400 HB wear-resistant steel plate is designed for applications where components are exposed to severe abrasion, impact, and continuous mechanical wear. Its high hardness provides excellent durability and helps extend the service life of machinery and structural components operating under demanding conditions.
It is commonly used for dump bodies, buckets, hoppers, crushers, conveyors, mining equipment, construction machinery, and material-handling components. The combination of high hardness, strength, and toughness makes 400 HB steel suitable for reducing maintenance and replacement requirements in abrasive environments.
Final chemical, mechanical properties, dimensions and tolerances are confirmed against the governing specification and purchase order.
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | B |
|---|---|---|---|---|---|---|---|---|---|
| Min | - | - | - | - | - | - | - | - | - |
| Max | 0.20 | 0.70 | 1.70 | 0.025 | 0.010 | 1.50 | 1.00 | 0.60 | 0.005 |
| Property | Yield Strength | Tensile Strength | Elongation | Hardness | Impact Toughness |
|---|---|---|---|---|---|
| Min | 1000 MPa | 1250 MPa | 10% | 370 HB | - |
| Max | - | 1500 MPa | - | 430 HB | - |
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