We use cookies to analyze traffic and improve your experience. We may also share your information with our analytics partners to improve our website, as detailed in our Privacy Policy. You consent to our cookies if you continue to use this website.
A572 Steel Plate
ASTM A572 is used in a variety of structural applications, and is available in five grades: 42, 50, 55, 60 & 65.
Overview:
- Popular steel plate grade used for a variety of structural applications including bridges, buildings, construction equipment, freight cars, machinery, truck parts and transmission towers.
- Available in five grades: 42, 50, 55, 60 and 65.
- Available in standard and heavy (3-inches or greater) plate thickness.
- May be certified to multiple standards on Mill Test Report, but guaranteed to be certified to meet ASTM A572 standards.
Available Sizes
Leeco® Steel stocks the following standard sizes at our distribution centers, but other sizes may be available for special orders.
| GRADE | THICKNESS | WIDTH | LENGTH |
| Grade 42 | 4" – 6" | 48" – 120" | Up to 480" |
| Grade 50 | 3/16" – 4" | 48" – 120" | Up to 480" |
| Grade 55 | 3/16" – 1 1/2" | 48" – 120" | Up to 480" |
| Grade 60 | 3/16" – 1 1/4" | 48" – 120" | Up to 480" |
| Grade 65 | 3/16" – 1 1/4" | 48" – 120" | Up to 650" |
Material Properties
The following material properties are ASTM specifications and will be confirmed on the Mill Test Report.
|
Grade |
Yield Point (ksi) |
Tensile Strength (ksi) |
Min. 8" Elongation % |
|
42 |
42 |
60 |
20 |
|
50 |
50 |
65 |
18 |
|
55 |
55 |
70 |
17 |
|
60 |
60 |
75 |
16 |
|
65 |
65 |
80 |
15 |
Chemical Composition
The following composition properties are ASTM specifications for the A572 grades.
| Grade 42 | + |
|
Grade 42 |
|
|
Carbon max |
0.21% |
|
Manganese max |
1.35% |
|
Phosphorus max |
0.030% |
|
Sulfur max |
0.030% |
|
Silicon to 1 1/2" thick, max |
0.40% |
|
Silicon over 1 1/2" thick |
0.15-0.40% |
| Grade 50 | + |
|
Grade 50 |
|
|
Carbon max |
0.23% |
|
Manganese max |
1.35% |
|
Phosphorus max |
0.030% |
|
Sulfur max |
0.030% |
|
Silicon to 1 1/2" thick. max |
0.40% |
|
Silicon over 1 1/2" thick |
0.15-0.40% |
| Grade 55 | + |
|
Grade 55 |
|
|
Carbon max |
0.25% |
|
Manganese max |
1.35% |
|
Phosphorus max |
0.030% |
|
Sulfur max |
0.030% |
|
Silicon to 1 1/2" thick, max |
0.40% |
|
Silicon over 1 1/2" thick |
0.15-0.40% |
| Grade 60 | + |
|
Grade 60 |
|
|
Carbon max |
0.26% |
|
Manganese max |
1.35% |
|
Phosphorus max |
0.030% |
|
Sulfur max |
0.030% |
|
Silicon max |
0.40% |
| Grade 65 ≤1/2" Thick | + |
|
Grade 65 ≤1/2" Thick |
|
|
Carbon max |
0.26% |
|
Manganese max |
1.35% |
|
Phosphorus max |
0.030% |
|
Sulfur max |
0.030% |
|
Silicon max |
0.40% |
| Grade 65 Over 1/2" to 1 1/4" Thick | + |
|
Grade 65 Over 1/2" to 1 1/4" Thick |
|
|
Carbon max |
0.23% |
|
Manganese max |
1.65% |
|
Phosphorus max |
0.030% |
|
Sulfur max |
0.030% |
|
Silicon max |
0.40% |
Other alloys can be used at the discretion of the producer, but is limited to the ranges of four types: 1, 2, 3 and 4. Types 1 and 2 are the most common and are specified below:
| Type 1 | + |
|
Type 1 |
|
|
Columbium |
0.005-0.05% |
| Type 2 | + |
|
Type 2 |
|
|
Vanadium |
0.01-0.15% |
Make sure you see the rest of Leeco Steel's High Strength Low Alloy steel plate inventory.
