High-Strength Low-Alloy Columbium-Vanadium Structural Steel to ASTM A 572 / A 572M Standard
Use:
This specification covers five grades of high-strength low-alloy structural steel shapes, plates, sheet piling, and bars.
Grades 42 [290], 50 [345], and 55 [380] are intended for riveted, bolted, or welded structures.
Grades
60 [415] and 65 [450] are intended for riveted or bolted construction
of bridges, or for riveted, bolted, or welded construction in other
applications.
A572 High Strength Steel Chemical Properties
|
|
Grade
42 [290]
|
Grade
50 [345]
|
Grade
60 [415]
|
Grade
65 [450]
thick>1/2
in.
|
Grade
65 [450]
thick<=1/2
in.
|
|
Carbon,
max
|
0.21
|
0.23
|
0.26
|
0.23
|
0.26
|
|
Manganese,
max
|
1.35
|
1.35
|
1.35
|
1.65
|
1.35
|
|
Phosphorus,
max
|
0.04
|
0.04
|
0.04
|
0.04
|
0.04
|
|
Sulphur,
max
|
0.05
|
0.05
|
0.05
|
0.05
|
0.05
|
|
Silicon
Plates
to 1-1/2 in. thick
Plates
over 1-1/2 in. thick
|
0.40
0.15-0.40
|
0.40
0.15-0.40
|
0.40
0.15-0.40
|
N/A
|
N/A
|
*
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%.
A572 High Strength Steel Mechanical Properties
|
|
Grade
42 [290]
|
Grade
50 [345]
|
Grade
60 [415]
|
Grade
65 [450]
|
|
Tensile
Strength:
|
60,000 psi
[415 MPa]
|
65,000 psi
[450 MPa]
|
75,000 psi
[520 MPa]
|
80,000 psi
[550 MPa]
|
|
Min.
Yield Point:
|
42,000psi
[290 MPa]
|
50,000psi
[345 MPa]
|
60,000psi
[415 MPa]
|
65,000psi
[450 MPa]
|
|
Elongation
in 8":
|
20% min
|
18% min
|
16% min
|
15% min
|
|
Elongation
in 2":
|
24% min
|
21% min
|
18% min
|
17% min
|
We can supply:
Thickness from 6mm to 150mm (although thicker plates might be manufactured under special order)
Width: from 1,500mm to 4,100mm
Length: from 6,000mm to 20,000mm
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|
