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Is AR400 or AR500 better for wear liners?
Short answer
AR500 is better for flat liners in severe sliding abrasion, because its higher hardness (about 470–540 HBW) slows wear. AR400 (about 360–440 HBW) is better where plate must be formed, welded or must absorb impact, such as truck bodies, buckets and formed chute sections.
AR400 vs AR500 at a glance
| Property | AR400 | AR500 |
|---|---|---|
| UNS | — | — |
| EN | — | — |
| Family | Abrasion-Resistant & Wear Plates | Abrasion-Resistant & Wear Plates |
| Tensile strength | — | — |
| Yield strength | — | — |
| PREN | — | — |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
| Magnetic | — | — |
| Typical use | Dump truck bodies and liners | Crusher liners and wear plates |
Which should you choose?
There's no universal "winner": the right choice depends on service conditions, codes and cost. Share your conditions with us for a recommendation.
Cost per hour, not per tonne
Fabrication limits
Bend radii, preheat and cutting heat input all become stricter with hardness. See the wear plate selection guide and the wear plate range.
Products in both grades
Related guides, comparisons and articles
Articles
Frequently asked questions
Can AR500 be welded?
Yes, with low-hydrogen consumables, preheat on heavier sections and low heat input to keep the heat-affected zone hard.
Do these plates resist heat?
No. Both lose hardness if heated above their tempering temperature, so they are not used in hot zones.
What is the main difference between AR400 and AR500?
AR500 is harder (≈470–540 against ≈360–440 HBW), so it wears more slowly in sliding abrasion. AR400 is easier to bend, cut and weld, and it's tougher under impact.
When should I choose AR400?
Formed liners, truck bodies, buckets.
When should I choose AR500?
Flat liners in severe abrasion.
Can AR400 replace AR500?
Only when the design, code and specification allow it. Strength, corrosion resistance and temperature limits differ, so substitution must be approved by the design authority.