AR500

Introduction

AR500 Abrasion Resistant Steel is a high-hardness wear-resistant steel designed to provide excellent resistance against severe abrasion, impact and mechanical wear. The designation AR500 generally refers to a steel with a nominal hardness of approximately 500 HBW, although the exact hardness range depends on the manufacturer, applicable specification, product thickness and delivery condition.

AR500 steel plates are widely used in industries where components are exposed to aggressive sliding abrasion, impact loading and continuous material handling. Typical applications include mining, quarrying, construction, cement plants, recycling, aggregate processing, bulk material handling and heavy-duty machinery.

The combination of high hardness, strength and reasonable toughness makes AR500 suitable for components that require extended service life under demanding operating conditions.

Key Features

• Nominal hardness of approximately 500 HBW

• Excellent resistance to abrasive wear

• High surface hardness

• Good resistance to impact and mechanical wear

• Suitable for heavy-duty industrial applications

• Extended component service life

• Good strength-to-weight performance

• Suitable for fabrication of wear components

• Can be welded using appropriate procedures

• Can be flame cut, plasma cut or laser cut depending on thickness and manufacturer recommendations

• Suitable for demanding mining and material-handling applications

Specifications

Hardness of AR500 Steel

The defining characteristic of AR500 steel is its high hardness.

A nominal hardness of approximately 500 HBW provides strong resistance against abrasive particles, sliding wear and material impact. The actual hardness range should always be confirmed against the manufacturer’s specification and plate thickness.

An indicative commercial hardness range may be around 470–530 HBW, but this should not be treated as a universal specification.

Hardness can vary according to:

• Plate thickness

• Heat-treatment condition

• Chemical composition

• Manufacturing process

• Applicable standard

• Testing location

• Manufacturer’s acceptance criteria

AR500 Chemical Composition

AR500 does not have one universally fixed chemical composition. Manufacturers typically use a controlled alloy design to achieve the required hardness, toughness and wear resistance.

Typical alloying elements may include:

For procurement and engineering purposes, the exact chemical composition should be taken from the applicable product specification and MTC rather than from a generic AR500 composition table.

AR500 Mechanical Properties 

Typical performance characteristics include:

Because AR500 is a hardness-class designation, tensile strength, yield strength and elongation should be confirmed from the specific manufacturer’s datasheet or MTC.

AR500 Physical Properties

The physical properties of AR500 are generally similar to other low-alloy steels, although exact values depend on composition and heat-treatment condition.

Values should be confirmed for the specific material supplied where thermal or structural calculations are critical.

AR500 vs AR400 Steel

AR500 provides greater hardness than AR400 and is generally selected where more severe abrasion resistance is required.

AR500 should not automatically replace AR400 in every application. Selection depends on abrasion type, impact loading, plate thickness, fabrication requirements and required service life.

AR500 vs AR450 Steel

AR500 is harder than AR450 and can provide greater resistance to abrasive wear. AR450 may offer a useful balance between wear resistance, toughness and fabrication.

Available AR500 Products

Emirerri Steel can supply AR500 and comparable high-hardness abrasion-resistant steel products in different forms, subject to availability and specification.

Common products include:

• AR500 Abrasion Resistant Steel Plates

• AR500 Wear Plates

• AR500 Steel Sheets

• Cut-to-Size AR500 Plates

• CNC-Cut Wear Plates

• Fabricated Wear Components

• Hopper Liners

• Chute Liners

• Bucket Liners

• Crusher Wear Components

• Mining Equipment Wear Plates

Availability of dimensions, thicknesses and cut-to-size services depends on the required specification and supply program.

Dimensions

AR500 plates are available in various thicknesses and dimensions according to manufacturer capability and project requirements.

Common supply options may include:

• Standard-size plates

• Heavy plates

• Cut-to-size plates

• CNC-cut components

• Flame-cut components

• Plasma-cut components

For critical applications, plate thickness, hardness uniformity and dimensional tolerances should be confirmed before fabrication.

Welding 

AR500 can be welded, but welding requires greater control than conventional carbon steel because of its high hardness and alloy content.

Important considerations include:

• Preheating where required

• Controlled interpass temperature

• Suitable low-hydrogen consumables

• Proper joint preparation

• Controlled heat input

• Hydrogen control

• Appropriate cooling conditions

• Avoidance of excessive heat-affected-zone softening

The welding procedure should be developed according to the manufacturer’s recommendations, plate thickness and applicable welding code.

For critical structures, a qualified Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR) should be considered.

Cutting

AR500 plates can generally be cut using suitable thermal or mechanical cutting processes.

Common methods include:

Flame Cutting

Suitable for many heavy plate applications, provided heat input and cutting parameters are controlled.

Plasma Cutting

Provides efficient cutting for many plate thicknesses and can be suitable for complex profiles.

Laser Cutting

May be suitable for thinner AR500 material, depending on plate thickness and equipment capability.

Mechanical Cutting

Can be used in suitable thickness ranges, although the high hardness may increase tool wear and cutting forces.

Cutting procedures should follow the manufacturer’s recommendations to minimize excessive heat-affected zones and dimensional distortion.

Machining 

Machining AR500 is more challenging than machining conventional mild steel because of its high hardness.

