What Is AR 550 Wear Resistant Steel Plate?
AR 550 steel plate is a high-hardness, abrasion-resistant steel with a nominal hardness of 550 BHN (±25). It is designed for extreme wear, impact, and abrasion conditions, making it ideal for mining, crushing, quarrying, cement, and heavy industrial applications.
We specialize in the production and global supply of EN 10051 AR 550 Wear Resistant Steel Plates, BIS 550 Wear Resistant Steel Plates, 550 BHN Abrasion Resistant Steel Plates, and High Tensile Raex 550 Steel Plates.
AR 550 Abrasion Resistant Steel Plate Specifications
Dimensional Range
| Parameter | Specification |
|---|---|
| Thickness | 8 – 65 mm |
| Width | Up to 2900 mm |
| Length | Up to 14,630 mm |
| Production | Hot Rolled (HR) / Cold Rolled (CR) |
| Standards | EN 10051, EN 10029 |
| Heat Treatment | N, Q+T |
| Surface Coating | EP, PE, HDP, SMP, PVDF |
Material Grades
AR 550
HB 550 Steel Plate
AR 550 Abrasion Resistant Steel Plates
AR 550 Wear Resistant Plates
Chemical Composition of AR 550 Plate (Max %)
| Plate Thickness (mm) | C | Si | Mn | Cr | Ni | Mo | B |
|---|---|---|---|---|---|---|---|
| 10 – 50 | 0.37 | 0.50 | 1.30 | 1.14 | 1.40 | 0.60 | 0.004 |
Mechanical Properties of AR 550 Plates
| Property | Value |
|---|---|
| Hardness (HBW) | 550 ± 25 |
| Impact Toughness | 30 J at −40°C |
| Yield Strength | ≥ 1400 N/mm² (≈205 ksi) |
| Tensile Strength | ≥ 1700 N/mm² |
| Elongation | 7% |
| Carbon Equivalent | CEV 0.72 / CET 0.48 |
Carbon Equivalent
| Thickness (mm) | Max CET (CEV) | Typical CET (CEV) |
|---|---|---|
| 8 – 65 | 0.51 (0.76) | 0.48 (0.72) |
AR 550 Hardness Plate Brand Comparison
| Brand | Country of Origin | Hardness Range (BHN) |
|---|---|---|
| AR 550 | Sweden | 525 – 575 |
Processing Capabilities for AR 550 Plates
Most standard fabrication processes can be performed on AR 550 plates, including:
Cutting
Forming (controlled)
Drilling & Machining
Grinding
Mechanical & Impact Testing
Available Standard Plate Sizes (Inches)
| Thickness Options |
|---|
| 1/8", 3/16", 1/4", 3/8", 1/2" |
| 5/8", 3/4", 1", 1-1/4" |
| 1-1/2", 2", 2-1/2", 3", 4" |
Notes:
1/8" thickness available only in 60" × 120"
3/16" thickness available in 48" × 144" and 96" × 144"
AR 550 Plates – Ready Stock Dimensions (mm)
| Product | Thickness | Width | Length |
|---|---|---|---|
| AR 550 Resistant Steel Plates | 4–16 | 2000 | 6000 |
| AR 550 Clad Plate | 6–8 | 2500 | 6000 |
| AR 550 Hot Rolled Plate | 8–10 | 2000 | 6000 |
| AR 550 Wear Plate | 12–25 | 2000 | 6000 |
| Stone Crusher Liner Plates | 20 | 2000 | 6000 |
| Dillidur 550 Equivalent | 32–50 | 2000 | 6000 |
| Rolling AR 550 Wear Plate | 60 | 1800 | 3400 |
What is AR550 rated for?
AR550 steel stands as a pinnacle of durability and resilience in the world of shooting range targets. It's a high-strength, abrasion-resistant steel alloy with a Brinell hardness rating of 550, indicating exceptional resistance to wear and deformation
What's the difference between AR500 and AR550 steel?
Higher hardness: AR550 steel measures closer to 550 BHN, offering better resistance to deformation and pitting. Improved performance with high-velocity rounds: AR550 withstands repeated impacts from 5.56 and . 308 much better than AR500.
What is the hardness of AR550 steel?
With a hardness range of 530-570 BHN, AR550 excels in resisting sliding abrasion.
What can AR550 stop?
Infidel says this plate is made from the 1/4″ abrasion-resistant Brinell Hardness 550 steel (AR550) designed to armor military vehicles. A 1/4″ polymer coating surrounds the metal to capture bullet fragments. The claim is that AR550 will stop "5.56, . 223, 7.62, 30-06