Placa de sobreposição de carboneto

Placa de sobreposição de carboneto: Wear Resistance Comparison with Wear Steel and High Manganese Steel

Carbide overlay plate is a composite wear-resistant steel plate produced by depositing a high-hardness carbide-rich layer (mainly chromium carbide or complex carbides) onto a carbon steel or low-alloy steel base. It is widely used in severe abrasion environments such as mining, cimento, geração de energia, e manuseio de materiais a granel.

To understand its performance advantage, it is commonly compared with traditional wear-resistant steel plates (such as NM400/NM500) and high manganese steel (MN13). These three materials represent different wear protection mechanisms and hardness levels.

1. Comparação de dureza

Material	Nível de dureza	Surface Characteristics
Carbide overlay plate	CDH 58–65 (até 70+ with tungsten carbide)	Extremely hard carbide surface layer
Aço resistente ao desgaste (NM400/NM500)	MP 400–500	Uniform hardened steel structure
Aço com alto teor de manganês (MN13)	HB 180–220 (before work hardening)	Soft initially, work hardens under impact

Carbide overlay plates have the highest initial surface hardness among the three materials.

2. Wear Resistance Mechanism Difference

Material	Mecanismo de Desgaste
Carbide overlay plate	Hard carbide particles resist abrasion directly
Usar aço (NM/AR)	Bulk hardness resists impact and wear
Aço com alto teor de manganês	Surface becomes harder under repeated impact (endurecimento por trabalho)

Each material is optimized for different wear conditions rather than competing directly.

3. Performance in Different Working Conditions

Doença	Best Material
High sliding abrasion (carvão, cimento, minério)	Carbide overlay plate
Impacto misto + abrasão	Aço resistente ao desgaste (NM400/NM500)
Strong impact (triturador, hammering)	Aço com alto teor de manganês

4. Key Difference in Hardness Behavior

• Carbide overlay plate: High hardness from the start (resistência ao desgaste estável)
• Usar aço: Dureza e tenacidade equilibradas
• Aço com alto teor de manganês: Low initial hardness but increases under impact

5. Comparação de vida útil

• Carbide overlay plate: Longest life in abrasive sliding conditions
• Usar aço: Stable life in mixed wear conditions
• Aço com alto teor de manganês: Best in repeated impact environments

Service life depends heavily on correct material selection for the working condition.

6. Why Carbide Overlay Plate Performs Better in Abrasion

• Extremely hard chromium carbide particles (CDH 58–65)
• Dense wear-resistant surface structure
• Low material loss under particle erosion

7. Teda Ganghua Carbide Overlay Plate Supply Capability

Como fornecedor profissional de aço resistente ao desgaste, Teda Ganghua provides carbide overlay plates and other wear-resistant solutions with optimized hardness and alloy design for mining, cimento, aço, e indústrias de energia.

Apoiamos corte personalizado, fabricação, and full wear system design based on real application conditions.

Explore nossos produtos de aço resistentes ao desgaste aqui:
Placa de sobreposição de carboneto de cromo

Conclusão

Carbide overlay plate offers the highest surface hardness and best abrasion resistance compared with wear steel and high manganese steel. No entanto, each material has its own advantage depending on whether the working condition is abrasion, impacto, or mixed wear.