Recommended practices may include:

• Carbide tooling

• Appropriate cutting speeds and feeds

• Rigid machine setup

• Adequate tool cooling where appropriate

• Controlled depth of cut

• Proper tool geometry

• Avoiding unnecessary work hardening

The exact machining parameters should be established according to plate hardness, thickness, machine capability and tooling manufacturer recommendations.

Forming 

Due to its high hardness, AR500 has more limited cold-forming capability than conventional structural steel.

When bending AR500:

• Use suitable bending equipment

• Maintain adequate inside bend radius

• Avoid sharp bends

• Control plate temperature where applicable

• Follow the manufacturer’s minimum bend-radius recommendations

• Inspect formed areas for cracking

Bending limits can vary significantly with thickness and material condition.

Heat Treatment

AR500 products are commonly supplied in a heat-treated condition designed to achieve their specified hardness and wear resistance.

Depending on the manufacturer’s production route, the material may involve:

• Austenitizing

• Quenching

• Tempering

Additional heat treatment after delivery should not be performed without considering its effect on hardness, toughness and wear performance.

Uncontrolled heating can reduce the intended hardness of the material.

Surface Finishes

AR500 steel plates may be supplied with different surface conditions depending on the manufacturer and application.

Possible finishes include:

• Mill finish

• Shot-blasted surface

• Descaled surface

• Primed surface

• Cut and prepared surface

Surface treatment should be selected according to the intended application, storage conditions and fabrication requirements.

Corrosion Resistance

AR500 is primarily designed for abrasion resistance, not corrosion resistance.

Its resistance to atmospheric or process corrosion is generally comparable to conventional low-alloy steels rather than stainless steels.

Where corrosion and abrasion occur simultaneously, additional protection may be required, such as:

• Protective coatings

• Paint systems

• Surface treatments

• Corrosion-resistant liners

• Appropriate material selection

For aggressive chemical environments, a corrosion-resistant alloy may be more appropriate.

Applications 

AR500 is widely used for demanding wear applications across multiple industries.

Mining

• Dump truck bodies
• Excavator components
• Chutes
• Hoppers
• Conveyor components
• Crusher liners
• Screen components
• Bucket liners

Quarrying & Aggregates

• Crusher liners
• Transfer chutes
• Feeders
• Hoppers
• Wear plates
• Conveyor systems

Construction

• Excavator buckets
• Loader buckets
• Wear blades
• Heavy equipment components
• Material-handling systems

Cement Industry

• Raw material handling equipment
• Chutes
• Hoppers
• Mill components
• Conveyor liners
• Wear-resistant panels

Recycling

• Shredder components
• Hopper liners
• Sorting equipment
• Material transfer systems

Bulk Material Handling

• Coal handling systems
• Ore handling equipment
• Sand and gravel systems
• Conveyor transfer points
• Storage hoppers

Advantages 

The major advantages of AR500 include:

• Very high abrasion resistance
• High hardness
• Excellent wear performance
• Extended service life
• Reduced frequency of component replacement
• Suitable for severe-duty applications
• High strength
• Good performance under abrasive conditions
• Suitable for mining and heavy industrial equipment

Limitations 

AR500 should be selected according to the actual operating environment.

Potential limitations include:

• More difficult machining
• Limited cold formability
• More demanding welding procedures
• Potential heat-affected-zone softening
• Lower formability than lower-hardness AR grades
• Hardness may vary with thickness and manufacturer
• Not primarily designed for corrosion resistance

A higher hardness grade is not automatically the best choice for every wear application. Impact, abrasion mechanism, toughness and fabrication requirements should all be evaluated.

Quality and Certification

For industrial applications, AR500 steel should be supplied with appropriate quality documentation.

Depending on the project requirements, documentation may include:

• Mill Test Certificate (MTC)
• Chemical composition
• Hardness test results
• Mechanical test results where specified
• Heat-treatment information
• Dimensional inspection report
• Material traceability
• EN 10204 3.1 certificate where applicable
• Third-party inspection documentation when required

The exact certification depends on the manufacturer’s specification and customer requirements.

Why Choose AR500 Abrasion Resistant Steel?

AR500 is a strong choice for applications where severe abrasion, high material impact and extended wear life are major concerns.

Its approximately 500 HBW hardness class provides a high level of resistance to abrasive wear while maintaining the strength required for heavy industrial components.

Correct grade selection should nevertheless consider the actual wear mechanism, impact severity, plate thickness, fabrication process and required service life.

AR500 Abrasion Resistant Steel Supplier

Emirerri Steel supplies abrasion-resistant steel products for industrial applications across North Africa and international markets. AR500 plates can be sourced for mining, quarrying, cement, construction, material handling, recycling and heavy-equipment applications, subject to specification and availability.

We can support requirements for AR500 steel plates, wear plates, cut-to-size plates and fabricated wear components, with material documentation and inspection requirements coordinated according to project needs.

Conclusion

AR500 Abrasion Resistant Steel is a high-hardness wear-resistant steel designed for severe abrasion and demanding industrial service. With a nominal hardness of approximately 500 HBW, it provides excellent resistance to abrasive wear and can significantly extend the operating life of components used in mining, quarrying, cement, construction, recycling and bulk material handling.

Because AR500 is generally a commercial hardness-class designation rather than one universally fixed chemical grade, the exact chemical composition, mechanical properties, hardness range, dimensions and certification should always be verified against the manufacturer’s specification and MTC.