+ Qb |
 |
B 400 S - 30 |
|
|
d | |
|
 |
IIIa |
 |
B 400 S - 35 |
|
|
e | |
|
 |
IIIa+Qa |
 |
B 400 S - 40 |
|
|
f | |
|
 |
IIIa+Qb |
 |
B 500 S - 20 |
|
|
g | |
|
|
|
 |
B 500 S - 25 |
|
|
h | |
|
|
|
 |
B 500 S - 30 |
|
|
i | |
|
|
|
 |
B 500 S - 35 |
|
|
j | |
|
|
|
 |
B 500 S - 40 |
|
|
|