AR400 and AR500 are both abrasion-resistant steel grades, commonly used in applications where resistance to wear and abrasion is crucial. Here are the key differences between AR400 and AR500 steel:
Hardness: AR400 steel is designed to provide hardness of around 360-440 Brinell hardness number (BHN), while AR500 typically has a hardness of 460-544 BHN. This difference in hardness means AR500 steel is generally harder and more resistant to abrasion than AR400.
Applications:
Weldability: AR400 steel is relatively easier to weld compared to AR500 due to its lower hardness. AR500, being harder, requires more careful welding techniques and often preheating to avoid cracking during welding.
Cost: Generally, AR500 steel is more expensive than AR400 due to its higher hardness and more specialized applications.
Availability: Both AR400 and AR500 steel are readily available in various forms, including plates and sheets, from steel suppliers and manufacturers specializing in abrasion-resistant materials.
In summary, the choice between AR400 and AR500 depends on the specific application's requirements for abrasion resistance, hardness, weldability considerations, and budget constraints.
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