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Help CenterNM400 Wear-resistant Plate High Manganese Alloy Steel Plate Iron Plate Medium-thick Plate Guard Plate Manganese Steel Cutting
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About NM400 Wear-Resistant Steel Plate
NM400 is a Chinese GB standard wear-resistant steel plate with a typical Brinnell hardness of 360–440 HB. It is widely used as a cost-effective solution for components subject to abrasive wear and moderate impact. Compared to ordinary carbon steel plates, NM400 significantly improves service life in mining, construction, and material handling applications.
Our NM400 plates are available in medium and heavy thicknesses, supplied as mill-standard or customized cuts. We support CNC plasma/laser cutting, beveling, and hole drilling, providing ready-to-assemble parts for your equipment.
Key Features:
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High hardness: 360–440 HB
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Good combination of strength, toughness, and weldability
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Stable performance in abrasive environments
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Suitable for both wear parts and structural reinforcement
Typical Applications:
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Excavator buckets & loader wear liners
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Crusher jaws, screen plates, and chute liners
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Dump truck body plates and scraper conveyors
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Guard plates and impact protection structures
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