This article presents a comprehensive overview of the A517GrA/A517 Grade A high-strength alloy steel plate, specifically tailored for pressure vessel applications. The plate undergoes a rigorous quenching and tempering heat treatment process, imparting exceptional mechanical properties and chemical compositions. We delve into its detailed specifications, including chemical composition, mechanical properties, heat treatment states, available production sizes, low-temperature impact testing, primary applications, and notable supply cases by TJC Steel Group.

Introduction:

The A517GrA/A517 Grade A steel plate, adhering to ASME standards, is a premium alloy steel designed for demanding pressure vessel construction. Its exceptional strength, coupled with uniform low-temperature toughness and low crack sensitivity, make it an ideal choice for various critical industries. This article explores every aspect of this versatile steel plate, ensuring readers have a comprehensive understanding of its capabilities.

Chemical Composition:

The A517GrA/A517 Grade A steel plate boasts a well-balanced chemical composition that contributes to its superior performance. Key elements include:

- Carbon (C): 0.15-0.21%

- Silicon (Si): 0.4-0.8%

- Manganese (Mn): 0.8-1.1%

- Phosphorus (P): ≤0.035%

- Sulfur (S): ≤0.035%

- Chromium (Cr): 0.5-0.8%

- Molybdenum (Mo): 0.18-0.28%

- Boron (B): ≤0.0025%

- Zirconium (Zr): 0.05-0.15%

This precise blend ensures optimal mechanical properties and resistance to corrosion and wear.

Mechanical Properties:

The A517GrA/A517 Grade A steel plate undergoes quenching and tempering, resulting in remarkable mechanical strengths:

- Tensile Strength: 795-930 MPa

- Yield Strength: ≥690 MPa

- Elongation: ≥16%

- Reduction of Area: ≥35%

These properties, coupled with its exceptional toughness, make it suitable for high-pressure applications.

Heat Treatment State:

The steel plate is subjected to a stringent heat treatment process, which involves heating the plate to a temperature not less than 900°C, followed by quenching in water or oil. It is then tempered at a temperature not less than 620°C. This process ensures uniform grain structure and optimizes the mechanical properties of the plate.

Production Size Range:

TJC Steel Group offers A517GrA/A517 Grade A steel plates in a wide range of dimensions to cater to various project requirements:

- Thickness: Up to 32mm (Standard Maximum), customizable options available

- Width: Customizable according to customer specifications

- Length: Customizable according to customer specifications

Low-Temperature Impact Testing:

The A517GrA/A517 Grade A steel plate exhibits excellent low-temperature toughness, ensuring reliable performance even in extreme conditions. Rigorous impact testing is conducted to ensure compliance with industry standards and customer requirements.

Primary Applications:

The A517GrA/A517 Grade A steel plate finds widespread application in critical industries due to its exceptional properties:

- Pressure Vessels

- Petrochemical Industry

- Oil and Gas Industry

- Power Generation

- Heavy Machinery

- Mining Equipment

TJC Steel Group Supply Cases:

TJC Steel Group, renowned for its quality steel products, has successfully supplied A517GrA/A517 Grade A steel plates to numerous prestigious projects globally. Some notable cases include:

- Supply of custom-sized A517GrA plates for a large-scale pressure vessel in a petrochemical plant

- Provision of high-strength A517 Grade A plates for critical components in an offshore oil drilling platform

- Fulfillment of bulk orders for A517GrA steel plates used in the construction of nuclear reactors

Conclusion:

The A517GrA/A517 Grade A quenched and tempered high-strength alloy steel plate is an outstanding material for pressure vessel and other critical applications. Its superior chemical composition, mechanical properties, and rigorous heat treatment process ensure reliability and durability in even the most demanding environments. TJC Steel Group, with its extensive experience and commitment to quality, stands as a reliable supplier of this exceptional steel plate.