400 Acero HB
Among 400 HB steels, BW400 and NM400 offer clear advantages for heavy-duty wear environments:
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BW400: superior sliding wear resistance and dimensional stability
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NM400: excellent impact + sliding wear balance with good weldability
Mientras AR400 is suitable for general wear applications, BW400 and NM400 remain the preferred choice in alta abrasión, minería, y aplicaciones industriales, asegurando larga vida útil, mantenimiento reducido, and optimal performance.
- Descripción
400 acero HB is a widely used wear-resistant material in minería, construcción, y industrias de maquinaria pesada. Popular grades include NM400, BW400, y ar400, each designed to balance resistencia a la abrasión, tenacidad, and industrial applicability.
1. Overview of NM400, BW400, y ar400
| Calificación | Dureza (media pensión) | Características clave | Aplicaciones |
|---|---|---|---|
| NM400 | 400 media pensión | High abrasion resistance with good toughness; ideal for impact + desgaste deslizante | Revestimientos de trituradora, tolvas, cae, revestimientos de cubo |
| BW400 | 400 media pensión | Dureza uniforme, excelente resistencia al desgaste, especially for heavy sliding wear; superior dimensional stability | Revestimientos transportadores, equipo de minería, large abrasion surfaces |
| AR400 | 400 media pensión | Quenched and tempered steel with balanced hardness and impact resistance | General wear plates, earthmoving machinery, equipo de construcción |
2. Advantages of NM400 and BW400
NM400
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Optimized alloy composition (do, cr, Minnesota) for high resistencia a la abrasión y al impacto.
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Se desempeña bien en combined impact and sliding wear environments.
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Buena soldabilidad allows fabrication into customized components.
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Comúnmente utilizado en mining crushers, revestimientos de molienda, y topadoras.
BW400
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Uniform hardness throughout the plate thickness asegura vida útil más larga.
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Excelente resistencia al desgaste por deslizamiento, suitable for heavy-duty conveyor liners and chutes.
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Superior dimensional stability, reducing deformation during fabrication or installation.
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Performs well under continuous abrasive conditions where NM400 may experience slight surface wear over time.
3. Comparison Summary
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AR400 is versatile but slightly less specialized in high-abrasion scenarios.
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NM400 sobresale en combined impact and sliding wear, making it ideal for crushers and hoppers.
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BW400 proporciona maximum sliding wear resistance and dimensional stability, making it superior for large-scale conveyor systems and heavy mining equipment.
4. Aplicaciones de 400 HB Steel Grades
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Minería: revestimientos de cubo, trituradora de mandibulas, revestimientos de molienda, tolvas
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Construcción: cuchillas de excavadora, earthmoving machinery
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Manipulación de materiales: revestimientos transportadores, cae, bombas de lodo
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Maquinaria industrial: impact-resistant and high-abrasion surfaces
