AR450
AR450 is an abrasion resistant steel with a typical hardness range of 420–480 BHN. Rather than being defined by a specific chemistry, AR450 is primarily classified by its hardness, with chemistry and production methods varying by mill. Compared with AR400, its higher hardness provides greater resistance to wear and maintains toughness needed for many demanding applications.
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AR450 Mechanical Properties
Property
specification
Brinell Hardness (BHN)
420-480 BHN
Yield Strength (Typical)
178-181 ksi (1225-1250 MPa)
Tensile Strength (Typical)
188-210 ksi (1300-1450 MPa)
Valast® 450 VS. AR450
While both traditional AR450 and Valast® AR450 offer 450 Brinell hardness for dependable abrasion resistance, Valast® is built to make production easier and more efficient. It delivers the same wear life as traditional AR450, but takes the lead with tighter dimensional control, improved weldability, and a smoother, more uniform surface that forms cleanly and consistently. Produced on advanced continuous casting and direct quench lines, Valast® AR450 ensures uniform strength and flatness across every plate. That precision translates into faster setup, easier fabrication, and reduced rework to help manufacturers hit performance targets while lowering total production costs.
