Products
Contact Us
Ar450 Steel Plate
Keywords:
Category:
Product Details
AR450 steel plate is a high-strength abrasion resistant steel designed for applications where moderate to severe wear conditions are present. It is widely used in mining equipment, construction machinery, material handling systems, and industrial wear components. The “AR” stands for abrasion resistant, and the number refers to the typical Brinell hardness level.
AR450 provides a balanced combination of hardness, toughness, and workability, while AR550 is a higher hardness grade designed for more extreme wear environments.
1. What Is AR450 Wear Resistant Steel?
AR450 is a quenched and tempered wear-resistant steel plate.
Main characteristics:
- Typical hardness: around 425–475 HBW
- High resistance to sliding and impact wear
- Good toughness compared with higher hardness grades
- Suitable for structural wear parts
- Moderate machinability and weldability
Typical composition concept:
AR450 is not defined by a single fixed chemical formula, but generally includes:
- Carbon (C): contributes to hardness
- Manganese (Mn): improves toughness and hardenability
- Boron (B) or alloying elements: enhance hardenability
- Controlled impurities for weldability
2. What Is AR550 Steel Plate?
AR550 is a higher hardness wear-resistant steel grade.
Main characteristics:
- Typical hardness: around 525–575 HBW
- Extremely high abrasion resistance
- Lower ductility compared to AR450
- More difficult to process and form
- Higher wear life in extreme conditions
3. AR450 vs AR550 Steel Plate Comparison
| Property | AR450 Steel Plate | AR550 Steel Plate |
|---|---|---|
| Hardness | ~425–475 HBW | ~525–575 HBW |
| Wear Resistance | High | Very high |
| Toughness | Better balance | Lower |
| Formability | Easier to bend and fabricate | More difficult |
| Weldability | Good (with proper procedures) | More sensitive, requires strict control |
| Service Life | Long | Longer in extreme wear |
| Application Focus | General industrial wear | Heavy-duty extreme wear |
4. Performance Difference in Real Applications
AR450 advantages:
- Better balance between hardness and toughness
- Easier cutting, bending, and welding
- Suitable for fabricated wear parts
- Lower risk of cracking during forming
AR550 advantages:
- Superior wear resistance in extreme abrasion
- Longer service life in high-impact environments
- Reduced maintenance frequency
5. Common Applications
AR450 Steel Plate Applications:
- Dump truck bodies
- Excavator buckets
- Mining chutes and liners
- Construction machinery parts
- Material handling equipment
AR550 Steel Plate Applications:
- Heavy mining liners
- High-impact rock handling systems
- Extreme abrasion conveyor components
- High-wear industrial chutes
- Severe duty earthmoving equipment
6. Selection Guidance
Choosing between AR450 and AR550 depends on application requirements:
- If balance of strength, weldability, and wear resistance is needed → AR450
- If maximum wear resistance is required and fabrication is secondary → AR550
Product Inquiry
Relevant Products
TIANJIN TEDA GANGHUA
Tel: +86 22 86896631
Phone: +86 15822676888
Fax: +86 22 86896632
E-mail: sales1@tedaganghua.com
Office Hours:Mon – Fri / 9:00 AM – 6:00 PM
Address:Beichen Industrial Area, Beichen District, Tianjin 300400 China
Room A3101, Section 2, No. 122, Dongting Road, Tianjin Development Zone
Leave a message online
Copyright © 2023 TIANJIN TEDA GANGHUA