The hardness range of Wear Resistant Steel Plate 400 typically falls between 370-430HBW, depending on the specific type of Wear Resistant Steel Plate and the manufacturer. For instance, the hardness range of HARDOX 400 Wear Resistant Steel is 370-430HBW, whereas the range for NM400 is 360-420HBW. These figures indicate that the hardness values of Wear Resistant Steel Plate 400 exhibit a certain degree of fluctuation, primarily due to process variations during production and minor changes in material composition. Additionally, HARDOX 400 Wear Resistant Steel is widely used in wear-resistant applications, thanks to its excellent cold bending properties, high strength, and toughness.