10mm 20mm 40mm Thickness NM400 Wear Steel Plate
Our NM400 wear-resistant steel plates are engineered for exceptional surface hardness and service life in high-abrasion environments. Available in precision‑controlled thicknesses of 10mm, 20mm, and 40mm, these plates offer reliable solutions for mining, construction, earthmoving equipment, and material handling systems.
Key Properties：
- Hardness: 370–430 HBW, providing excellent resistance against sliding and impact abrasion.
- Tensile Strength: ≥1200 MPa, delivering superior toughness without sacrificing formability.
- Low Carbon Equivalent: Ensures good weldability and bendability for fabrication into liners, buckets, chutes, and crushers.
Available Specifications:
| Thickness | Width (customizable) | Length (customizable) | Standard |
|---|---|---|---|
| 10mm | 1500–2500 mm | 3000–12000 mm | GB/T 24186 |
| 20mm | 1500–2500 mm | 3000–12000 mm | EN 10025-6 / ASTM A514 equivalent |
| 40mm | 1500–2500 mm | 3000–12000 mm | (upon request) |
Chemical composition:
| Steel Grade | Thickness mm |
Grade Level | WNM Steel Chemical Composition Wt% | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Mo | Cr | Ni | B | |||
| Max | |||||||||||
| NM 360 | ≤50 | A－E,L | 0.20 | 0.60 | 1.60 | 0.025 | 0.015 | 0.50 | 1.00 | 0.80 | 0.004 |
| 51-100 | A,B | 0.25 | 0.60 | 1.60 | 0.020 | 0.010 | 0.50 | 1.20 | 1.00 | 0.004 | |
| NM 400 | ≤50 | A－E | 0.21 | 0.60 | 1.60 | 0.025 | 0.015 | 0.50 | 1.00 | 0.80 | 0.004 |
| 51-100 | A,B | 0.26 | 0.60 | 1.60 | 0.020 | 0.010 | 0.50 | 1.20 | 1.00 | 0.004 | |
| NM 450 | ≤80 | A－D | 0.26 | 0.70 | 1.60 | 0.025 | 0.015 | 0.50 | 1.50 | 1.00 | 0.004 |
| NM 500 | ≤80 | A－D | 0.30 | 0.70 | 1.60 | 0.025 | 0.015 | 0.50 | 1.50 | 1.00 | 0.004 |
Mechanical Property:
|
Mechanical Properties |
|||||
|
Grade |
Thickness/mm |
Rm/Mpa |
A50/% |
-20℃KV2/Jitudinal) |
HBW |
|
NM360 |
≤80 |
≥1100 |
≥12 |
≥24 |
330-390 |
|
NM400 |
≤80 |
≥1200 |
≥10 |
≥24 |
370-430 |
|
NM450 |
≤80 |
≥1250 |
≥7 |
≥24 |
420-480 |
|
NM500 |
≤70 |
≥1300 |
≥7 |
≥24 |
480-520 |
Advantages for Buyers:
- Longer wear life – Reduces downtime and replacement frequency.
- Cut-to-size & flame/plasma cutting – Available pre‑processed to your drawings.
- Competitive Mill Direct Pricing – No unnecessary intermediaries.
- Fast lead times – Stock supported for sample orders or full containers.
Typical Applications:
- Dump truck liners, excavator buckets, scraper blades
- Chute liners, hoppers, and conveyor components
- Crusher parts and apron feeders
- Cement, steel, and recycling plants
Quality Assurance:
We guarantee that the thickness tolerance of the NM400 wear-resistant steel plates we supply strictly conforms to standards (10mm/20mm/40mm), with a smooth surface free from cracks, delamination, and other defects. Each batch of products undergoes chemical composition, hardness (≥360HBW), and ultrasonic testing to ensure excellent wear resistance and processing toughness. We provide material certificates and support third-party re-inspection, guaranteeing full traceability of quality.
Packaging and shipping
- Standard export packaging (waterproof paper + steel pallets or wooden crates).
- Ship from major Chinese port – shipping documents ready within 7–15 days after deposit.
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 the same as AR400?
No. NM400 and AR400 are both 400 HB-class wear plates, but they are not exactly the same grade or standard.
3.Is NM400 equivalent to AR400?
NM400 may be used as an AR400 alternative in many wear applications, but the MTC and project requirements should be checked first.
4.What is the hardness of NM400 vs AR400?
NM400 is commonly about 370–430 HBW, while AR400 is commonly about 360–444 BHN.
5.Which is better, NM400 or AR400?
Neither is always better. The right choice depends on hardness, toughness, thickness, processing, and project specifications.
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