Description (English)
NM400 wear-resistant steel plate is a quenched and tempered abrasion-resistant steel with a nominal Brinell hardness of 400 HBW (range 360-420). Produced to Chinese standard GB/T 24186, it is the most widely used wear-resistant steel grade, offering excellent abrasion resistance combined with superior formability, weldability, and impact toughness. NM400 is equivalent to SSAB Hardox 400 at a significantly lower cost. It is the ideal choice for moderate to high wear applications requiring fabrication, including excavator buckets, dump truck bodies, bulldozer blades, crusher liners, chutes, and hoppers across mining, construction, cement, and material handling industries. Available in thicknesses from 3mm to 120mm with custom cutting services.
Size Range
- Thk:3-120mm
- Wid:1000-3350mm
- L:3000-12000mm
Grade Specification
| System | Value |
|---|---|
| GB/T 24186 | NM400 |
| SSAB | Hardox 400 |
| Germany | XAR400 |
Chemical Composition
| Element | Value |
|---|---|
| C | ≤ 0.22 |
| Si | ≤ 0.70 |
| Mn | ≤ 1.60 |
| P | ≤ 0.025 |
| S | ≤ 0.010 |
| Cr | ≤ 1.50 |
| Mn | ≤ 0.50 |
| B | ≤ 0.006 |
| Ni | ≤ 1.0 |
| Ti | ≤ 0.050 |
| CEV | ≤ 0.55 |
Mechanical Properties
| Property | Value |
|---|---|
| Brinell Hardness (HBW 10/3000) | 360 - 420 |
| Yield Strength (Rp0.2) | ≥ 1000 MPa |
| Ultimate Tensile Strength | ≥ 1250 MPa |
| Elongation (A5) | ≥ 12% |
| Impact Energy (Charpy V, -40°C) | ≥ 30 J |
| Impact Energy (Charpy V, -20°C) | ≥ 40 J |
| Impact Energy (Charpy V, 0°C) | ≥ 50 J |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | - | 7.85g/cm3 |
Applications
- mining equipment
- dump trucks
- construction machinery
- quaarying
- material handling
- cement industry
- steel industry
- agriculture
- recycling
- ports and shipping