NM400 AR400 Abrasion Resistant Steel Plate
Wear-resistant steel plates possess high wear resistance and good impact resistance. They can be cut, bent, and welded, and can be used for structural connections such as welding, plug welding, and bolting, facilitating maintenance. They are widely used in industries such as metallurgy, coal, cement, power, glass, mining, building materials, and ceramic tiles. Compared to other materials, wear-resistant steel plates are more expensive, attracting increasing attention from industries and manufacturers across different eras.
What are NM400 and AR400 steel?
Both NM400 and AR400 are high-strength, wear-resistant steels, well-suited for harsh abrasive environments. Therefore, they are commonly used in heavy-duty applications such as dump truck liners, excavator buckets, and crusher components.
- NM400: A Chinese standard wear-resistant steel (NM stands for "wear-resistant"). NM400 typically has a Brinell hardness (HBW) of 360-440. It is known for its balance of hardness, toughness, and cost-effectiveness, making it popular in Asia and other regions.
- AR400: AR400 is a well-known wear-resistant steel with a hardness range of 360–440 HBW. It is a versatile, whole-body hardened alloy steel widely used globally, especially in North America, due to its excellent impact resistance and formability.
NM400 steel plate
| Product Name | Wear Resistant Steel Plate | |||
| Standard: | GB | ASTM | SSAB OXELOSUND | JIS |
| GRADE: |
NM360,NM400,NM450, |
XAR400,XAR450, |
HARDOX400,HARDOX450, |
NK-EH360,JFE-EH400, JFE-EH450,JFE-EH500 |
| Thickness: | 6.0-200mm,etc | |||
| Width : | 1500-4100mm,etc | |||
| Length : | 2000-12000mm,etc | |||
| Standard : | ASTM,AISI,JIS,GB, DIN,EN | |||
| Certification : | ISO, SGS,BV | |||
| price terms : | FOB,CRF,CIF,EXW all acceptable | |||
| Delivery Detail : | inventory About 5-7; custom-made 25-30 | |||
| Loading port : | any port in China | |||
| Packing : | standard export packing (inside:water proof paper,outside:steel covered with strips and pallets) | |||
| Payment Terms : | T/T, L/C at sight,West Union,D/P,D/A,Paypal | |||
| Container size: | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) | |||
| 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) | ||||
| 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) | ||||
Steel grades and chemical composition(MAX, %)
| Element | Typical NM400 (approx.) | Typical AR400 (approx.) |
|---|---|---|
| C | 0.12 – 0.25 wt% | 0.10 – 0.20 wt% |
| Mn | 0.8 – 1.6 wt% | 0.4 – 1.2 wt% |
| Si | 0.2 – 0.8 wt% | 0.1 – 0.5 wt% |
| P | ≤ 0.035 wt% | ≤ 0.03 wt% |
| S | ≤ 0.035 wt% | ≤ 0.03 wt% |
| Cr | trace – 0.4 wt% | trace – 0.4 wt% |
| Ni | trace – 0.5 wt% | trace – 0.5 wt% |
| Mo | trace – 0.2 wt% | trace – 0.2 wt% |
| V | trace – 0.1 wt% | trace – 0.1 wt% |
| Nb (Cb) | trace – 0.05 wt% | trace – 0.05 wt% |
| Ti | trace | trace |
| B | trace (rare) | trace (rare) |
| N | low (mill-controlled) | low (mill-controlled) |
Mechanical properties
| Property | NM400 (approx.) | AR400 (approx.) |
|---|---|---|
| Tensile strength | 900 – 1,200 MPa | 850 – 1,150 MPa |
| Yield strength (0.2% offset) | 700 – 1,000 MPa | 650 – 950 MPa |
| Elongation (A%) | 8 – 18% | 8 – 16% |
| Impact toughness (Charpy V, room temp or -20°C) | Highly variable; often moderate–good depending on processing | Variable; can be lower if chemistry/hardenability higher |
| Hardness (Brinell) | ~360 – 440 HB | ~360 – 440 HB |
Differences in weldability and machinability
- NM400: NM400 is known for its good weldability and machinability, and can be cut, bent, and welded using standard equipment. However, for thicker plates, preheating is recommended (e.g., preheating temperature 75–150°C, depending on the thickness). Carbide tools are recommended for machining, and cutting speeds should be controlled.
- AR400: Compared to harder steels such as AR500, AR400 is easier to weld and machine. AR400F has higher formability, which helps shorten manufacturing cycles and reduce costs. However, care must be taken during welding to avoid problems in the heat-affected zone (HAZ).
Different application focuses
Both types of steel are used in high-abrasion environments, but their advantages differ:
- NM400: Widely used in mining machinery, construction equipment, and port machinery, such as chutes, hoppers, and crusher liners. Its high cost-effectiveness makes it ideal for budget-conscious projects in Asia.
- AR400: Widely used in North American industrial applications, such as dump truck liners, bulldozer blades, and wear strips. Its excellent impact resistance makes it suitable for heavy equipment subjected to repeated impacts.
Why choose us?
GNEE is committed to producing high-quality wear-resistant steel plates that meet international standards, ensuring superior product quality and stability. We employ advanced production equipment and rigorous quality control processes to guarantee that every steel plate possesses excellent wear resistance and reliable performance. We offer:
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 AR400 stronger than AR500?
Here's how it stacks up: AR400 AR500: Due to its higher manganese content, AR500 is about 1.25 times harder (500 HBW) and offers better impact resistance than AR400. However, it is also more brittle, making it less formable. Its strength and corrosion resistance make it best suited for high-impact environments.
3.What is the difference between AR500 and NM500?
AR500: Higher carbon (C: ~0.38–0.45%), chromium (Cr: ~1.5%), and boron (B: 0.0005–0.006%) for enhanced hardness and corrosion resistance . NM500: Lower carbon (C: ≤0.38%), added nickel (Ni: ≤1.0%) and molybdenum (Mo: ≤0.65%) for balanced weldability and toughness.
4.Is AR400 stronger than mild steel?
Its high carbon content, along with its alloy elements make AR400 not only stronger than mild steel, but also maintains moderate machine and formability. The unique characteristics make this the ideal product for construction, material handling, mining, and other abrasion applications, similar to AR500 steel plate.
5.Do you need to preheat AR400 steel?
When welding any hardened wear plate product, ELIMINATE MOISTURE. MINIMIZE HEAT and avoid DRAMATIC TEMPERATURE CHANGE: Preheat the weld area. (In instances where pre-heat is not possible, use of a 309 Stainless Rod may be considered.)
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