A588 steel is well known for its weathering ability. When exposed to external conditions, its corrosion-resistant properties become stronger, even when unpainted. A588 steel has four times as much corrosion resistance as carbon steel. And A588 has a wide range of applications that include transmission and phone towers, freight cars, bridge and highway structures and guardrails because of the self-repairing, natural oxide patina greatly reduces maintenance. This steel also maintains an excellent strength-to-weight ratio, meeting the strength requirements of carbon steel while weighing much less.
| The Mechanical Properties of A588 |
| Steel grade |
Minimum yield strength |
Tensile strength |
Minimum elongation - A |
| MPa |
MPa |
|
|
| A588 |
290-345 |
435-485 |
18-21 |
|
The Chemical Composition of A588 |
| Steel grade |
C |
Si |
Mn |
P |
S |
Cu |
Cr |
Ni |
| max.
|
%
|
%
|
max.
|
max. |
%
|
%
|
%
|
|
%
|
%
|
%
|
|
|
| A588 |
0.19 |
0.15-0.4 |
0.8 - 1.35 |
0.04 |
0.05 |
0.2 - 0.50 |
0.3 - 0.5 |
0.25-0.5 |
