Steel Wear Plate NM400 NM600
Steel wear plates NM400 and NM600 are widely used abrasion-resistant materials designed to extend equipment life and reduce maintenance costs. The key difference lies in hardness:
- NM400: Standard wear-resistant grade with balanced toughness
NM400 wear plate is widely used in various industrial fields as a kind of high-strength and high wear-resistant steel plate material. Its excellent wear resistance, strength and corrosion resistance meet the needs of different industries. At the same time, its easy processing characteristics also provide convenience for its application in various fields. With the continuous progress of science and technology and the expansion of application fields, NM400 wear-resistant plate will play a more important role in the future.
- NM600: Ultra-high hardness grade for extreme abrasion
The production process of NM600 steel body armor plates mainly includes smelting, continuous casting, rolling and heat treatment. In the smelting process, the use of vacuum induction furnace for melting, to ensure the purity of steel. Continuous casting process, the use of continuous casting machine will cast steel into slabs. In the rolling process, the rolling mill is used to roll the slab into the required thickness and width. Finally, through the heat treatment process, the internal organisation of the steel plate is adjusted to improve its mechanical properties and wear resistance.
At GNEE Steel, we supply both NM400 and NM600 plates with strict quality control, ensuring stable performance across industries such as mining, construction, and cement.
Key Features of NM400 and NM600 Wear Steel Plate
High Wear Resistance
- NM400: 370–430 HBW
- NM600: 570–630 HBW
Strength and Durability
- Both grades offer excellent mechanical strength, allowing them to withstand heavy loads and harsh working environments.
Different Toughness Levels
- NM400: Better impact resistance
- NM600: Lower toughness but superior abrasion resistance
Fabrication Performance
- NM400: Easy to weld, cut, and bend
- NM600: Requires controlled processing (preheating, special welding)
NM400 abrasion resistant steel plate chemical composition
| 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 |
NM600 Armor Ballistic Steel Plate chemical composition
| Grade |
Chemical requirement or element Max % |
||||||||||
|
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Ti |
B |
ALs |
|
NM600 |
0.45 |
0.70 |
1.90 |
0.020 |
0.010 |
1.5 |
1.0 |
0.80 |
0.05 |
0.005- |
0.010 |
NM400 wear steel plate mechanical property
| 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 |
NM600 Steel Armor Plate mechanical property
| Grade |
Property |
Impact test |
HBW |
||
|
NM600 |
Yield Mpa Min |
Tensile Mpa |
Elongation |
Min J |
Min 570 |
|
Thickness mm |
Thickness mm |
Degree |
|||
|
《70mm |
<=60mm |
% |
-20 |
||
|
|
|
|
|
||
NM400 abrasion plate Products Details
NM400 abrasion resistant steel sheet thickness direction performance requirements: Z15, Z25, Z35.
NM400 high wear resistance steel plate flaw detection requirements: one probe, two probe, three probe.
NM400 abrasion resistant metal Density: 7.85/m3.
NM400 wear resistant metal Rational weight formula: thickness * width * length * density.
NM400 steel wear plate material conventional size: 8-80mm * 2000-2500mm * 8000-10000mm
Applications of NM400 vs NM600 Steel Wear Plate
NM400 Applications (General Wear)
- Excavator buckets
- Dump truck bodies
- Conveyor systems
- Construction machinery
NM600 Applications (Extreme Wear)
Mining crushers
Heavy-duty liners
Cement plant chutes
High-abrasion equipment
NM400 vs NM600: Which One Should You Choose?
| Feature | NM400 | NM600 |
|---|---|---|
| Hardness | Medium | Ultra-high |
| Wear Resistance | Good | Excellent |
| Toughness | Higher | Lower |
| Processing | Easy | Difficult |
| Cost | Lower | Higher |
Selection Guide:
- Choose NM400 for cost-effective, general-purpose wear
- Choose NM600 for maximum service life in extreme abrasion
Request a Quote for NM400 NM600 Steel Wear Plate
Looking for reliable NM400 or NM600 wear plates?
