Introduction to Baosteel's AR600

What is Baosteel's AR600?

Baosteel's AR600 is an extremely hard wear-resistant steel plate, designed for applications with extreme wear conditions. Despite its high hardness, it can still be cut and welded. AR600 is a quenched and tempered martensitic wear-resistant steel plate, used in applications that require high wear resistance. It has a hardness of 600 Brinell hardness at delivery. It combines excellent weldability, high hardness, and high toughness. The good machinability it offers is something that many steels designed for high-wear applications lack, and it does not sacrifice wear resistance when increasing impact strength.

Please take a look at the product data sheet for detailed dimensions and specifications.

What Can Baosteel's AR600 Replace?

If your components are exposed to sliding wear from hard abrasives with a hardness of 900-1000 Vickers (HV), using a wear-resistant plate with a hardness of 600 Brinell can significantly increase their wear life. You can replace lower-hardness wear-resistant plates with AR600 and substitute it for surface-clad hard alloys and composite plates, chrome alloy white iron castings, or ceramics. Due to its properties, AR600 can withstand impacts that often cause these materials to fracture and fail.

1. Chrome Alloy White Iron Castings

The three main grades are: nickel-chrome (nickel-chrome chilled castings), chrome-molybdenum, and high-chrome. These materials mainly consist of chromium carbides precipitated in an austenitic or martensitic matrix. The lower crack resistance and impact toughness of chrome alloy white iron castings increase the sensitivity of worn parts to cracking. Due to their composition and carbide content, conventional machining methods such as welding, cutting, and machining are very difficult. The flexibility of castings in component design is limited due to fixed mold sizes and strict tolerances required for optimal fit.

2. Surface Clad Hard Alloys and Composite Plates

Composite plates and surface-clad hard alloys have a wide range of compositions and hardness levels. Their wear resistance is obtained through chromium carbide precipitates in a martensitic or austenitic matrix, similar to white iron castings. Deformation and severe cracking of wear plates are common in some manufactured composite plates due to the rapid heating and cooling during the welding process. This is not suitable for high-impact environments and can lead to delamination and rupture of the overlay. Due to dilution issues associated with cladding, thermal spraying, and welding, the cladding beads often fall off when exposed to severe wear. The lack of a smooth surface finish in some worn composite plates can increase friction, causing material problems in machinery.

3. Ceramics

Ceramic materials, such as oxides of aluminum and silicon, exhibit excellent wear resistance due to their very high hardness (1800-2000 HV). Their low toughness limits their use to mild impact applications. Since ceramics cannot be welded, alternative and sometimes more expensive attachment solutions must be considered. Combined with their high material costs, ceramics are only suitable for severe wear environments.

How Does AR600 Perform?

Wear resistance is not an inherent material property; it depends on the specific application. A material that shows excellent wear resistance in one set of conditions may perform poorly in different conditions. Material selection is complex and requires knowledge and experience in wear, as well as consideration of application design, daily maintenance, machining requirements, and practical issues such as material and manufacturing costs. The chart shows the relative wear life of AR600 compared to different grades of chrome alloy white iron castings, chromium carbide surface-hardened deposits/overlays, and ceramics when exposed to sliding wear from abrasives with a hardness of 900-1000 HV. Generally, AR600 shows slightly lower wear resistance than these types of wear-resistant materials. However, under certain conditions, AR600 shows wear resistance equal to or better than that of chromium carbide castings and wear-clad deposits. When considering functionality, hardness or content of hard chromium carbides, which determine the performance of wear parts, wear resistance is not the only factor. The material's sensitivity to cracking is also very important. In this case, the impact toughness provided by AR600 exceeds that of white iron castings, ceramics, overlays, and surface-hardened deposits.

What Are the Advantages of AR600?

Here are some additional advantages of AR600:

• The steel plate is readily available. All properties are inherent in the plate at delivery, with no additional heat treatment required.
• Large-area protection can be achieved at a relatively low cost.
• The properties within the plate are uniform and consistent.
• Machining, welding, and cutting can be easily performed using conventional methods.
• Spare parts can be quickly and easily manufactured for direct installation and replacement of components. Tight tolerances for component manufacturing are easily achieved.
• The perfect balance of hardness, yield strength, and impact toughness enables the lightweight design of wear parts.
• Excellent impact toughness. Additional benefits include: + High wear resistance + Machinable + Easy access to steel plates + Uniform properties + Weldable = Lower cost per hour of use

Where Can I Use AR600?

‍AR600 has been successfully used as liners in conveying systems, wear strips, feeders, chutes, concrete mixers, and other high-wear equipment. In the recycling industry, it has been used for rotary hammers and shredder blades to achieve optimal performance. Your AR600 wear parts can be attached to a rigid support to limit bending. Additional stress from structural loads should also be kept at a low level.

About Baohui Steel Limited

Baohui Steel Limited is a steel trading company based in Shanghai, China. Baohui provides value-added products and services through close cooperation and development with customers, working together to create a stronger, lighter, and more sustainable world. Baohui has distribution and processing warehouses in various cities across China, with a diverse and comprehensive inventory of wear-resistant steel in stock, and also supplies the most cutting-edge products in the market.

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