AR400 Steel Plate Properties: Essential Features You Need to Know

Understanding AR400 Steel Plate

AR400 steel plate is a high carbon steel alloy known for its exceptional hardness and strength. The designation "AR" stands for "Abrasion Resistant," which highlights its primary characteristic—its ability to withstand wear and tear in aggressive environments. This type of steel is commonly used in applications such as mining, construction, and agriculture where durability is crucial.

Key Properties of AR400 Steel Plate

AR400 steel is characterized by several essential features, including:

• Hardness: AR400 typically has a Brinell hardness of 360 to 440 HB. This hardness allows it to resist abrasion and maintain its structural integrity under heavy loads.
• Tensile Strength: The tensile strength of AR400 steel generally ranges from 1,450 to 1,600 MPa. This high tensile strength makes it particularly suited for applications requiring materials that can handle heavy stresses.
• Impact Resistance: While AR400 is tough, its impact resistance is tailored to specific applications where sharp impacts and heavy loads are present. It performs well in environments where toughness is necessary for maintaining safety and operational efficiency.
• Weldability: Though AR400 can be welded, special techniques and filler materials are recommended to avoid cracking. Preheating and post-weld heat treatment may be necessary to ensure the integrity of the welds.
• Formability: While the steel is tough, it can be formed into various shapes using appropriate methods, such as punching, shearing, and pressing, given the right conditions and care.

Applications of AR400 Steel Plate

Due to its unique combination of properties, AR400 steel plate is used across various industries, including:

• Construction: Used in structural supports for buildings and bridges, as well as in equipment that endures high wear.
• Mining: Essential for manufacturing equipment like chutes, hoppers, and liners where heavy materials are transported and crushed.
• Agriculture: Common in the fabrication of trailers, plows, and other machinery that must withstand rigorous use in tough conditions.
• Manufacturing: Employed in the production of parts that require durability and resistance to wear, such as in heavy machinery and industrial equipment.

Comparing AR400 with Other Steel Plates

When choosing steel plates, it’s beneficial to compare AR400 with other grades such as AR450 and AR500. Each type has varying levels of hardness and applications suited to specific environments:

• AR450: With a hardness range of 420 to 480 HB, this steel is ideal for applications needing a balance between hardness and ductility.
• AR500: Even harder than AR400, with a hardness of 450 to 550 HB, AR500 is suited for the most demanding wear applications but offers less ductility.

Conclusion

AR400 steel plate is a highly versatile material offering exceptional hardness and wear resistance, making it a popular choice across various tough industrial applications. Understanding its properties, applications, and advantages over other steel types is essential for industries looking to enhance performance and longevity in their projects.