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Product and Application

TruWEAR AR450F plate provides excellent properties in abrasion resistance, hardness and toughness. This quenched and tempered product excels in downstream fabrication processes like bending, laser cutting and plasma cutting. This product is used widely in mining, asphalt, concrete, aggregate, dump bodies, truck trailer and various other industries.
Available in thicknesses up to 0.500”, widths up to 60” and lengths up to 288”.

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 tolerances meet 1/2 of ASTM A6, Table 14, latest revision.
TruFLAT tolerance of 1/4 ASTM A6 for 0.300” and thinner.

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


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
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