Carbon SteelSheet/Plate
Description (English)
16. Description (English) NM450 wear-resistant steel plate is a quenched and tempered abrasion-resistant steel with a nominal Brinell hardness of 450 HBW (range 420-480). Produced to Chinese standard GB/T 24186, it delivers excellent wear resistance with better formability and impact toughness than NM500. NM450 is equivalent to SSAB Hardox 450 at a significantly lower cost. It is the ideal choice for applications requiring a balance of wear resistance and workability, 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 (China) | NM450 |
| SSAB (Sweden) | Hardox 450 |
| JFE Steel (Japan) | JFE-EH450 |
| NKK (Japan) | ABREX 450 |
| ThyssenKrupp (Germany) | XAR 450 |
| Dillinger (Germany) | Dillidur 450 |
| Sumitomo (Japan) | Sumihard K450 |
| ArcelorMittal (EU) | Amstrong 450 |
| Ansteel (China) | AG 450 |
| Baosteel (China) | BS450 |
| Nippon Steel (Japan) | Welten AR450 |
Chemical Composition
| Element | Value |
|---|---|
| C | ≤ 0.26 |
| Si | ≤ 0.70 |
| Mn | ≤ 1.60 |
| P | ≤ 0.025 |
| S | ≤ 0.010 |
| Cr | ≤ 1.50 |
| Mo | ≤ 0.50 |
| Ni | ≤ 1.00 |
| B | ≤ 0.006 |
| Ti | ≤ 0.050 |
| CEV | ≤ 0.60 |
Mechanical Properties
| Property | Value |
|---|---|
| Brinell Hardness (HBW 10/3000) | 420 - 480 |
| Yield Strength (Rp0.2) | ≥ 1200 MPa |
| Ultimate Tensile Strength | ≥ 1450 MPa |
| Elongation (A5) | ≥ 10% |
| Impact Energy (Charpy V, -40°C) | ≥ 25 J |
| Impact Energy (Charpy V, -20°C) | ≥ 35 J |
| Impact Energy (Charpy V, 0°C) | ≥ 45 J |
| Min Bend Radius (Longitudinal) | 3 × Thickness |
| Min Bend Radius (Transverse) | 4 × Thickness |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | - | 7.85 g/cm³ |
| Melting Point | - | 1450 °C |
| Thermal Conductivity (20°C) | - | 40 W/(m·K) |
| Specific Heat (20°C) | - | 470 J/(kg·K) |
| Thermal Expansion (20-100°C) | - | 11.5 µm/(m·°C) |
| Thermal Expansion (20-300°C) | - | 13.0 µm/(m·°C) |
| Electrical Resistivity (20°C) | - | 0.22 µΩ·m |
| Young's Modulus | - | 210 GPa |
| Shear Modulus | - | 81 GPa |
| Poisson's Ratio | - | 0.3 |
Applications
- Mining Equipment
- Dump Trucks
- Construction Machinery
- Quarrying
- Material Handling
- Cement Industry
- Steel Industry
- Agriculture
- Recycling
- Ports & Shipping