GNEE Steel provides:
Competitive pricing
Consistent quality
Fast global delivery
👉 Contact us now for quotation, technical advice, and samples
FAQ
What is the difference between NM400 and NM600 wear plate?
NM400 and NM600 mainly differ in hardness and wear resistance. NM400 offers balanced performance with good toughness and easier processing, while NM600 provides ultra-high hardness and superior abrasion resistance for extreme wear conditions.
What is NM400 wear steel plate used for?
NM400 is widely used in general wear applications such as excavator buckets, dump truck bodies, conveyors, and construction machinery where both wear resistance and impact resistance are required.
What is NM600 steel plate used for?
NM600 is used in extreme abrasion environments like mining crushers, cement plant liners, and heavy-duty chutes where maximum wear resistance and longer service life are critical.
Is NM600 better than NM400?
NM600 is better in terms of wear resistance and lifespan in high-abrasion conditions. However, NM400 is more suitable for applications involving impact and easier fabrication, making it more versatile.
What is the hardness of NM400 and NM600 steel plate?
NM400 typically has a hardness of 370–430 HBW, while NM600 ranges from 570–630 HBW. The higher hardness of NM600 makes it significantly more resistant to wear.
Is NM600 wear plate difficult to weld?
Yes, NM600 is more difficult to weld due to its high hardness. It requires preheating, low-hydrogen electrodes, and controlled cooling to prevent cracking.
Can NM400 and NM600 be cut and processed easily?
NM400 is relatively easy to cut, weld, and bend using standard methods. NM600 requires advanced cutting techniques such as laser or plasma cutting and careful handling during fabrication.
How long does NM600 last compared to NM400?
In high-abrasion environments, NM600 can last significantly longer than NM400, often extending service life by 50% or more depending on working conditions.
How to choose between NM400 and NM600 wear plate?
If your application involves moderate wear and impact, NM400 is the better choice. For extreme abrasion with minimal impact, NM600 is more suitable due to its higher hardness.
Is NM600 wear plate more expensive than NM400?
Yes, NM600 is generally more expensive due to its higher hardness and complex production process. However, it often provides better long-term value by reducing maintenance and replacement costs.
NM400 600 Abrasion Wear Resistant Plate Products image
GNEE group team photo
GNEE group customer visit
GNEE Group participates in foreign steel exhibitions
We have professional staff to provide detailed responses to your orders. If you have any questions about Steel Wear Plate NM400 NM600, please contact me.
Relying on many first-class equipment, such as CNC Shearing machine, Press Brake machine, Straightening machine, Roll Bending machine, Flat Bar Machine, Deburring machine etc, GNEE STEEL could provide various semi-productsand extensive forming services to customers.
GNEE STEEL PROCESSING
1.CTL & SL SERVICE (141 SETS)
Currently, GNEE STEEL has imported manyadvanced CTL/SL equipment from Italy and Korea and could provide customized CTL/SL services from cold rolled stainless steel and carbon steel to hot rolled stainless steel and carbon steel as well as strips and ultra-wide sheet.
CTL FACILITIES
Max Length:16500mm
Max Width:2200mm
Max Thickness:25.4mm
Max Yield Strength:1500Mpa
SL FACILITIES
Max Width:2200mm
Max Thickness:18mm
Max slit Quantity:31
Max Yield Strength:1200Mpa
2.CUTTING SERVICE
GNEE STEEL imported lots of advanced cutting machines from Germany, Sweden, America and Japan, including plasmas cutting machine, water jet cutting machine, laser cutting machine, flame cutting machine and saw machine. In order to meet customers' diversified needs, GNEE STEEL also adopts nest working multi-cutting methods and intensive production to improve production capacity and save costs for the customers.
