High-Strength Low-Alloy Structural Carbon Steel (HSLA)
A656 STEEL PLATE
A656 Steel is a high-strength steel alloy used primarily in applications that require a combination of structural strength and high formability. This steel, specified under ASTM A656, is ideal for the fabrication of steel structures that require high tensile strength and good formability. It is available in several grades, which vary depending on strength requirements and industrial applications.
- Composition: A656 steel is mainly composed of iron, with a significant content of carbon, manganese, and other alloying elements that enhance its mechanical properties, such as tensile strength and hardness.
- Properties: High tensile strength, excellent formability, good weldability and processability, and moderate corrosion resistance. This steel has high structural strength, making it suitable for heavy-duty and demanding applications.
- Heat treatment: This steel undergoes a normalization process to improve its strength and uniformity. It is available in various conditions, including grades with different tensile strength values.
Applications: Used in the fabrication of high-strength structural components for heavy machinery construction, vehicles, industrial structures, and construction applications.
- Composition: A656 steel is mainly composed of iron, with a significant content of carbon, manganese, and other alloying elements that enhance its mechanical properties, such as tensile strength and hardness.
- Properties: High tensile strength, excellent formability, good weldability and processability, and moderate corrosion resistance. This steel has high structural strength, making it suitable for heavy-duty and demanding applications.
- Heat treatment: This steel undergoes a normalization process to improve its strength and uniformity. It is available in various conditions, including grades with different tensile strength values.
- Construction Industry: Applications: Beams, columns, and other structural components that require high strength and formability.
- Heavy Machinery Industry: Applications: Parts for construction and mining equipment, such as chassis, platforms, and heavy machinery structural components.
- Automotive and Transportation Industry: Applications: Components for heavy vehicles, such as trucks and trailers, where a combination of mechanical strength and good formability is required.
- Shipbuilding Industry: Applications: Vessel structures and industrial equipment components that require high strength and durability.
- Energy Industry: Applications: Structural components for power plants and other industrial infrastructure applications that require high-strength materials.
Element | A656 Steel (%) |
|---|---|
Carbon (C) | 0.12 - 0.21 |
Manganese (Mn) | 0.60 - 1.60 |
Silicon (Si) | 0.15 - 0.40 |
Phosphorus (P) | ≤ 0.04 |
Sulfur (S) | ≤ 0.05 |
Chromium (Cr) | ≤ 0.30 |
Nickel (Ni) | ≤ 0.20 |
Molybdenum (Mo) | ≤ 0.10 |
Property | Value |
|---|---|
Tensile strength | 380 - 700 MPa |
Yield strength | 250 - 450 MPa |
Hardness (Brinell HB) | 130 - 250 HB |
Elongation (%) | 20 - 25% |
Impact resistance | High |
Thickness (mm) | Width (mm) | Length (mm) |
|---|---|---|
6 - 50 | 1500 - 2500 | 3000 - 6000 |
50 - 100 | 1500 - 2500 | 3000 - 6000 |
100 - 150 | 1500 - 2500 | 3000 - 6000 |
Standard/Specification | Equivalent Grade |
|---|---|
ASTM A656 | A656 Grades 50, 60, 70, 80 |
EN 10025 | S355J2 |
UNS K06025 | A656 Grade 50 |
A656 Steel is a high-strength alloy ideal for structural applications that require a combination of high tensile strength and excellent formability. Thanks to its superior mechanical properties, it is suitable for a wide range of applications in sectors such as construction, heavy machinery, transportation, and energy. This steel ensures high performance under demanding conditions and is easy to process, weld, and use in various industrial configurations.