language

Home

Products

High Hardness Wear Plate

High Hardness Wear Plate represents the extreme end of abrasion-resistant steel technology. Designed for severe wear environments,

Keywords:

High Hardness Wear Plate

Category:

Hardfacing Wear-resistant Plate

Inquiry Now

Send E-mail

File Download

sales1@tedaganghua.com

+86 22 86896631、+86 15822676888

Product Details

High Hardness Wear Plate: Understanding 600 BHN-Class Wear Steel Selection, Performance & Fabrication Limits

High Hardness Wear Plate represents the extreme end of abrasion-resistant steel technology. Designed for severe wear environments, these materials combine very high surface hardness with sufficient toughness to survive aggressive abrasion, impact, and material flow conditions.

For engineers selecting wear-resistant materials, hardness alone is not the only factor. A plate with extremely high hardness may resist cutting wear effectively, but without proper toughness it can crack under impact. Therefore, the correct selection requires balancing:

Hardness level (HBW / HRC / HV).
Wear mechanism (sliding abrasion, impact, gouging).
Fabrication requirements (cutting, drilling, bending, welding).
Total lifecycle cost.

Modern high hardness wear plates include both:

Chromium Carbide Overlay (CCO) Plates with extremely hard carbide reinforcement.
Quenched & Tempered Abrasion Resistant Steel (AR Steel) such as AR400, AR500, and 600 BHN-class steels.

Teda Ganghua supplies customized high hardness wear-resistant steel solutions for mining, cement, steel, recycling, and heavy equipment industries, including material selection, cutting, and fabrication support.

Explore Teda Ganghua High Hardness Wear Plate Solutions

1. The Hardness Scale: Converting HBW, HRC, and HV

Wear plate hardness is commonly expressed using three different measurement systems: Brinell Hardness (HBW), Rockwell Hardness (HRC), and Vickers Hardness (HV). Understanding their relationship helps buyers compare different wear-resistant materials.

1.1 HBW — The Common Standard for Wear Plates

Most abrasion-resistant steel plates use Brinell hardness because it provides reliable measurement for thick plates.

Typical grades:

Grade	Typical Hardness	Approximate Equivalent
AR400 / NM400	360-440 HBW	≈ HRC 38-43
AR500 / NM500	470-530 HBW	≈ HRC 48-52
600 BHN Wear Plate	550-650 HBW	≈ HRC 55-60
CCO Wear Layer	Not directly comparable	Matrix HRC 57-65 + carbide HV 1200-1800

1.2 HRC — High Hardness Range Measurement

Rockwell C hardness is usually applied to hardened steels. When hardness exceeds approximately HRC 55, the material enters the ultra-hard wear-resistant category.

HRC 40-45: Medium abrasion resistance.
HRC 50-55: Heavy wear applications.
HRC 55-60+: Extreme abrasion conditions.

1.3 HV — Measuring Carbide Hardness

Vickers hardness is often used for microscopic carbide analysis.

For comparison:

Material Phase	Hardness	Wear Role
Steel Matrix	HV 500-700	Supports carbide particles
Cr₇C₃ Carbide	HV 1200-1800	Resists abrasive cutting
NbC / VC Carbide	HV 2400-3000	Extreme wear reinforcement

2. Material Showdown: CCO vs Quenched & Tempered (AR) Steel

High hardness wear applications usually involve two major material choices:

CCO Plate: a composite structure with a hard carbide overlay layer.
AR Steel: a homogeneous hardened steel plate strengthened through quenching and tempering.

Performance Factor	CCO Plate	AR500 / 600 BHN Steel
Hardness Source	Carbide reinforcement	Martensitic steel structure
Surface Hardness	HRC 57-65 + carbide HV	HRC 50-60
Abrasion Resistance	★★★★★	★★★★
Impact Resistance	★★★★	★★★★★
Machining	Limited to backing layer	Better overall machinability
Repair Welding	Requires special procedures	Relatively easier
Best Application	Extreme sliding abrasion	Mixed abrasion + impact

When Should You Choose CCO?

