NM400 Wear Resistant Steel Plate for Mining
NM400 is a wear-resistant steel plate that conforms to Chinese national standards and is renowned for its excellent wear resistance and stable structural strength. This steel achieves a good balance between wear resistance and structural strength and is widely used in industrial fields such as mining and construction machinery where stringent wear resistance requirements exist.
Features of NM400
- Impact Resistance: NM400 wear-resistant steel plates exhibit excellent impact resistance. During material transport, even if objects fall from a height, they will not cause significant damage.
- Heat Resistance: Generally, NM400 wear-resistant steel plates can be used normally below 600 degrees Celsius. If vanadium and molybdenum are added during manufacturing, NM400 wear-resistant steel plates can withstand temperatures up to 800 degrees Celsius without issues.
- Corrosion Resistance: Due to the high chromium content, NM400 wear-resistant steel plates possess excellent corrosion resistance, eliminating concerns about corrosion.
- Cost-Effectiveness: While NM400 wear-resistant steel plates typically cost 3 to 4 times more than ordinary steel plates, their service life is more than 10 times longer, making NM400 wear-resistant steel plates/thin plates extremely cost-effective.
- Ease of Processing: Wear-resistant steel plates have strong weldability and can be easily bent into various shapes, making them very convenient to process.
Chemical composition of NM400
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Ti | B | Als |
| NM400 | ≤0.30 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.010 | ≤1.20 | ≤0.70 | ≤0.50 | ≤0.50 | 0.0005-0.006 | ≥0.01 |
Mechanical properties of NM400
| Mechanical properties of NM 400 | |||
| Grade | Mechanical Property | ||
| NM 400 | Yield | Tensile | Elongation |
| Min Mpa | Mpa | Min % | |
| 1000 | 1200 | 10 | |
| NM400 | Thickness | Hardness (HB) |
| ≤80mm | 370~430 | |
| ＞80~120mm | 360~440 |
NM400 steel plate boasts superior performance, exhibiting excellent high tensile strength, wear resistance, and outstanding durability. These properties make it an ideal material for applications requiring extremely high wear resistance.
NM400 wear-resistant steel plate
NM400 production process
Forging of NM400 Steels
The forging method for NM400 steel plates involves heating the material to a specific temperature before shaping it. This process improves the mechanical properties of the steel, making it more suitable for a variety of applications. Proper forging techniques are crucial for maintaining the integrity of NM400 steel.
Heat Treatment of NM400 Wear-Resistant Steel
Heat treatment of NM400 steel plates includes processes such as annealing, normalizing, quenching, and tempering, designed to improve their mechanical properties. These treatments help achieve the required hardness and strength, making NM400 steel more wear-resistant. However, in terms of raw material supply, we typically supply NM400 steel plates in the quenched and tempered (Q+T) condition.
Application of NM 400 Plate
NM400 sheet metal is widely used in fields requiring extremely high durability and abrasion resistance. Due to its ability to withstand extreme conditions and its excellent abrasion resistance, it is commonly used in the manufacture of heavy machinery, mining equipment, and tools. Some typical applications include:
- Wear-resistant spare parts, such as high-efficiency powder selecting wear-resistant parts in cement machinery, mill steel plates, mixer blades, fan blades, mill rollers and so on.
- Various wear-resistant conveying pipes, such as powder air conveying system, blast furnace slag system, propeller blades, etc.
- Customized welding solutions for completing on-site construction projects, such as silos, chutes, large buckets, etc.
- Providing fabrication devices for on-site customized welding repairs to reduce on-site welding workload, such as buckets for work machines and dredging buckets for dredgers.
Why choose us?
GNEE company is committed to the production of high-quality wear-resistant steel plates, in line with international standards, to ensure the excellent quality and stability of products. We use advanced production equipment and strict quality control processes to ensure that every steel plate has excellent wear resistance and reliable performance.We provide：
Official material certification
We can provide complete original material certificates, quality certificates and relevant testing and certifications. All chemical composition and mechanical property data are clearly verifiable. Our qualifications are complete and compliant, and product quality is traceable, fully meeting the requirements for project acceptance and compliant use.
Custom processing and cutting
It supports various processing techniques such as plasma cutting, waterjet cutting, flame cutting, and shearing, and can precisely customize cutting and shaping according to customer drawings and specifications. This effectively reduces subsequent secondary processing steps, significantly shortens the construction cycle, and fully adapts to the supporting needs of mining, construction machinery, and other fields.
Professional Packaging and Transportation
Professional rust-proof and impact-resistant packaging effectively prevents wear, rust, and deformation during transportation. Coupled with stable logistics channels and full-process freight tracking, we ensure the goods are delivered intact and on time.
Our company specializes in wear-resistant steel and specialty steel, maintaining ample inventory and boasting a professional technical and service team. With stable supply capabilities, a strong industry reputation, and a comprehensive after-sales system, we can provide customers with long-term, stable, one-stop procurement services.
FAQ:
1.What is NM400 steel?
NM400: A Chinese-standard wear-resistant steel (NM stands for "Nai Mo," meaning wear-resistant in Chinese), NM400 typically has a Brinell hardness (HBW) of 360–440. It's known for its balance of hardness, toughness, and cost-effectiveness, making it popular in Asia and beyond.
2.Is NM400 steel suitable for heavy machinery manufacturing?
Absolutely. Its high strength and wear resistance make it ideal for such applications.
3.What is the difference between Hardox 500 and NM 500?
Hardness: NM500 typically has a hardness range of around 470-540 HBW (Brinell hardness), while Hardox 500 typically falls within the range of 470-530 HBW. The hardness level indicates their ability to withstand abrasive wear and impact.
4.Is NM 400 better than Hardox 400?
Choose NM400 if you need a cost-effective solution for high-wear applications in construction and mining where budget is a primary concern. Choose Hardox 400 for applications requiring higher impact resistance and durability, especially in colder environments or where structural consistency is key.
5.Are you a manufacturer of NM400 steel plates?
Yes, we supply high-quality NM400 steel plates from top-tier factories.
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