NM400 wear resistant plate is a high-strength abrasion resistant steel plate engineered to deliver exceptional performance in the most demanding industrial environments.
NM400 wear resistant plate
As a core grade in the NM series, NM400 steel plate is defined by its high hardness (360–420 HBW), excellent weldability, and strong impact resistance.
As a professional supplier, we provide premium NM400 steel designed to extend equipment lifespan, reduce maintenance costs, and improve operational efficiency across industries facing severe wear conditions.
Why Choose NM400 Wear Resistant Steel Plate?
The NM400 wear resistant plate is specifically developed to balance hardness, toughness, and fabrication performance, making it superior to ordinary carbon steel.
Key Advantages:
- High Strength & Hardness
Designed to resist abrasion, deformation, and surface damage under heavy loads.
- Excellent Wear Resistance
Service life is significantly longer than standard steel plates, reducing replacement frequency.
- Good Weldability & Formability
Easy to fabricate into complex structures without compromising performance.
- Cost-Effective Alternative
Comparable to Hardox 400 / AR400, but at a more competitive price.
Applications of NM400 Wear Resistant Plate
Thanks to its outstanding durability, NM400 steel plate is widely used in heavy industries:
- Construction Machinery – loader bucket edges, excavator wear plates
- Mining & Quarrying – crusher liners, screening equipment plates
- Coal Industry – scraper conveyors, chute liners
- Power Plants – pulverizer liners, coal handling systems
- Heavy Transport – truck hopper liners for ores, sand, and gravel
If your equipment suffers from constant abrasion, NM400 abrasion resistant steel plate is one of the most reliable solutions.
Processing Characteristics of NM400 Steel Plate
1. Cold Forming (Bending)
- Although NM400 steel has high hardness, it maintains stable cold-forming performance.
- Grinding cut edges before bending is recommended
- Helps prevent edge cracking
- Ensures smoother forming results
2. Hot Forming
- For thermal processing of NM400 wear resistant plate:
- Recommended temperature: below 350°C
- If exceeding transformation temperature (Ac), apply:
- Post-tempering: 250°C – 350°C
This ensures the mechanical properties and hardness of the NM400 steel plate remain stable. NM400 allows higher forming temperatures than some European grades like DILLIDUR 400V.
NM400 Steel Plate Chemical Composition (%)
The balanced alloy design ensures optimal performance:
| Element | Content |
|---|---|
| C | ≤ 0.22 |
| Si | ≤ 2.0 |
| Mn | ≤ 2.2 |
| P | ≤ 0.020 |
| S | ≤ 0.006 |
| Cr | ≤ 0.90 |
| Mo | ≤ 0.50 |
Mechanical Properties of NM400 Wear Resistant Plate
(For thickness 8–50 mm)
| Property | Value |
|---|---|
| Yield Strength | ≥ 900 MPa |
| Tensile Strength | ≥ 1150 MPa |
| Elongation | ≥ 10% |
| Hardness | 360 – 420 HB |
| Impact Energy (20°C) | ≥ 25 J |
Core Benefit: High hardness + strong impact resistance = longer service life in harsh environments.
Wear Resistance Comparison of Difference Steel
Performance tests show that NM400 wear resistant steel plate performs equal to or better than international equivalents:
| Test Group | Grade | Wear Ratio |
|---|---|---|
| Group A | NM360 | 1.16 |
| Sweden Standard | Reference | 1.00 |
| Group B | NM400 | 1.21 |
| Japan EH400 | Reference | 1.00 |
NM400 demonstrates lower wear loss and better durability under the same conditions.
Why NM400 Steel is the Smart Choice
Whether you are manufacturing mining liners, upgrading construction equipment, or improving bulk handling systems, NM400 wear resistant plate offers:
- Longer service life
- Reduced maintenance downtime
- Lower total project cost
- Reliable performance under extreme wear
Choosing NM400 steel plate means investing in durability, efficiency, and long-term savings.
If you are sourcing a reliable NM400 wear resistant plate supplier, we are ready to provide high-quality materials tailored to your project requirements. From standard stock sizes to customized cutting and processing, we ensure fast delivery and strict quality control for every order.
Our team can help you select the most suitable NM400 steel plate based on your application, whether it is mining, construction, or heavy transport. With full technical support and competitive pricing, we make your procurement process simple and efficient.
Contact us today to get a quick quotation (FOB/CIF) and professional advice. Let us help you choose the right abrasion resistant steel plate and maximize the performance and lifespan of your equipment.
Contact now to get NM400 steel plate Quote
Is NM400 the same as Hardox 400?
No. they are comparable in nominal hardness band (~400 HBW) but Hardox® 400 is a branded product with controlled chemistry, guaranteed toughness and detailed mill documentation from SSAB. NM400 is a Chinese standard grade with similar hardness but variable mill-to-mill properties. Always specify required testing and acceptance criteria, not only grade name.
Can NM400 be welded to structural steels?
Yes with matched filler and appropriate preheat/thermal control. Avoid high heat input and verify consumables with the supplier's welding instructions.
How do I select between NM400 and a harder NM450 / NM500?
Choose by wear mode: for abrasive sliding wear NM400 often suffices; for extremely abrasive, long-life needs select NM450/NM500 but expect increased cost and reduced formability.
Is NM400 suitable for bucket liners and dump bodies?
Yes. widely used for these applications; ensure weldability and thickness suit the application.
Can NM400 be flame cut and drilled?
Yes; use standard industrial cutting methods but be mindful of hardened surface causing additional tool wear.
How should NM400 be stored and handled?
Store flat on timber, avoid edge damage, keep clean and protected to avoid contamination of welding surfaces.