Heavy Plate
BMG’s specialized Heavy Plate division is dedicated to supplying manufacturers and builders with steel plates whose thickness reaches or exceeds three inches.
A572 STRUCTURAL STEEL PLATE
A572 is a high-strength low-alloy (HSLA) structural steel used primarily in construction and other industries that require materials with high yield and tensile strength. It is available in five grades: 42, 50, 55, 60, and 65.
A572 steel is characterized by a favorable strength-to-weight ratio, good toughness, and the ability to carry heavy loads. Its chemical composition provides excellent mechanical properties, making it ideal for structures subjected to high stresses and loads. It is easy to form and weld, which increases its utility in construction applications.
- High strength and load-bearing capacity.
- Lightweight compared to other steels with similar performance.
- Good weldability, reducing construction time.
- Ideal for slim, economical structural designs.
- Good ductility and machinability.
- Versatile across a wide range of environments and climates.
- Infrastructure: bridges and buildings.
- Energy: transmission towers.
- Construction: construction equipment fabrication.
- Industrial manufacturing: machinery and truck parts.
- Other: road plates and other high-strength structures.
A572 is well suited for structures requiring both high strength and reduced weight, such as bridges, buildings, and other engineered structures.
| Element | Maximum value |
| Carbon (C) | 0.21% |
| Manganese (Mn) | 1.35% |
| Phosphorus (P) | 0.030% |
| Sulfur (S) | 0.030% |
| Silicon (Si) | Up to 1 1/2": 0.40% Over 1 1/2": 0.15–0.40% |
Grade | Yield strength (ksi) | Tensile strength (ksi) | Elongation (min., 8") |
42 | 42 | 60 | 20 |
50 | 50 | 65 | 18 |
55 | 55 | 70 | 17 |
60 | 60 | 75 | 16 |
65 | 65 | 80 | 15 |
Plate thickness: available in standard and heavy plate, with thicknesses up to 3 inches or more.
A572 Grade 50: commonly used high-strength structural steel grade for construction.
A572 Grade 50 is highly efficient for structural construction projects due to its combination of high strength, reduced weight, and ease of fabrication. It also adapts well to different climates; however, corrosion protection should be considered when required.