Understanding AR400 Steel: Key Features and Uses

Composition and Properties of AR400 Steel

AR400 steel, also known as abrasion-resistant steel, is designed for high impact and high wear applications. Its hardness range is 360-440 BHN (Brinell hardness number), making it an ideal choice for environments that require high durability. The steel's chemical composition typically includes:

• Carbon: 0.19% maximum
• Manganese: 1.10% - 1.60%
• Phosphorus: 0.03% maximum
• Sulfur: 0.01% maximum
• Chromium: 0.50% maximum
• Niobium: 0.02% maximum

This specific blend of elements contributes to the steel's excellent wear resistance, strength, and toughness.

Key Features of AR400 Steel

High Abrasion Resistance

The primary feature of AR400 steel is its high abrasion resistance, which allows it to withstand severe wear and tear. This makes it suitable for use in heavy machinery, mining, and construction equipment.

Enhanced Durability

AR400 steel's hardness gives it enhanced durability compared to standard steels. It can handle heavy impact without losing its structural integrity, making it preferable for environments where machinery faces constant stress.

Versatile in Fabrication

Despite its hardness, AR400 is not excessively difficult to work with. It can be welded and formed into various shapes, although pre-heating is often recommended to maintain its properties.

Common Uses of AR400 Steel

Mining and Mineral Processing

In the mining industry, AR400 steel is frequently used in equipment like chutes, hoppers, and liners, which are exposed to abrasive materials. Its ability to withstand heavy wear makes it a preferred choice for these applications.

Construction Equipment

AR400 steel is also utilized in the construction industry for components that experience high wear rates, such as buckets for excavators and dozers. Its strength ensures that these tools maintain functionality over time.

Material Handling

In material handling systems, AR400 steel is used for conveyors and other systems that transport abrasive materials. Its durability contributes to reduced downtime and maintenance costs.

Conclusion

Understanding AR400 steel is essential for selecting the right material for high-wear environments. Its unique properties, such as exceptional abrasion resistance, durability, and versatility, make it an ideal choice for various industrial applications. Whether it’s for mining, construction, or material handling, AR400 steel offers a reliable solution that meets the demands of tough working conditions.

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