CCO is preferred when wear is dominated by continuous abrasive cutting:

Mining chutes.
Cement powder conveying systems.
Coal handling equipment.
High-speed material flow areas.

When Should You Choose 600 BHN-Class AR Steel?

Ultra-hard AR steel is better when the equipment requires:

Structural strength.
Impact resistance.
Mechanical fastening.
General fabrication after delivery.

3. Wear Mechanisms: Sliding Abrasion Needs HRC 60+; Impact Needs Toughness

The highest hardness material is not always the best choice. Wear mechanism determines the ideal material.

3.1 Sliding Abrasion

Sliding abrasion occurs when hard particles continuously scrape across the surface.

Examples:

Sand transportation.
Mineral powder handling.
Cement raw material conveying.

3.2 Impact Wear

Impact wear occurs when large materials repeatedly hit the plate surface.

Examples:

Crusher liners.
Excavator buckets.
Rock handling equipment.

In impact applications, excessive hardness can reduce toughness and increase cracking risk.

Wear Type	Main Requirement	Recommended Material
Fine particle sliding	Maximum hardness	CCO / Complex CCO
Heavy impact	Toughness	AR500 / Mn13
Mixed abrasion + impact	Balance	AR450-AR500
High temperature abrasion	Heat stability	Complex CCO

4. Fabrication Constraints: Can You Bend, Drill, or Weld 600 BHN Plates?

A common misunderstanding is that higher hardness automatically means better performance. In reality, high hardness creates fabrication challenges.

4.1 Cutting High Hardness Wear Plates

Recommended cutting methods:

Laser cutting: suitable for thinner high hardness plates with controlled heat input.
Plasma cutting: commonly used for medium and thick plates.
Flame cutting: suitable for heavy thickness but requires heat control.

4.2 Drilling 600 BHN Wear Steel

Standard drills wear quickly because of the hardened martensitic structure.

Recommended practices:

Use carbide or coated drilling tools.
Reduce cutting speed.
Apply proper cooling.
Avoid excessive feed pressure.

4.3 Bending Limitations

600 BHN-class plates require large bending radius due to their hardness.

Material	Typical Minimum Bend Radius	Difficulty
AR400	R ≥ 2t	Moderate
AR500	R ≥ 3t	Difficult
600 BHN Steel	R ≥ 4-5t	Very Difficult
CCO Plate	Usually not cold bent	Requires forming before overlay

4.4 Welding Considerations

High hardness wear plates can be welded, but improper procedures may cause hydrogen cracking.

Recommended welding practices:

Preheating according to thickness and carbon equivalent.
Low hydrogen welding consumables.
Controlled heat input.
Slow cooling after welding.

How to Select High Hardness Wear Plate for Your Equipment?

Application	Recommended Material
Mining chute liner	Complex CCO / AR500
Crusher bucket	AR450-AR500
Cement powder conveyor	CCO Plate
Heavy loading truck body	600 BHN-class AR Steel
High-temperature wear	Complex Chromium Carbide Overlay

Why Choose Teda Ganghua High Hardness Wear Plate?

Teda Ganghua provides complete wear-resistant steel solutions for demanding industrial applications.

AR400, AR450, AR500 and high hardness wear steel supply.
Chromium Carbide Overlay Plate and complex alloy overlay solutions.
Customized cutting, shaping, and fabrication services.
Technical support for wear mechanism analysis and material selection.
Export experience supporting global mining, cement, steel, and energy customers.

Contact Teda Ganghua for High Hardness Wear Plate Selection & Fabrication Support

FAQ

Is a 600 BHN wear plate always better than AR500?

No. A 600 BHN plate provides higher abrasion resistance, but AR500 may perform better where impact toughness and fabrication flexibility are more important.

Can 600 BHN wear plates be welded?

Yes. However, welding requires proper preheating, low hydrogen consumables, and controlled cooling procedures to prevent cracking.

Should I choose CCO or high hardness AR steel?

Choose CCO for extreme sliding abrasion and high-temperature wear. Choose AR steel when structural strength, impact resistance, and fabrication requirements are critical.