A514GrK/A514 Grade K, a premium grade of quenched and tempered high-strength alloy steel plate, stands as a testament to technological advancements in steel manufacturing. Manufactured and supplied by TJC Steel Group, this steel plate boasts exceptional mechanical properties, making it an ideal choice for demanding applications across various industries. This article delves into the detailed chemical composition, mechanical properties, heat treatment status, available dimensions, low-temperature impact resistance, primary applications, and specific supply cases from TJC Steel Group.

Chemical Composition:

The A514GrK/A514 Grade K steel plate is carefully formulated to achieve its unparalleled strength and durability. Its chemical composition includes essential elements precisely balanced to enhance performance. The key components and their respective percentages are as follows:

- Carbon (C): ≤ 0.20%

- Silicon (Si): ≤ 0.35%

- Manganese (Mn): 1.2% - 1.7%

- Phosphorus (P): ≤ 0.025%

- Sulfur (S): ≤ 0.005%

- Alloying Elements (e.g., Cr, Ni, Mo, V, Ti): Present in trace amounts to further enhance corrosion resistance and mechanical properties.

Mechanical Properties:

The exceptional mechanical properties of A514GrK/A514 Grade K make it a go-to material for high-stress applications. Key mechanical properties include:

- Tensile Strength: Ranging from 1860 MPa to 2410 MPa, depending on the delivery condition and processing method.

- Yield Strength: Typically between 1400 MPa and 1800 MPa, again influenced by the delivery state and treatment.

- Elongation: 18% - 21%, indicating excellent ductility and toughness.

- Impact Toughness: Exceeding 60J, ensuring high resistance to impact even at low temperatures.

Heat Treatment Status:

To achieve its superior mechanical properties, A514GrK/A514 Grade K undergoes rigorous heat treatment consisting of quenching and tempering. The process involves heating the steel plate to a temperature not lower than 900°C, followed by rapid cooling in water or oil (quenching). This is followed by tempering at a temperature not lower than 620°C to relieve internal stresses and improve toughness.

Available Dimensions:

TJC Steel Group offers A514GrK/A514 Grade K steel plates in various sizes to cater to diverse application requirements. The typical range includes:

- Thickness: 8mm - 150mm

- Width: 1600mm - 3900mm

- Length: 6000mm - 14000mm

Custom sizes and cut-to-length plates are also available upon request.

Low-Temperature Impact Testing:

A514GrK/A514 Grade K has been tested and proven to maintain high impact toughness even at low temperatures. This characteristic ensures reliable performance in cold environments, making it suitable for applications such as Arctic and offshore structures.

Primary Applications:

Thanks to its exceptional properties, A514GrK/A514 Grade K finds widespread application in:

- Shipbuilding and Marine Engineering: Critical components like ship hulls, ocean platforms, and drilling rigs benefit from its corrosion resistance and impact strength.

- Mining Equipment: Used in heavy-duty equipment like truck bodies, screens, and hydraulic supports, enhancing durability and lifespan.

- Petrochemical Industry: Key components like reactors, vessels, and pipelines require high-strength materials like A514GrK to withstand harsh conditions.

- Bridge Construction: Reinforcing bridges' load-bearing structures and decks, enhancing overall load capacity and durability.

TJC Steel Group Supply Cases:

TJC Steel Group has successfully supplied A514GrK/A514 Grade K steel plates to various prestigious projects worldwide. A notable example includes the supply of over 1000 tons of A514GrK plates for the construction of an offshore drilling platform in the Gulf of Mexico. The plates' exceptional strength and toughness were crucial in ensuring the platform's structural integrity and safety in harsh oceanic conditions.