NM600 Liner Plate Wear Resistant Steel Plate

NM600 is a high-strength wear-resistant steel plate widely used in the field of construction machinery due to its excellent wear resistance and mechanical properties. NM "represents wear resistance, and" 600 "refers to an average Brinell hardness value of approximately 600HBW.

• Chinese standard: GB/T 24186 (High strength abrasion-resistant steel plates for construction machine) defines grades, chemistry, hardening, thickness limits and test methods for NM series plates and is the most commonly referenced standard for NM600 production and acceptance in the Chinese supply chain.
• Hardness testing: Brinell hardness measurement methods follow ISO 6506 / EN ISO 6506-1 (or equivalent national adoptions) for HBW testing; reporting typically uses HBW with ball size/load indicated by the testing report. Use standardized test depth (0.5–2 mm below the surface) and report average values per standard.

NM600 occupies the same functional class as other global high-hardness abrasion steels. Common equivalents (performance class) seen in supplier literature:

• Hardox® 600 (SSAB) - nominal 600 HBW; widely regarded as a premium, tightly controlled product family.
• EH600 / EVERHARD-600 (JFE) - Japanese product in the 600 HBW class.
• AR600 / AR600 class steels - a North American-style designation used by mills and distributors for similar hardness class.
• Chinese NM600 - made to GB/T 24186 series; when properly produced it can match the key performance of the above brands for many wear cases.

• Cutting: plasma, waterjet, or laser for thinner sections; thermal cutting for thicker plates-expect a harder heat-affected zone (HAZ). Pre- and post-fabrication controls required.
• Welding: use low hydrogen electrodes and controlled preheat (preheat commonly recommended 150–250 °C depending on thickness and CE). For thicker plates or high carbon equivalent heats, interpass temperature control and tempering post-heat may be necessary to avoid HAZ brittleness.
• Bending/forming: limited cold-forming; small radius bends may be possible for thin NM600 but expect cracking risk in thicker plates. Use thermal forming or design around flat replacements.
• Machining: possible but abrasive on tooling; plan tooling selection and feeds accordingly.
• Weld repair & hardfacing: acceptable as ABI practice, but note hardfacing filler selection must be compatible to avoid premature spalling.

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• Construction Machinery -Road Surface Paver Screed and conveyor Plates, Excavators, Loader Bucket Edges, Bulldozers Dozers, Grader Screeds, Concrete, Asphalt Mixing Stations Lining and Blades, Tunnel Construction Equipment, Ship machine, material conveyor and so on.
• Mine machinery & Cement machinery -Power shovel, scraper, bucket wheel excavator shovel blade plate, shearer, boring machine, scraper conveyor, silos, chutes, hoists and pneumatic conveying pipelines, dump truck body lining, Machine, crusher, mill, sieve, feeder, stacker reclaimer, cement separator, roller press, etc.
• Metallurgical Machinery -Steel rolling equipment, scrap breaking machine, baler, blast furnace top hopper, Feed trough, liner, Blast furnace gas Venturi tube washing tower, Loading and unloading conveyor and liner for ore, coke, sintered material.
• Thermal Power Plant -Pulverizer lining, bucket wheel, coal hopper, pulverized coal conveying pipe, coal powder distributor grating, coal unloading equipment liner and so on.

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Gnee is a group company with over ten years of experience in steel trading, offering steel products at highly competitive prices and providing one-stop service to global customers. Our main products include seamless and welded steel pipes, galvanized steel coils, steel plates, PPG1, stainless steel plates, aluminum coils, angle steel, H-beams, and special-shaped steel, etc.

FAQ:

Q: Is NM600 weldable?
A: Yes. NM600 is weldable but requires controlled procedures (preheat, low H electrodes, controlled interpass) and attention to carbon equivalent and HAZ toughness. Do not weld without an approved WPS for the exact plate thickness/heat.

Q: Can I bend NM600 on a press brake?
A: Not recommended for thick plates; thin plates may be cold-formed with tight radii risk. For thicker sections, design without forming or use thermal forming.

Q: What hardness should I expect on delivery?
A: Typical target 570–640 HBW, with nominal 600 HBW; insist on Brinell readings on MTC.

Q: Is NM600 better than NM500?
A: NM600 gives longer wear life in abrasive conditions but less ductility and more fabrication challenge than NM500. Choose based on abrasion vs impact balance.

Q: What standards apply to NM600?
A: GB/T 24186 (China) for NM series; Brinell hardness per ISO/EN 6506. For cross-checking equivalence see SSAB and JFE product data sheets.

Q: Are there counterfeit or mislabeled NM600 plates?
A: Yes, always verify MTC, hardness tests and supplier traceability; buy from reputable mills or qualified traders.

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