Difference Between AR400 and AR500 Steel
What Does "AR" Mean? "AR" stands for abrasion-resistant, indicating steel designed to withstand wear and tear. Hardness Comparison AR400 Steel: Has a hardness of 400 Brinell. AR500 Steel: Features a higher hardness of 500 Brinell. Both are significantly harder than mild steel (130 Brinell) or structural steel (up to 200 Brinell). Applications Abrasion-Heavy Surfaces: ...