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:
- Used in environments like the bottom of dumper trucks, where constant wear occurs.
- Shooting Targets:
- Commonly used for steel targets due to its high hardness, which minimizes pitting.
- Armor Applications:
- Hardness ranges from 350 to 600+ Brinell for armor-grade steel. These are specially engineered to combine hardness with toughness.
Summary
AR400 and AR500 differ mainly in hardness, with AR500 offering greater durability for demanding applications. Both are ideal for uses requiring abrasion resistance, but specific needs should guide the choice.
