AR400 and AR450 are both abrasion-resistant steels, and the main difference lies in their respective hardness levels. These steels are designed to provide resistance to wear and abrasion in various industrial applications. Here are the key distinctions between AR400 and AR450 steel plates:
Hardness:
AR400: This type of steel typically has a hardness range of 360-440 BHN (Brinell Hardness Number).
AR450: AR450 steel is harder than AR400, with a hardness range of 420-480 BHN.
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Applications:
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AR400: Commonly used in applications where moderate wear resistance is required, such as mining equipment, dump truck bodies, and material handling.
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AR450: Suited for applications that demand a higher level of abrasion resistance than what AR400 provides. This may include heavy-duty construction equipment, crushers, and other equipment subjected to severe wear and abrasion.
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Performance:
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AR400: Offers good abrasion resistance and is suitable for applications where impact resistance is not the primary concern.
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AR450: Provides a higher level of hardness, resulting in improved abrasion resistance, making it more suitable for applications where both abrasion and impact resistance are important.
Choosing between AR400 and AR450 depends on the specific requirements of the application. If higher abrasion resistance is needed, especially in situations where impacts are a concern, AR450 may be a more appropriate choice. The decision should be based on factors such as the severity of wear, potential impacts, and overall durability needs for the specific application. Its always recommended to consult with steel suppliers or metallurgical experts to ensure the selection meets the desired performance criteria.