Laser Cutting Machine
Max Cutting Length:40,000mm
Max Width:4,600mm
Max Thickness:100mm
Flame Cutting Machine
Max Cutting Length:40,000mm
Max Width:8,000mm
Max Thickness:500mm
Plasmas Cutting Machine
Max Cutting Length:30,000mm
Max Width:5,000mm
Max Thickness:100mm
Water-jet Cutting
Max Cutting Length:12,000mm
Max Width:4,010mm
Max Thickness:250mm
3.FORMING SERVICE
Steel Plate Roll Bending
Maximum Rolling Thickness: up to 200mm
Maximum Width: 4200mm
Automatic Bending Machine-Press Brake
Max Bending Capability:3000Ton
Max Bending Length:15,000mm
Expert in Bending High-Strength & Wear-Resistant Steels
Punching Machine
Max Width:3,070mm
Max Thickness:8mm
Max Pressure:250t
BEVELING SERVICE
GNEE STEEL beveling platform has edge milling machine, edge planer, flame / plasma groove cutting machine, flame groove cutting robot, desktop chamfering machine, gantry planerand other advanced equipment to provide customers with parts prefabrication services,daily processing of V-type, Y-type, X-type and U-type grooves, and guarantee subsequent processes such as welding and assembly of products.
Milling：
Max Cutting Length:18,000mm
Max Width:4500mm
Max Thickness:120mm
Beveling:
Max Length:16,000mm
Max Thickness:80mm
MACHINING SERVICE
GNEE STEEL owns CNC Portal-type Boring and Milling machine,CNC Floor-type Boring and Milling machine, Vertical Precision 5-axis Milling Machine, Portal-type Planer, Vertical Lathe, Cylindical Grinding machine, Hydraulic Planer and CNC Lathe and could provide fine machining of large spare parts and structural parts for customers.
Gantry Type Boring & Milling Maching Center
Max Length:48000mm
Max Width:12500mm
Max Height:8000mm
Max Diameter:10500mm
Deep-hole Drilling Equipment
Max Driling Depth:1,100mm
Max Bore Diameter:φ80mm
Max Diametar:φ4,500mm
MMulti-hole Drilling Equipment
Max Length:13,000mm
Max Width:10,000mm
Max Bore Diameter:φ105mm
Max Drilling Depth:250mm
Floor Boring And Milling Machine
Max Length:24,000mm
Max Height:8,000mm
Turntable Dimensions:9x5m
Vertical Lathe
Max Height:6,000mm
Max Diametar:φ22,00mm
Automated Edge Milling Machine
The Automated Edge Milling Machine is a leading product in heavy-duty milling equipment. It is primarily used for weld groove preparation (beveling) on large-format plates made of stainless steel, carbon steel, and special steel grades. It can process plates with a maximum thickness of up to 90mm, a length of 16 meters, and a width of 4 meters.
It is equipped with dual milling units and a fully automatic milling cutter head changing system, enabling automated 4-edge beveling. Its standout feature is the profiling technology used when milling wavy plates and irregularly shaped products, which ensures absolute consistency of the groove after milling.
Utilizing specially designed milling cutter heads, it can execute highly difficult and complex groove profiles in a single pass.
Materials: Plain carbon steel, pressure vessel steel, wear-resistant steel, high-strength steel, stainless steel, nickel-based alloys, etc.
Width: 1200 - 4200 mm
Length: 5800 - 16000 mm
Thickness: 5 - 90 mm
Weight: Up to 35 tons
This edge milling machine is the world's premier automated bevel milling equipment. With its excellent structural design and advanced data algorithms, it achieves full automation from plate detection to the actual milling process, significantly improving processing efficiency while guaranteeing high precision.
- Processing Accuracy
Length accuracy: ±1mm when L < 10m; ±2mm when L > 10m;
Width accuracy: ±1mm;
Diagonal accuracy: ±2mm;
Root face accuracy (blunt edge): ±1mm for Y-grooves; +0.5mm for X-grooves.
- Processing Efficiency
The processing efficiency is more than 10 times that of conventional edge milling or edge planing equipment.
HEAT TREATMENT
Heat Treatment Furnace
Max Furnace Size:36x12x13.5m
Max Rated Temperature:1100℃
Max Loading Capacity:800t
Heat Treatment of Pressure Vessels
Heat Treatment of Mining Equipment
Heat Treatment of Tube Sheet
Heat Treatment of Pressure Vessel Head
Case : Steel Plates Supply for 100,000m³ Full Containment Ammonia Storage Tank Project
GNEE STEEL is currently participating in the procurement phase of a 100,000m³ full containment ammonia storage tank project, supplying high-quality steel plates for critical tank components. Due to the corrosive nature of ammonia and the risk of Ammonia Stress Corrosion Cracking (SCC), the project requires strict metallurgical control of materials according to EN 10028-3 standards.
