{"id":2844,"date":"2026-06-26T14:54:20","date_gmt":"2026-06-26T06:54:20","guid":{"rendered":"https:\/\/jblstainless.com\/?post_type=product&p=2844"},"modified":"2026-06-26T15:00:44","modified_gmt":"2026-06-26T07:00:44","slug":"nm400-ar400-wear-resistant-steel-plate-8mm","status":"publish","type":"product","link":"https:\/\/jblstainless.com\/uk\/nm400-ar400-wear-resistant-steel-plate-8mm\/","title":{"rendered":"NM400 AR400 Wear Resistant Steel Plate 8mm"},"content":{"rendered":"
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What is wear-resistant plate 400?<\/strong><\/h1>

Wear-resistant steel 400 is a type of high-strength wear-resistant<\/strong> steel plate. Through the use of special alloy components and heat treatment processes, it not only maintains a very high hardness, but also possesses high toughness <\/strong>and processability. <\/strong>Especially for components such as the bucket of an excavator, the wear plate of a crusher, and the chute of a conveyor belt, which need to withstand frequent friction and impact, the importance of Wear Resistant Steel Plate 400 in the industrial field will be evident.<\/span><\/p>

Free Processing. Contact Us.<\/strong><\/a><\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Chemical composition comparison (typical values, %)\uff1a<\/strong><\/span><\/h3>
chemical element<\/th>NM400<\/th>AR400<\/th><\/tr><\/thead>
C<\/td>\u22640.30<\/td>0.12\uff5e0.30<\/td><\/tr>
Si<\/td>\u22640.70<\/td>0.20\uff5e0.80<\/td><\/tr>
Mn<\/td>\u22641.60<\/td>0.70\uff5e1.60<\/td><\/tr>
P<\/td>\u22640.025<\/td>\u22640.025<\/td><\/tr>
S<\/td>\u22640.010<\/td>\u22640.010<\/td><\/tr>
Cr<\/td>0.30\uff5e1.50<\/td>0.25\uff5e1.50<\/td><\/tr>
Ni<\/td>0\uff5e1.00<\/td>0\uff5e1.50<\/td><\/tr>
Mo<\/td>0.10\uff5e0.70<\/td>0.10\uff5e0.60<\/td><\/tr>
B<\/td>0.0005\uff5e0.005<\/td>0.0005\uff5e0.005<\/td><\/tr>
Ti\/Nb\/V<\/td>microalloying<\/td>microalloying<\/td><\/tr><\/tbody><\/table>

Carbon equivalen<\/span>\uff08CEV\uff09<\/span><\/h3>
item<\/th>NM400<\/th>AR400<\/th><\/tr><\/thead>
CEV<\/td>0.40\uff5e0.55<\/td>0.35\uff5e0.60<\/td><\/tr><\/tbody><\/table>

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Comparison of mechanical properties<\/span><\/h3>
item<\/th>NM400<\/th>AR400<\/th><\/tr><\/thead>
Brinell hardness HBW<\/td>360\uff5e440<\/td>360\uff5e440<\/td><\/tr>
Tensile strength Rm<\/td>1200\uff5e1450 MPa<\/td>1200\uff5e1500 MPa<\/td><\/tr>
Yield strength ReH<\/td>\u22651000 MPa<\/td>900\uff5e1200 MPa<\/td><\/tr>
Elongation A5<\/td>\u226510%<\/td>10\uff5e16%<\/td><\/tr>
Impact energy (-20\u2103\uff09<\/td>\u226524 J<\/td>20\uff5e45 J<\/td><\/tr>
Density<\/td>7.85 g\/cm\u00b3<\/td>7.85 g\/cm\u00b3<\/td><\/tr>
Elasticity modulus<\/td>210 GPa<\/td>210 GPa<\/td><\/tr><\/tbody><\/table>

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Heat treatment state<\/span><\/h3>

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NM400<\/span><\/h3>
Technology<\/th>Temperature<\/th><\/tr><\/thead>
Austenitizing<\/span>
\u00a0<\/div><\/td>
850\uff5e930\u2103<\/td><\/tr>
Quench<\/td>Water quenching or oil quenching<\/td><\/tr>
Temper<\/td>180\uff5e250\u2103<\/td><\/tr>
Condition of delivery<\/td>Tempering\uff08Q&T\uff09<\/td><\/tr><\/tbody><\/table><\/div><\/div>

Organization:<\/p>

  • Tempered Martensite<\/li>
  • Small Amount of Bainite<\/li><\/ul>

    AR400<\/span><\/h3>
    Technology<\/span>
    \u00a0<\/div><\/th>
    		Temperature<\/th><\/tr><\/thead>
    Austenitizing<\/td>870\uff5e930\u2103<\/td><\/tr>
    Quench<\/td>Water quenching or accelerated cooling<\/td><\/tr>
    Temper<\/td>150\uff5e300\u2103<\/td><\/tr>
    Condition of delivery<\/td>Tempering<\/span>
    \u00a0<\/div>\uff08Q&T\uff09<\/td><\/tr><\/tbody><\/table><\/div><\/div>

