har 400 Acero

har 400 Acero

har 400 offers higher alloy strength, impact toughness and wear resistance, making it ideal for heavy-duty mining and quarry applications. NM400 provides sufficient performance for general industrial abrasion needs, with simpler composition and easier cost control.

If selecting a material for high-impact or extreme wear, har 400 is typically the stronger option. For moderate wear applications with budget consideration, NM400 is a reliable alternative.

Categoría: Serie NM

Descripción

har 400 es un alto rendimiento apagado y revenido (q&T) acero resistente al desgaste designed for heavy-duty abrasion and impact working environments. Es ampliamente utilizado en equipos de minería., maquinaria pesada, carrocerías de camiones, cantera, and loading machines. NM400 is also a widely used wear-resistant steel grade, particularly common in Asian industrial applications.

While both Xar 400 and NM400 are classified as 400 media pensión hardness grades, they differ in chemical composition, performance stability, tenacidad, and processing characteristics.

Key Characteristics of Xar 400

Nominal hardness of ~400 HB
High toughness and resistance to crack propagation
Good bending, corte, y rendimiento de soldadura
Consistent mechanical stability due to strict alloy control
Suitable for heavy abrasion combined with strong impact loading

har 400 vs NM400 – Composition and Performance Comparison

Comparación de composición química (Typical Values)

Calificación	do (%)	Minnesota (%)	cr (%)	En (%)	Mes (%)	B (%)
har 400	0.20–0,25	1.0–1,6	0.5–1,5	0–1,0	0.3–0.6	≤0,005
NM400	0.15–0,26	1.0–1,6	0.3–0.7	—	—	—

Values shown are typical ranges for comparison; actual composition varies by production specification.

Tabla de comparación de rendimiento

Propiedad	har 400	NM400
Dureza (media pensión)	370–430	360–430
Fuerza de producción	>1000 MPa	900–1000MPa
Resistencia al impacto	muy alto	Medio a alto
Resistencia a la abrasión	Excelente	Bien
Crack & Break Resistance	Better at high impact	Moderado
Rendimiento de soldadura	Good with control	Bien
Doblar / formando	Better cold bending capability	Estándar
Service Life in Extreme Wear	Longer and more stable	Moderado

Key Differences Between Xar 400 and NM400

1. Alloy Design

har 400 includes additional alloying elements such as chromium, molybdenum and nickel, which significantly improve:

Hardenability and wear resistance
Toughness and crack resistance
Performance stability during machining and welding

NM400 has a simpler alloy system, making it more cost-efficient but slightly lower in impact durability.

2. Service Performance

har 400 performs better in environments with extremely high wear and repeated impact, such as chute liners and crusher components.
NM400 is suitable for general abrasion with moderate impact, such as truck bodies and buckets.