Chemical Composition Control Characteristics of HARDOX 400 Wear Plate

HARDOX 400 wear plate achieves its outstanding combination of hardness, toughness, and wear resistance through a precisely controlled chemical composition. As a high-strength quenched and tempered steel, HARDOX 400 relies on optimized alloying elements that work together to deliver stable mechanical performance, even under heavy abrasion and impact conditions.
The HARDOX 400 wear plate key elements include carbon, manganese, chromium, nickel, and boron. Carbon content is carefully balanced to provide high hardness while maintaining adequate toughness to prevent cracking during service. Manganese enhances hardenability and contributes to improved strength after heat treatment. Chromium and nickel further increase resistance to abrasion and corrosion, ensuring longer service life in harsh working environments such as mining, construction, and heavy machinery.
Boron is added in small but highly effective amounts to significantly improve hardenability, allowing the steel to achieve uniform hardness throughout the HARDOX 400 wear plate thickness. At the same time, impurities such as sulfur and phosphorus are strictly limited to prevent brittleness and ensure reliable structural integrity. The steel is produced with tight metallurgical control to guarantee consistent chemical composition from batch to batch, which is essential for predictable performance and machining behavior.
Through this controlled alloy design, HARDOX 400 wear plate maintains a Brinell hardness around 400 HBW while still offering excellent impact resistance. This balance of hardness and toughness—enabled by precise chemical composition control—is what sets HARDOX 400 wear plate apart from conventional wear-resistant steels, making it a preferred material for demanding industrial applications.