There are significant differences in the service life between chromium carbide overlay plate and NM500, depending on the application environment and working conditions.

1. Chromium Carbide Wear-Resistant Composite Steel Plate

Features: Composed of a high carbon steel base and a chromium carbide wear-resistant layer, the wear-resistant layer has high hardness at HRC 58-62 and excellent wear resistance.

Service Life: Under conditions of severe wear and high impact, its lifespan is typically longer than that of NM500, especially in environments with significant abrasive wear.

2. NM500 Wear Resistant Steel Plate

Features: A single material, high hardness wear-resistant steel plate with a hardness of approximately HB 500. It offers good wear resistance, but its overall hardness is lower than that of the chromium carbide wear-resistant layer.

Service Life: It performs well under general wear conditions, but in high-wear and high-impact environments, its lifespan is usually shorter than that of chromium carbide wear-resistant composite steel plates.

3. Comparison

Wear Resistance: Chromium carbide wear-resistant composite steel plates outperform NM500, especially in severe abrasive wear conditions.

Impact Resistance: NM500 has better impact resistance, making it suitable for high-impact conditions.

Cost: Chromium carbide wear-resistant composite steel plates are more expensive, but their longer lifespan may offer better overall cost-effectiveness.

4. Application Recommendations

Chromium Carbide Wear-Resistant Composite Steel Plate: Suitable for high-wear and high-impact environments, such as mines and cement plants.

NM500: Suitable for general wear environments, such as conveying equipment and construction machinery.

Summary

Chromium carbide wear-resistant composite steel plates generally have a longer lifespan than NM500 in high-wear and high-impact environments. However, the specific choice should be based on actual working conditions and cost considerations.