    Organization:<\/p>

    • Tempered martensite is the main type<\/li>
    • Some manufacturers use a martensitic + bainite structure<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      Property changes after heat treatment<\/span><\/h3>

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      NM400<\/span><\/h3>
      State<\/th>Hardness<\/span>
      \u00a0<\/div>HBW<\/th>
      		Strength of extensionMPa<\/th><\/tr><\/thead>
      Original delivery<\/td>400\u00b140<\/td>1250\uff5e1400<\/td><\/tr>
      Tempering at 200\u2103<\/td>380\uff5e420<\/td>1200\uff5e1350<\/td><\/tr>
      Tempering at 300\u2103<\/td>340\uff5e390<\/td>1100\uff5e1250<\/td><\/tr>
      Tempering at 500\u2103<\/td>250\uff5e320<\/td>850\uff5e1050<\/td><\/tr><\/tbody><\/table><\/div><\/div>

      AR400<\/span><\/h3>
      State<\/th>Hardness<\/span>
      \u00a0<\/div>HBW<\/th>
      		Strength of extensionMPa<\/th><\/tr><\/thead>
      Strength of extension<\/td>400\u00b140<\/td>1200\uff5e1500<\/td><\/tr>
      Tempering at 200\u2103<\/td>380\uff5e430<\/td>1200\uff5e1400<\/td><\/tr>
      Tempering at 200\u2103<\/td>340\uff5e400<\/td>1100\uff5e1300<\/td><\/tr>
      Tempering at 500\u2103<\/td>240\uff5e320<\/td>800\uff5e1000<\/td><\/tr><\/tbody><\/table><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      NM400 \u2248 AR400 be used interchangeably?<\/span><\/h2>

      NM400 and AR400 can be used interchangeably in most wear-resistant applications.<\/p>

      What circumstances can it be directly replaced?<\/strong><\/p>

      • Hardness: 360 – 440 HBW
        Tensile strength: Approaching the original design requirements<\/li>
      • Yield strength: Not lower than the design requirements<\/li>
      • Thickness: The same
        Welding: The welding process has been reconfirmed<\/li>
      • Operating temperature: Normal temperature or general low temperature<\/li><\/ul>

        What circumstances cannot it be directly substituted?<\/strong><\/p>

        • Drawings clearly stipulate: ASTM, SAE or specific manufacturer’s brand.<\/li>
        • Low-temperature impact requirements: -40\u2103, -60\u2103<\/li>
        • High-stress fatigue components: cranes, bridges, etc.<\/li>
        • Requires third-party certification or pressure vessel certification.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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          What other materials correspond to the NM400 international version?<\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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          North America (commercial brand)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          France, although having similar hardness, thanks to its unique metallurgical design, its wear resistance is usually superior to that of ordinary 400-grade materials.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Finland. Widely used in Europe, its performance is comparable to that of Hardox.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          In Germany, German construction machinery is commonly used.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Sweden, internationally recognized as high-end wear-resistant steel with excellent toughness.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Why choose the NM 400 STEEL PLATE from China?<\/span><\/h2>

          1: Low price<\/strong><\/p>

          The purchase price of NM400 Steel is usually 20% to 50% lower than that of imported brands.<\/p>

          2: The performance can already meet the requirements of most working conditions.<\/strong><\/p>

          The NM 400 STEEL PLATE and the international 400-grade wear-resistant steel do not differ in actual lifespan, and the difference is not significant in many working scenarios.<\/p>

          3. Fast domestic delivery speed<\/strong><\/p>

          The NM400 abrasion resistant steel plate model has a wide range of stock availability, and many specifications can be delivered quickly.<\/p>

          4. Well-developed processing capabilities<\/strong><\/p>

          Many manufacturing plants have established corresponding process standards and have accumulated rich experience.<\/p>

