- 説明
Abrasion resistant wear plates are high-hardness steel materials specifically designed to resist friction, インパクト, and abrasive wear in severe industrial environments. These steels are widely used in mining, セメント生産, 建設機械, recycling systems, and heavy material handling equipment.
Internationally, abrasion resistant steels are classified by hardness level, alloy system, or regional standards. Different countries and manufacturers use different grade naming systems, but most materials are designed around the same principle: achieving a balance between hardness, 靭性, 溶接性.
1. ARシリーズ (North American Standard)
The AR series is one of the most widely recognized international abrasion resistant steel systems.
“AR” stands for Abrasion Resistant.
| 学年 | Approximate Hardness | Main Characteristics |
|---|---|---|
| AR400 | ～400HB | Good wear resistance and weldability |
| AR450 | ~450 HB | 耐摩耗性の向上 |
| AR500 | ～500HB | High wear resistance for severe conditions |
| AR600 | ~600HB | Extreme wear resistance, limited formability |
代表的な用途
- Mining truck liners
- クラッシャーライナー
- コンベヤシュート
- 掘削機バケット
2. Hardox Series (スウェーデン)
Hardox is a globally recognized wear plate system developed for high-performance abrasive environments.
| 学年 | 硬度 | 特徴 |
|---|---|---|
| ハードックス 400 | ～400HB | 靭性と耐摩耗性のバランスが取れています |
| ハードックス 450 | ~450 HB | Improved service life |
| ハードックス 500 | ～500HB | 優れた耐摩耗性 |
| ハードックス 550/600 | 非常に高い硬度 | Extreme wear environments |
特徴
- 優れた耐衝撃性
- High toughness despite hardness
- Good processing and welding capability
一般的なアプリケーション
- ダンプトラックの車体
- Heavy mining equipment
- Industrial wear liners
3. NMシリーズ (China Standard)
The NM series is one of the most common wear plate systems used in China.
“NM” generally refers to wear resistant steel plate.
| 学年 | Approximate Hardness | 主な用途 |
|---|---|---|
| NM360 | ~360 HB | General wear conditions |
| NM400 | ～400HB | 鉱業と建設 |
| NM450 | ~450 HB | 中程度から重度の摩耗 |
| NM500 | ～500HB | Severe abrasion conditions |
特徴
- Similar performance to AR grades
- 工業製造で広く使用されています
- Good cost-performance balance
4. XAR Series (ドイツ)
XAR wear plates are European high-hardness abrasion resistant steels.
| 学年 | 硬度 | 特徴 |
|---|---|---|
| XAR400 | ～400HB | 優れた耐摩耗性 |
| XAR450 | ~450 HB | Increased abrasion performance |
| XAR500 | ～500HB | Severe wear applications |
アプリケーション
- Cement equipment
- Earthmoving machinery
- Bulk material handling systems
5. JFE EH Series (日本)
Japanese wear-resistant steels are known for stable quality and impact resistance.
| 学年 | 硬度 | 特徴 |
|---|---|---|
| EH360 | ~360 HB | Good weldability |
| EH400 | ～400HB | バランスの取れた摩耗と靭性 |
| EH500 | ～500HB | 高い耐摩耗性 |
Typical Uses
- Industrial machinery
- Steel mill liners
- 鉱山機械
6. 高マンガン摩耗鋼 (MN13)
Unlike quenched wear plates, Mn13 is a work-hardening wear steel.
特徴
- Surface hardens under impact
- 優れた耐衝撃性
- Good for high-impact wear conditions
アプリケーション
- クラッシャージョー
- 踏切
- Impact liners
7. Comparison of Major Wear Plate Grades
| Grade System | 硬度範囲 | Main Advantage |
|---|---|---|
| ARシリーズ | 400–600 HB | International standard recognition |
| ハードックス | 400–600 HB | High toughness and premium quality |
| NMシリーズ | 360–500HB | Cost-effective industrial use |
| XAR Series | 400–500HB | European engineering applications |
| Mn13鋼 | Work hardening | High impact resistance |
8. Selection Considerations
Different abrasion resistant wear plates are selected based on:
- 摩耗の種類 (スライディング, インパクト, えぐる)
- Required hardness level
- Weldability requirements
- Processing complexity
- Service environment
Higher hardness usually improves wear resistance, while lower hardness grades often provide better toughness and easier fabrication.
