A514GrB/A514 Grade B Quenched and Tempered High-Strength Alloy Steel Plate

Introduction:
A514GrB/A514 Grade B, an ASTM-compliant high-strength alloy steel plate, distinguishes itself through its exceptional mechanical properties, superior corrosion resistance, and extensive applicability across various industries. This quenched and tempered steel plate boasts a unique blend of chemical composition, resulting in unparalleled strength and durability. TJC Steel Group, a leading provider of premium steel products, is proud to offer A514GrB/A514 Grade B plates tailored to meet the most stringent project requirements.
Chemical Composition:
The superior performance of A514GrB/A514 Grade B stems from its carefully balanced chemical makeup. Key elements and their respective ranges include:
- Carbon (C): 0.12% - 0.21%, enhancing strength and hardness while maintaining balance with other properties.
- Silicon (Si): 0.20% - 0.35%, contributing to strength, heat resistance, and corrosion resistance.
- Manganese (Mn): 0.70% - 1.00%, acting as a deoxidizer and desulfurizer, improving strength and toughness.
- Phosphorus (P) and Sulfur (S): Both kept below 0.030% to minimize brittleness and crack sensitivity.
- Chromium (Cr) and Nickel (Ni): Enhancing corrosion resistance and improving strength and toughness.
- Molybdenum (Mo): Strengthening the steel and improving high-temperature performance.
- Copper (Cu) and Vanadium (V): May vary depending on production standards, with Cu potentially influencing certain properties, and V refining grain structure and improving weldability.
Mechanical Properties:
A514GrB/A514 Grade B excels in mechanical performance, with:
- Yield Strength: 690MPa to 1000MPa, ensuring structural integrity under high stress.
- Tensile Strength: 760MPa to 1100MPa, demonstrating remarkable resistance to breaking.
- Elongation: 18% to 25%, indicating excellent ductility and formability.
- Hardness: High, tailored through manufacturing processes.
- Impact Toughness: Over 100J, signifying robust toughness against sudden impacts.
Heat Treatment Status:
TJC Steel Group supplies A514GrB/A514 Grade B plates in the quenched and tempered condition. This involves heating the steel to at least 900°C, followed by quenching in water or oil and tempering at a temperature not lower than 620°C. This treatment optimizes the steel's mechanical properties and weldability.
Producible Size Range:
A514GrB/A514 Grade B plates are available in a wide range of dimensions to cater to diverse project needs:
- Thickness: 8mm to 150mm
- Width: 1600mm to 3900mm
- Length: 6000mm to 14000mm
Customized sizes and cutting services are also available upon request, ensuring seamless integration into any project.
Low-Temperature Impact Testing:
While specific low-temperature impact test data may vary based on production conditions, A514GrB/A514 Grade B is known for its excellent low-temperature toughness, making it suitable for applications in cold environments.
Key Application Scenarios:
A514GrB/A514 Grade B finds extensive use in demanding industries requiring high strength and durability, including:
- Engineering Equipment: Gears for engineering vehicles, lift mechanisms, and marine channel racks.
- Ocean Engineering: Platforms, pipelines, and structures subject to harsh marine environments.
- Mining and Construction: Drill rigs, excavators, loaders, bulldozers, cranes, and hydraulic supports.
- Infrastructure: Bridge supports, high-rise building structures, and industrial machinery.
- Power Generation: Power towers, transformers, and other heavy-duty equipment.
TJC Steel Group Supply Cases:
TJC Steel Group has successfully supplied A514GrB/A514 Grade B plates to numerous prestigious projects worldwide, including:
- Ocean Platforms: Supplying plates for critical structural components, withstanding extreme oceanic conditions.