NM500 steel is a high-strength abrasion-resistant steel known for its toughness and durability in harsh environments such as mining, construction, and material handling equipment. Here are some key specifications of NM500 steel:
NM500 Steel Specifications:
Standard:
NM500 steel is typically manufactured to Chinese standard GB/T 24186 or equivalent international standards.
Chemical Composition:
Carbon (C): 0.38-0.45%
Silicon (Si): 0.20-0.40%
Manganese (Mn): 1.00-1.70%
Phosphorus (P): 0.030% max
Sulfur (S): 0.020% max
Chromium (Cr): 0.30-0.70%
Nickel (Ni): 0.50-1.00%
Molybdenum (Mo): 0.20-0.40%
Copper (Cu): 0.25-0.45%
Mechanical Properties:
Hardness: 470-530 HBW (Brinell hardness)
Tensile Strength: 1550 MPa (N/mm²) min
Yield Strength: 1300 MPa (N/mm²) min
Elongation: 8% min
Applications:
NM500 steel is commonly used in applications requiring high wear resistance, such as excavator buckets, bulldozer blades, dump truck bodies, crushers, and structural components subjected to abrasive wear.
Weldability:
NM500 steel has moderate weldability, and proper welding procedures should be followed to maintain its mechanical properties and wear resistance after welding.
Formability:
Due to its high hardness and strength, forming NM500 steel into complex shapes may require preheating and special processes to prevent cracking.
Coating:
NM500 steel can be surface-treated with coatings like hardfacing overlay to further enhance its wear resistance and prolong service life in abrasive environments.
These specifications outline the composition, mechanical properties, applications, and characteristics of NM500 steel, a popular choice for high-wear applications where resistance to abrasion and impact is crucial.
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