TJC Steel Group is proud to introduce the A514GrH/A514 Grade H high-strength alloy steel plate, a premium material specifically designed for applications requiring exceptional strength, toughness, and weldability. Fabricated under strict ASTM A514/A514M-2014 standards, this steel plate undergoes rigorous quenching and tempering heat treatments to achieve unparalleled mechanical properties.

Chemical Composition:

The A514GrH/A514 Grade H alloy steel plate boasts a carefully balanced chemical composition that contributes to its superior performance. The key elements include:

- Carbon (C): 0.12% - 0.21%

- Silicon (Si): ≤ 0.35%

- Manganese (Mn): 0.95% - 1.30%

- Phosphorus (P): ≤ 0.025%

- Sulfur (S): ≤ 0.005%

Additionally, trace amounts of chromium, nickel, molybdenum, and copper are added to enhance the steel's strength and toughness.

Mechanical Properties:

The A514GrH/A514 Grade H plate exhibits remarkable mechanical properties, making it an ideal choice for high-stress applications:

- Yield Strength: 690 MPa to 830 MPa

- Tensile Strength: 965 MPa to 1100 MPa

- Hardness: 235-293 HBW

These properties, coupled with its high ductility and elongation rates, ensure the plate maintains structural integrity under extreme loading conditions.

Heat Treatment Status:

The A514GrH/A514 Grade H steel plate is delivered in a quenched and tempered (Q&T) condition. This heat treatment process involves rapidly cooling the steel from the austenitic phase to induce martensitic transformation, followed by a tempering step to relieve internal stresses and improve toughness. The typical heat treatment involves heating the plate to a minimum of 900°C (1650°F), quenching in water or oil, and then tempering at a temperature not less than 620°C (1150°F).

Available Sizes and Dimensions:

TJC Steel Group offers the A514GrH/A514 Grade H plate in a wide range of thicknesses and dimensions to suit various applications:

- Thickness: 6 mm to 65 mm

- Width: 1600 mm to 4300 mm

- Length: 6000 mm to 17800 mm

Common sizes include 2000 mm/2200 mm/2500 mm/3000 mm wide by 12000 mm long.

Low-Temperature Impact Testing:

While specific low-temperature impact testing requirements may vary based on customer specifications, the A514GrH/A514 Grade H steel plate is known for its excellent toughness even at low temperatures. This characteristic makes it suitable for applications in cold environments where material brittleness can be a concern.

Key Applications:

The exceptional properties of A514GrH/A514 Grade H steel plate make it a preferred material for various high-demand applications:

1. Ocean Engineering: Used in offshore platforms, channel racks, jack-up legs, and other marine structures, where high strength and corrosion resistance are crucial.

2. Bridge Construction: Ideal for bridge beams, support structures, and other critical components requiring high load-bearing capacity and durability.

3. Heavy Machinery: Found in large excavators, cranes, mining equipment, and railway infrastructure, where high strength and wear resistance are essential.

4. Petrochemical and Energy: Utilized in pipelines, wind turbines, and other energy-related infrastructure due to its strength and corrosion resistance.

TJC Steel Group Supply Cases:

TJC Steel Group has successfully supplied A514GrH/A514 Grade H steel plates to numerous prestigious projects worldwide, including:

- The construction of offshore oil platforms in the Gulf of Mexico, where the steel's corrosion resistance and high strength were paramount.

- The reinforcement of a major suspension bridge, ensuring structural integrity under heavy traffic loads and harsh weather conditions.

- The fabrication of mining equipment, where wear resistance and durability were key factors in extending equipment life and reducing downtime.