AR200

Introduction

AR200 Abrasion-Resistant Steel is a wear-resistant steel designed for industrial applications exposed to abrasion, friction, sliding wear and moderate impact. The designation AR200 generally refers to an abrasion-resistant steel with a nominal hardness of approximately 200 Brinell (HBW).

With its combination of moderate hardness, mechanical strength and toughness, AR200 is suitable for equipment where resistance to wear is required while maintaining relatively good fabrication characteristics.

It is commonly used in the construction, mining, quarrying, cement, recycling, agriculture, material handling and general industrial sectors.

The designation AR200 is generally a hardness-class or commercial designation rather than a single universally defined international steel grade. Therefore, the applicable standard, chemical composition, guaranteed hardness range and mechanical properties should be confirmed before procurement.

Key Features

The main characteristics of AR200 include:

• Abrasion resistance
• Nominal hardness around 200 HBW
• Good mechanical strength
• Good toughness
• Good resistance to moderate impact
• Good cutting capability
• Suitable formability under appropriate conditions
• Generally good weldability
• Suitable for moderately abrasive environments
• Mainly supplied as steel plates
• Cost-effective solution for moderate wear applications

Specifications

Hardness of AR200 Steel

The primary characteristic of AR200 is its nominal hardness.

Exact hardness limits must be confirmed by the manufacturer and documented on the material certificate.

It is important to note that AR200 does not necessarily represent one unique chemical composition. Different manufacturers may use different alloy designs to achieve a similar hardness class.

Chemical Composition of AR200 Steel

The chemical composition of AR200 varies depending on the manufacturer, applicable standard and product specification.

As an indicative reference, an abrasion-resistant steel in this hardness class may contain:

The exact chemistry should be verified through the Mill Test Certificate (MTC) supplied with the plate.

Mechanical Properties of AR200 Steel

Mechanical properties vary according to chemical composition, plate thickness and heat-treatment condition.

The typical characteristics required from an AR200-type steel include:

For critical applications, guaranteed values should be confirmed against the applicable material standard or purchasing specification.

Abrasion Resistance

The primary purpose of AR200 is to reduce wear in components exposed to abrasive materials.

It can provide resistance against different types of wear, including:

• Sliding abrasion
• Moderate impact abrasion
• Friction
• Particle erosion
• Material-handling wear

Actual service life depends on several factors, including:

• Hardness of the abrasive material
• Particle size
• Material velocity
• Contact pressure
• Impact intensity
• Plate thickness
• Equipment design
• Operating conditions

Impact Resistance

AR200 generally provides a useful combination of moderate hardness and toughness.

Compared with very high-hardness wear plates, an AR200-class material may be preferred where the equipment also requires good impact resistance and relatively easy fabrication.

For applications involving extremely severe impact and abrasion, a higher-hardness or specially engineered wear-resistant grade may be more appropriate.

AR200 plates can generally be processed using several cutting methods:

• Plasma cutting
• Laser cutting
• Oxy-fuel cutting
• Mechanical cutting

The appropriate method depends on plate thickness, chemical composition and dimensional requirements.

For thermal cutting, process parameters should be controlled to minimize excessive heat-affected zones and distortion.

Welding of AR200 Steel

AR200 is generally weldable, although welding parameters should be selected according to the actual chemical composition and plate thickness.

Common welding processes include:

• Arc welding
• MIG/MAG welding
• FCAW
• Shielded metal arc welding
• TIG welding for selected applications

Depending on carbon equivalent, thickness and composition, preheating may be required to reduce the risk of hydrogen-induced cracking.

Welding consumables should be selected according to the base material, thickness, welding procedure and service requirements.

Forming and Bending

AR200 steel can generally be formed and bent under suitable conditions.

Important factors include:

• Plate thickness
• Hardness
• Bending radius
• Rolling direction
• Tooling
• Forming temperature

An appropriate inside bending radius should be maintained to reduce the risk of cracking.

Cold forming requirements should always be checked against the manufacturer’s recommendations.

Machining

AR200 can be machined using suitable cutting tools and optimized machining parameters.

Typical operations include:

• Drilling
• Milling
• Turning
• Sawing
• Chamfering

Carbide or other wear-resistant tooling may be preferred depending on the actual hardness of the material.

Cutting speeds, feeds and cooling conditions should be selected to control tool wear and excessive heat generation.

Surface Finishes

AR200 plates may be supplied with different surface conditions, including:

• As-rolled surface
• Pickled surface
• Shot-blasted surface
• Surface prepared for painting
• Protective coated surface according to specification

Additional surface protection may be applied where atmospheric corrosion is also a concern.

Available Dimensions

AR200 plates can be supplied in different dimensions depending on manufacturer capabilities.

Thicknesses

• Thin plates
• Medium-thickness plates
• Heavy plates
• Cut-to-size plates

Formats

• Standard plate sizes
• Cut-to-size plates
• CNC-cut components
• Profile-cut parts
• Components manufactured according to drawings

Available thicknesses, dimensions and tolerances should be confirmed at the time of enquiry.

Applications

AR200 is designed for equipment exposed to moderate to significant wear and abrasion.

Construction and Earthmoving

• Buckets
• Dump bodies
• Earthmoving equipment
• Wear components
• Protective liners

Mining and Quarrying

• Chutes
• Hoppers
• Conveyor components
• Wear liners
• Material-handling equipment
• Ore-processing equipment

Cement and Building Materials

• Hoppers
• Chutes
• Crushers
• Material-handling equipment
• Wear plates

Recycling

• Crushers
• Conveyors
• Dump bodies
• Waste-processing equipment
• Wear liners

Agriculture

• Agricultural machinery
• Dump bodies
• Machine components
• Soil-contact components

General Industry

• Wear plates
• Equipment liners
• Abrasion-resistant guards
• Material-handling components
• Protective plates

AR200 vs AR400

The choice between AR200 and AR400 mainly depends on the severity of abrasion and the fabrication characteristics required.

AR200 may be preferred where fabrication, forming and welding are important in addition to wear resistance.

Quality and Certification

Depending on project requirements, AR200 steel can be supplied with:

• Mill Test Certificate (MTC)
• Chemical analysis
• Brinell hardness test results
• Mechanical test results
• Dimensional inspection report
• Certificate of Conformity
• Inspection report
• Material traceability documentation
• Third-party inspection when specified

The applicable standard or purchasing specification should be clearly defined before procurement because AR200 can represent a hardness class rather than a single standardized chemical grade.

Why Choose AR200 Steel?

AR200 can be considered when an application requires:

• Good abrasion resistance
• Moderate hardness
• Good toughness
• Good formability
• Good weldability
• Relatively easy fabrication
• Cost-effective protection against moderate wear
• Extended service life of industrial equipment

Emirerri Steel supplies abrasion-resistant steel plates for construction, mining, quarrying, cement, recycling, material handling and general industrial applications in Tunisia, North Africa and international markets.

Conclusion

AR200 Abrasion-Resistant Steel is a wear-resistant steel class characterized by a nominal hardness of approximately 200 HBW. It provides a practical balance between abrasion resistance, toughness, weldability, formability and fabrication performance.

It is particularly suitable for moderate-abrasion applications such as hoppers, chutes, conveyors, dump bodies, agricultural machinery, material-handling equipment and industrial wear liners.

Before procurement, it is essential to confirm the applicable standard, chemical composition, guaranteed hardness range, mechanical properties, plate thickness, heat-treatment condition and material certification requirements.