          From the perspective of overall cost-effectiveness, NM400 abrasion resistant steel Sheet is a highly competitive option for international engineering applications. It can meet the requirements of most wear-resistant conditions in terms of hardness, wear resistance and processing performance, while also having advantages such as low cost, quick supply, and mature processing support.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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          How do we choose between the NM400 and international brands?<\/span><\/h2>
          Usage Scenario<\/th>Usage Scenario<\/th><\/tr><\/thead><\/table>
          Mining equiment<\/td>NM400<\/td><\/tr><\/tbody><\/table><\/div>
          Wear-resistant parts for cement plants<\/td>NM400<\/td><\/tr><\/tbody><\/table><\/div>
          Port facilities<\/td>NM400<\/td><\/tr><\/tbody><\/table><\/div>
          Ordinary construction machinery<\/td>NM400<\/td><\/tr><\/tbody><\/table><\/div>
          High-end mining equipment<\/td>Hardox 400\u3001Raex 400\u3001XAR 400<\/td><\/tr><\/tbody><\/table><\/div>
          Equipment for export to Europe and America<\/td>AR400 or the brand designated by the owner<\/td><\/tr><\/tbody><\/table><\/div>
          Extremely cold environment<\/td>Products with better low-temperature toughness performance such as Hardox 400 and Raex 400<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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          In which fields can the NM400 be applied?<\/span><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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          Engineering Machinery<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Excavator bucket \/ Loader bucket \/ Bulldozer blade \/ Grader scraper \/ Excavator trench body<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Mining Equiment<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Crusher liner \/ chute \/ funnel \/ vibrating screen \/ feeder \/ conveying trough<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Dump trucks, truck cargo compartments<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Carriage floor\/ side panel\/ rear door\/ wear-resistant lining plate<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Cement Plant Equipment<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Cement slurry chute \/ conveyor belt liner \/ hopper \/ fan blade liner \/ powder classifier wear-resistant parts<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Thermal Power Plant<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Coal conveying system \/ Coal discharge pipe \/ Coal bunker lining \/ Ash and slag conveying equipment \/ Wear-resistant components of air-powder pipe<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Port and bulk material conveying equipment<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Port hopper \/ Ship unloader hopper \/ Ship loader hopper \/ Conveyor belt discharge chute \/ Bulk material conveying system<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Agriculture and Renewable Resources Equipment<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Welded steel crusher \/ Waste disposal equipment \/ Biomass transportation equipment \/ Straw shredding equipment<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Some Questions Regarding NM400?<\/span><\/h3>

          How long can NM400 last?<\/strong>
          There is no fixed lifespan. It is 3 to 5 times longer than ordinary Q235 steel plates.<\/p>

          Does NM400 have magnetism?<\/strong>
          Yes. It is a low-alloy steel and is ferromagnetic.<\/p>

          Will NM400 rust?<\/strong>
          Yes. NM400 is not stainless steel.<\/p>

          Can NM400 be welded?<\/strong><\/p>

          OK. Use low-hydrogen welding materials and allow the weld to cool slowly after welding.<\/p>

          Can it be bent?<\/strong><\/p>

          OK. The bending radius should comply with the manufacturer’s recommendation.<\/p>

          Can we drill holes?<\/strong><\/p>

          OK. CNC machining.<\/p>

          Can it be laser-cut?<\/strong><\/p>

          OK. Plasma, flame, water jet cutting.<\/p>

          Can the NM400 withstand high temperatures?<\/strong>
          Long-term high temperatures will reduce hardness. Recommendation: Use a temperature not exceeding approximately 250\u2103.<\/p>

          How to determine if the NM400 is qualified?<\/strong>
          General inspection: chemical composition, hardness, mechanical properties, dimensional tolerance, ultrasonic testing (UT), material certificate (MTC).<\/p>

          Why do the performances of NM400 from different manufacturers vary?<\/strong><\/p>

          The steelmaking process, heat treatment, may be different.<\/p>

          Can it be processed to a fixed length?<\/strong>
          OK. Support cutting, bending, drilling, beveling, and welding.<\/p>

          Can the NM400 be exported?<\/strong><\/p>

          OK.<\/p>

          Which types of inspection documents can be provided?<\/strong><\/p>

          Material Certificate (MTC), Chemical Composition Report, Mechanical Performance Report, Hardness Report, UT Inspection, Third-party Inspection (such as SGS, BV)<\/p>

          Click The Link\u00a0 Contact Us.<\/span><\/a><\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

          NM400 AR400 Wear Resistant Steel Plate 8mm<\/strong><\/p>\n

          400 represents the Brinell hardness value<\/p>\n

          Domestic NM400 complies with either GB\/T 24186-2022 or the enterprise standards of the steel mill.<\/p>\n

          Thickness: 5 – 80 millimeters<\/p>\n

          Width: 1500 – 3800 millimeters<\/p>\n

          Working temperature: -60\u2103 to 600\u2103<\/p>\n

          Processing support: Equipped with professional cutting equipment, jblstainless<\/strong> can directly provide special-shaped parts (such as wear-resistant pipes, liners)<\/p>","protected":false},"featured_media":2683,"template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[67],"product_tag":[],"class_list":["post-2844","product","type-product","status-publish","has-post-thumbnail","product_cat-wear-resistant-steel-plate","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/product\/2844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":5,"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/product\/2844\/revisions"}],"predecessor-version":[{"id":2947,"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/product\/2844\/revisions\/2947"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/media\/2683"}],"wp:attachment":[{"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/media?parent=2844"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/product_brand?post=2844"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/product_cat?post=2844"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jblstainless.com\/uk\/wp-json\/wp\/v2\/product_tag?post=2844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}