One of the most important technical requirements of this project is the strict limitation of the actual Yield Strength (Re) for all NL2 grade materials. To prevent SCC risks in ammonia storage environments, the actual yield strength must not exceed 390 MPa, regardless of the nominal values specified in the standard or plate thickness ranges. This requirement places higher demands on steelmaking process control, heat treatment stability, and material testing.
Raw high-strength steel plates ready for the 100,000 m³ full containment ammonia storage tank production
Project Materials and Technical Requirements
The project mainly uses P355NL2 and P275NL2 normalized pressure vessel steel plates, which are widely applied in low-temperature storage tanks due to their excellent toughness and weldability.
Key technical specifications include:
- Material grades: P355NL2 and P275NL2 (Normalized)
- Yield strength: Standard minimum / Maximum limited to 390 MPa
- Hardness: ≤ 225 HBW in base material
- Impact testing: Charpy-V notch test at -50°C, minimum 27J
- Certification: EN 10204 3.1 certificate, with optional 3.2 certification
These strict requirements ensure that the steel plates maintain stable mechanical properties and high resistance to ammonia-induced stress corrosion during long-term operation.
Precision rolling and forming of steel plates into curved sections for the 100,000 m³ ammonia storage tank.
Project Plate Quantities and Thickness Distribution
The total steel demand for this ammonia storage tank project is several thousand tons, mainly distributed across different tank sections:
P355NL2 – Inner & Outer Tank Shell Plates
- Lower shell courses: 50 mm thickness – approx. 2,000 tons
- Middle shell courses: 25 mm thickness – approx. 1,400 tons
- Upper shell courses: 10 mm thickness – approx. 500 tons
P275NL2 – Tank Bottom Plates
- Thickness: 10–15 mm – approx. 750 tons
P275NL2 – Suspended Roof Structure
- Thickness: 5–8 mm – approx. 180 tons
S275JR – Outer Roof (Ambient Structure)
- Thickness: 10 mm – approx. 450 tons
To improve tank fabrication efficiency and reduce circumferential welds, the project also requires wide steel plates to minimize welding joints, which helps reduce the potential risk of SCC in ammonia service conditions.
Formed steel segments wrapped and racked for protection, ready for 100,000 m³ ammonia storage tank assembly.
GNEE STEEL provides high-precision steel plate rolling and cylinder fabrication solutions for tank manufacturers worldwide. Send us your plate specifications or fabrication drawings for a fast quotation.
| TYPE | GRADE | SPECIFICATIONS |
| Carbon Steel / Low Alloy Coil | Q235A/B/C/D/Q355B(Q345B)/C/D/E/SS400/SAPH400-C/ASTMA283Grade C |
0.7~2.0*1250/1500mm*C 2.3~19.5*1250/1500/1800/2000mm*C |
| Medium Heavy Plate | Q235B/Q355B(Q345B)/C/D/E | 6.0-200x150mm-4000mmxL |
| Vessel Plate |
Q245R/Q345R/HP295/SA516MGR485/SA516GR70/P355NL2/P275NL2/ S275JR//SPV490/ASTM A537 Class 1/Class 2 |
2.5-120x1500mm-3000mmxL |
| High Strength Steel |
