NM450 is a high-strength wear-resistant steel plate that belongs to the NM series. Here's some information about NM450 steel plate:
Composition: NM450 steel plate is primarily composed of iron (Fe) with small amounts of carbon (C), manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), chromium (Cr), nickel (Ni), molybdenum (Mo), and other alloying elements.
High Wear Resistance: NM450 steel plate offers excellent wear resistance, allowing it to withstand abrasive conditions and impact from heavy loads. It is designed to resist sliding wear, gouging, and high-velocity impacts encountered in applications such as mining equipment, construction machinery, and industrial wear parts.
Mechanical Properties: NM450 has a nominal hardness of approximately 450 Brinell (HBW), which provides good resistance to the penetration and deformation caused by abrasive materials. The specific mechanical properties, including tensile strength, yield strength, elongation, and impact resistance, can vary depending on the thickness and heat treatment condition of the plate.
Processing and Weldability: NM450 steel plate can be processed through various methods such as cutting, bending, machining, and welding. However, due to its high hardness, special care should be taken during processing to prevent excessive tool wear. Welding processes such as gas metal arc welding (GMAW) or shielded metal arc welding (SMAW) can be used, and preheating and post-weld heat treatment may be required to maintain the desired properties.
Standard and Specifications: NM450 is a Chinese standard designation for wear-resistant steel plates. It is often referred to as "Abrasion Resistant Steel Plate" or "AR450" in international standards, where "AR" stands for Abrasion Resistant.
Availability: NM450 steel plates are available in various thicknesses, widths, and lengths. They can be supplied in a normalized or quenched and tempered condition, depending on the desired hardness and toughness requirements.
When using NM450 steel plates, it's important to consider the specific wear conditions, operational factors, and mechanical properties required for your application. Consulting the relevant standards and working with experienced professionals can help ensure proper utilization of NM450 steel plates for optimal performance and durability.
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