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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.