510L/610L/700L/750L/BS600MCK4/BS700MCK2/BS700MCK4/ BS960E/BWELDY700QL2/L4/BWELDY960QL4/HG60D/70D/785D/ Q460D/Q550D/690D/690E/TQ600MCD/TQ700MCD/S700MCD/ WYS600/700/STRENX700MCE/Q490E/Q490D |
1.2-60x 1500mm-2500mmxL |
| Patterned Steel | HQ235A|B | 1.2-60x 1500mm-2500mmxL |
| Wear-resistance Steel |
NM360/400/450/500/NM300TP/400TP/450TP/ ABREX400/450/500/B-HARD450XKY/ CREUSABRO4800/8000/EH C400LE/450LE/500LE/ |
3.0-50x1250mm-3300mmxL |
| Cold Rolled Coil | DC01/RECC/REDT/SPCC/ST12 | 0.5-3.0x1250mm-1500mmxC |
| Galvanized Plate | DC51D+AZ/DC51D+Z/DX51D+Z/SGH340+Z275/Z275/Z120/S350GD+ZM275 | 0.45-3.0x1250mm-1500mmxC |
| Pickled Coil | DD11/SPHC | 2.0-6.0x1500xC |
Stainless Steel Material and Surface Specifications
| TYPE | GRADE | THICKNESS | SURFACE |
| Austenitic | 304/304H/304L/304J1 | 0.25-150mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 321 | 0.4-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 316/316L/317L/316Ti | 0.3-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 201(J1/J2/J5) | 0.35-12mm | 2B/NO.1/1D |
| Ferrite | 430 | 0.4-3.0mm | 2B/BA/NO.4/8K/SB/HL |
| Ultra Pure Ferrite | 443 | 0.4-2.0mm | 2B |
| Ultra Pure Ferrite | 436L/439/444/441 | 0.5-3.0mm | 2B/2D |
Special Steel / Nickel Base Alloy
| TYPE | GRADE | GRADE (ASTM) | GRADE (EN) | THICKNESS |
| Heat-resistant Steel | 309S | S30908 | 1.4833 | 0.5-40mm |
| Heat-resistant Steel | 310S | S31008 | 1.4845 | 0.5-40mm |
| Duplex Stainless Steel | 2101 | S32101 | 1.4162 | 1.5-50mm |
| Duplex Stainless Steel | 2304 | S32304 | 1.4362 | 3.0-50mm |
| Duplex Stainless Steel | 2205 | S32205/S31803 | 1.4462 | 0.5-60mm |
| Duplex Stainless Steel | 2507 | S32750 | 1.4410 | 1.0-60mm |
| Super Austenitic-Steel | 904L | N08904 | 1.4539 | 0.6-50mm |
| Super Austenitic-Steel | 254SMO | S31254 | 1.4547 | 0.5-50mm |
| Super Austenitic-Steel | 1.4529 | N08926 | 1.4529 | 0.5-50mm |
| Super Austenitic-Steel | AL-6XN | N08367 | 1.4478 | 0.5-50mm |
| Nickel Base Alloy | Alloy 31 | N08031 | 1.4562 | 1.0-50mm |
| Nickel Base Alloy | 800 | N08800 | 1.4876 | 0.8-50mm |
| Nickel Base Alloy | 800H | N08810 | 1.4958 | 0.8-50mm |
| Nickel Base Alloy | 800HT | N08811 | 1.4959 | 0.8-50mm |
| Nickel Base Alloy | Alloy 28 | N08028 | 1.4563 | 1.0-20mm |
| Nickel Base Alloy | Alloy 20 | N08020 | 2.4660 | 1.0-20mm |
| Nickel Base Alloy | 825 | N08825 | 2.4858 | 0.8-40mm |
| Nickel Base Alloy | C276 | N10276 | 2.4819 | 0.5-50mm |
| Nickel Base Alloy | C22 | N06022 | 2.4602 | 1.0-50mm |
| Nickel Base Alloy | 625 | N06625 | 2.4856 | 0.8-20mm |
| Nickel Base Alloy | 400 | N04400 | 2.4360 | 1.0-20mm |
| Nickel Base Alloy | 600 | N06600 | 2.4816 | 1.0-50mm |
| Nickel Base Alloy | Pure Ni 201 | N02201 | 2.4061 | 0.5-20mm |
| Titanium | TA1 | Gr.1 | Class 1 | 0.5-50mm |
| Titanium | TA2 | Gr.2 | Class 2 | 0.5-50mm |
Hot Tags: steel wear plate nm400 nm600, China steel wear plate nm400 nm600 manufacturers, suppliers, factory, manganese abrasion resistant steel, annealed abrasion resistant steel, abrasion resistant steel pins, curved abrasion resistant steel, mining abrasion resistant steel, abrasion resistant steel bar
