AR450 Steel Plate plate is a through-hardened, abrasion resistant material designed to provide enhanced hardness, toughness, and wear performance in demanding environments. Engineered for durability, AR450F steel is often used in applications where strength, structural integrity, and resistance to gouging or scraping are critical.
Compared to AR400, AR450F offers greater surface hardness while still maintaining good formability and weldability. This makes it a versatile solution for manufacturers and fabricators looking to extend equipment life, reduce downtime, and minimize replacement costs.
Available in thicknesses up to 0.500”, widths up to 60” and lengths up to 288”.
Common Applications for AR450F Steel Plate
- Loader and excavator bucket liners
- Dump body and truck bed liners
- Material handling chutes and hoppers
- Asphalt and concrete mixing equipment
- Agricultural and forestry inplements
- Mining equipments such as screens and crushers
Why Choose Abrasion Resistant AR450 Steel Plate
Customers choose abrasion resistant AR450 steel plate when they need a balance of hardness and toughness in harsh working conditions. Its uniform properties and consistent performance make AR450F an ideal material for parts exposed to wear from aggregates, soil, ore, or debris.
If you’re looking for AR450F steel that meets exacting quality standards and delivers on strength, CMC offers plate products that support your operational demands.
Mechanical Properties
| Surface Hardness | 425 - 475 HBW (aim 450 HBW) |
|---|---|
| Yield Strength | 181 ksi (1248 MPa) |
| Tensile Strength | 215 ksi (1482 MPa) |
| Charpy Impacts (@ -40F) | 37 ft-lbs (50.2 J) longitudinal, 25 ft-lbs (34.0 J) transverse |
| Charpy Impacts Minimum (@ -40° F) | 20 ft-lbs (27.12 J) longitudinal |
| Bend Radius | 0.315” (8 mm) or less use 3.5T (transverse), 3T (longitudinal). Thicker than 0.315” (8 mm) use 4T (transverse), 3.5T (longitudinal). Larger bend radius recommended for thicker plates. |
Typical mechanical testing values other than Brinell hardness listed for information only and are not performed unless specified at time of order. Charpy Impact specimens, when performed, are subsize on thicknesses < 0.375”. Charpy Impact values listed are adjusted to full size equivalent. Hardness tested on each plate, but not reported. 90% through hardness.
Dimensional Tolerances
| Flatness |
Flatness tolerances meet 1/2 of ASTM A6, Table 14, latest revision. |
 |
| Thickness | +/- 0.012” to nominal thickness | |
| Length and Width | Length and width tolerances meet ASTM A6, latest revision |
Chemical Composition
| C | Mn | P | S | Si | Cu | Ni | Cr | Mo | |
|---|---|---|---|---|---|---|---|---|---|
| Max | 0.24 | 1.60 | 0.020 | 0.015 | 0.34 | 0.25 | 0.45 | 0.65 | 0.30 |
| CEV (typical): | 0.58 | CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15 | |||||||
| CET (typical): | 0.40 | CET = C + (Mn+Mo)/10 + (Cr+Cu)/20 + Ni/40 | |||||||
| CEq (typical): | 0.39 | CEq = C + Si/25 + (Mn+Cu)/16 + Ni/40 + Cr/10 + Mo/15 + V/10 | |||||||
Fabrication, Bending, Post-Delivery Heating and Welding
| Bending |
Free bending should be performed utilizing maximum allowable bend radius to prevent cracking. TruWEAR AR450F plates 0.315” (8 mm) thick and less can be bent using a transverse radius of 3.5T and a longitudinal radius of 3T. TruWEAR AR450F plates thicker than 0.315” (8 mm) can be bent using a transverse radius of 4T and a longitudinal radius of 3.5T. Larger bend radius is recommended for thicker plates. Transverse radius is the bend line parallel to rolling direction. |
| Post-Delivery Heating | TruWEAR AR450F plate achieves its properties through quenching and tempering processes. Heating in fabrication (such as post-weld stress relieving) or in service must not exceed 400° F without risk of lowering the strength and hardness of the material. |
| Welding | TruWEAR AR450F plate can be welded by conventional processes such as SMAW, SAW and GMAW, provided that the weld procedures used are suitable for this grade and design of the welded structure, using low hydrogen conditions. |
Standard Delivery Conditions
| Surface Finish |
Shot blasting and rust preventative applications are available. Please inquire. |
| Test Reports | Supplied with shipment for each production lot in the shipment. Reports include product description, heat number, chemical analysis and Brinell hardness value. |
QMS #: TD-CUS-416 | Last Revision: 10/01/2023