Corrosion Resistant High-Strength Low-Alloy Structural Metal Steel to ASTM A 588/A 588M Standard
(Up to 50 KSI (345 MPa) Minimum Yield Point, with Atmospheric Corrosion Resistance)
Use:
This
specification is intended primarily for use in welded bridges and
buildings where savings in weight or added durability are important.
The atmospheric corrosion resistance of this uncoated steel in most environments
is substantially better than that of carbon structural metal steels with or
without copper addition. When properly exposed to the atmosphere, this
steel is suitable for many applications in bare condition without any coating.
A588 Corrosion Resistant Steel Chemical Properties
|
|
Grade
A
|
Grade
B
|
Grade
C
|
Grade
K
|
|
Carbon,
max
|
0.19
|
0.20
|
0.15
|
0.17
|
|
Manganese,
max
|
0.80-1.25
|
0.75-1.35
|
0.80-1.35
|
0.50-1.20
|
|
Phosphorus,
max
|
0.04
|
0.04
|
0.04
|
0.04
|
|
Sulphur,
max
|
0.05
|
0.05
|
0.05
|
0.05
|
|
Silicon
|
0.30-0.65
|
0.15-0.50
|
0.15-0.40
|
0.25-0.50
|
|
Nickel,
max
|
0.40
|
0.50
|
0.25-0.50
|
0.40
|
|
Chromium
|
0.40-065
|
0.40-0.70
|
0.30-0.50
|
0.40-0.70
|
|
Molybdenum,
max
|
...
|
...
|
...
|
0.10
|
|
Copper
|
0.25-0.40
|
0.20-0.40
|
0.20-0.50
|
0.30-0.50
|
|
Vanadium
|
0.02-0.10
|
0.01-0.10
|
0.01-0.10
|
...
|
|
Columbium
|
...
|
...
|
...
|
0.005-0.05
|
* Note: For each
reduction of 0.01% below the specified carbon maximum, an increase of
0.06% manganese above the specified maximum will be permitted, up to
the maximum of 1.35%.
A588 Corrosion Resistant Steel Mechanical Properties
|
|
For
Thicknesses 4 in. and under
|
For
Thicknesses Over 4 in. to 5 in. incl
|
or
Thicknesses Over 5 in. to 8 in. incl
|
|
Tensile
Strength:
|
70,000 psi
[485 MPa]
|
67,000 psi
[460 MPa]
|
63,000 psi
[435 MPa]
|
|
Min.
Yield Point:
|
50,000psi
[345 MPa]
|
46,000psi
[315 MPa]
|
42,000psi
[290 MPa]
|
|
Elongation
in 8":
|
18% min
|
...
|
...
|
|
Elongation
in 2":
|
21% min
|
21% min
|
21% min
|
We can supply:
Thickness from 6mm to 100mm (although thicker plates might be manufactured under special order)
Width: from 1,500mm to 4,100mm
Length: from 6,000mm to 20,000mm
|
|
