NM400 AR400 Wear Resistant Steel Plate 8mm
400 represents the Brinell hardness value
Domestic NM400 complies with either GB/T 24186-2022 or the enterprise standards of the steel mill.
Thickness: 5 – 80 millimeters
Width: 1500 – 3800 millimeters
Working temperature: -60℃ to 600℃
Processing support: Equipped with professional cutting equipment, jblstainless can directly provide special-shaped parts (such as wear-resistant pipes, liners)
Wear-resistant steel 400 is a type of high-strength wear-resistant 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 and processability. 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.
| chemical element | NM400 | AR400 |
|---|---|---|
| C | ≤0.30 | 0.12～0.30 |
| Si | ≤0.70 | 0.20～0.80 |
| Mn | ≤1.60 | 0.70～1.60 |
| P | ≤0.025 | ≤0.025 |
| S | ≤0.010 | ≤0.010 |
| Cr | 0.30～1.50 | 0.25～1.50 |
| Ni | 0～1.00 | 0～1.50 |
| Mo | 0.10～0.70 | 0.10～0.60 |
| B | 0.0005～0.005 | 0.0005～0.005 |
| Ti/Nb/V | microalloying | microalloying |
| item | NM400 | AR400 |
|---|---|---|
| CEV | 0.40～0.55 | 0.35～0.60 |
| item | NM400 | AR400 |
|---|---|---|
| Brinell hardness HBW | 360～440 | 360～440 |
| Tensile strength Rm | 1200～1450 MPa | 1200～1500 MPa |
| Yield strength ReH | ≥1000 MPa | 900～1200 MPa |
| Elongation A5 | ≥10% | 10～16% |
| Impact energy (-20℃） | ≥24 J | 20～45 J |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
| Elasticity modulus | 210 GPa | 210 GPa |
| Technology | Temperature |
|---|---|
| Austenitizing | 850～930℃ |
| Quench | Water quenching or oil quenching |
| Temper | 180～250℃ |
| Condition of delivery | Tempering（Q&T） |
Organization:
| Technology | Temperature |
|---|---|
| Austenitizing | 870～930℃ |
| Quench | Water quenching or accelerated cooling |
| Temper | 150～300℃ |
| Condition of delivery | Tempering |
Organization:
| State | Hardness | Strength of extensionMPa |
|---|---|---|
| Original delivery | 400±40 | 1250～1400 |
| Tempering at 200℃ | 380～420 | 1200～1350 |
| Tempering at 300℃ | 340～390 | 1100～1250 |
| Tempering at 500℃ | 250～320 | 850～1050 |
| State | Hardness | Strength of extensionMPa |
|---|---|---|
| Strength of extension | 400±40 | 1200～1500 |
| Tempering at 200℃ | 380～430 | 1200～1400 |
| Tempering at 200℃ | 340～400 | 1100～1300 |
| Tempering at 500℃ | 240～320 | 800～1000 |
NM400 and AR400 can be used interchangeably in most wear-resistant applications.
What circumstances can it be directly replaced?
What circumstances cannot it be directly substituted?
North America (commercial brand)
France, although having similar hardness, thanks to its unique metallurgical design, its wear resistance is usually superior to that of ordinary 400-grade materials.
Finland. Widely used in Europe, its performance is comparable to that of Hardox.
In Germany, German construction machinery is commonly used.
Sweden, internationally recognized as high-end wear-resistant steel with excellent toughness.
1: Low price
The purchase price of NM400 Steel is usually 20% to 50% lower than that of imported brands.
2: The performance can already meet the requirements of most working conditions.
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.
3. Fast domestic delivery speed
The NM400 abrasion resistant steel plate model has a wide range of stock availability, and many specifications can be delivered quickly.
4. Well-developed processing capabilities
Many manufacturing plants have established corresponding process standards and have accumulated rich experience.
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.
| Usage Scenario | Usage Scenario |
|---|
| Mining equiment | NM400 |
| Wear-resistant parts for cement plants | NM400 |
| Port facilities | NM400 |
| Ordinary construction machinery | NM400 |
| High-end mining equipment | Hardox 400、Raex 400、XAR 400 |
| Equipment for export to Europe and America | AR400 or the brand designated by the owner |
| Extremely cold environment | Products with better low-temperature toughness performance such as Hardox 400 and Raex 400 |
Engineering Machinery
Excavator bucket / Loader bucket / Bulldozer blade / Grader scraper / Excavator trench body
Mining Equiment
Crusher liner / chute / funnel / vibrating screen / feeder / conveying trough
Dump trucks, truck cargo compartments
Carriage floor/ side panel/ rear door/ wear-resistant lining plate
Cement Plant Equipment
Cement slurry chute / conveyor belt liner / hopper / fan blade liner / powder classifier wear-resistant parts
Thermal Power Plant
Coal conveying system / Coal discharge pipe / Coal bunker lining / Ash and slag conveying equipment / Wear-resistant components of air-powder pipe
Port and bulk material conveying equipment
Port hopper / Ship unloader hopper / Ship loader hopper / Conveyor belt discharge chute / Bulk material conveying system
Agriculture and Renewable Resources Equipment
Welded steel crusher / Waste disposal equipment / Biomass transportation equipment / Straw shredding equipment
How long can NM400 last?
There is no fixed lifespan. It is 3 to 5 times longer than ordinary Q235 steel plates.
Does NM400 have magnetism?
Yes. It is a low-alloy steel and is ferromagnetic.
Will NM400 rust?
Yes. NM400 is not stainless steel.
Can NM400 be welded?
OK. Use low-hydrogen welding materials and allow the weld to cool slowly after welding.
Can it be bent?
OK. The bending radius should comply with the manufacturer’s recommendation.
Can we drill holes?
OK. CNC machining.
Can it be laser-cut?
OK. Plasma, flame, water jet cutting.
Can the NM400 withstand high temperatures?
Long-term high temperatures will reduce hardness. Recommendation: Use a temperature not exceeding approximately 250℃.
How to determine if the NM400 is qualified?
General inspection: chemical composition, hardness, mechanical properties, dimensional tolerance, ultrasonic testing (UT), material certificate (MTC).
Why do the performances of NM400 from different manufacturers vary?
The steelmaking process, heat treatment, may be different.
Can it be processed to a fixed length?
OK. Support cutting, bending, drilling, beveling, and welding.
Can the NM400 be exported?
OK.
Which types of inspection documents can be provided?
Material Certificate (MTC), Chemical Composition Report, Mechanical Performance Report, Hardness Report, UT Inspection, Third-party Inspection (such as SGS, BV)
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