Wear-resistant steel plate
Wear-resistant steel plate (also called anti-tear or abrasion-resistant plate) is a metal material designed to withstand extreme conditions of friction, impact and abrasion, far beyond what a conventional plate can handle. It is generally manufactured from special steel with treatments that give it high hardness and a long service life.
Main features of wear-resistant plate
- High hardness
- Measured on the Brinell scale (HB). The most common grades range from 400 to 600 HB, with 400 HB offering a balance between hardness and ease of machining, and 500-600 HB being more resistant but harder to work with.
- Resistance to abrasion and impact
- Withstands wear from friction (stone, minerals, aggregates, scrap metal, etc.) and repeated impacts.
- Durability
- Multiplies service life compared to conventional plates, reducing maintenance and replacement costs.
- Weldability and machining
- Some grades are weldable and can be cut with plasma, oxy-fuel or laser.
- The higher the hardness, the harder it is to machine.
- Format versatility
- Produced in different thicknesses (from 3 mm up to 100 mm or more) and sheet sizes, allowing it to adapt to multiple industries.
Applications of wear-resistant plate
Used in sectors where materials cause high friction or impact. Some examples:
- Mining industry
- Hoppers, crusher liners, chutes, wheel loaders, ore conveyor belts.
- Quarries and aggregates
- Mill liners, screens, conveyors, vibrating feeders.
- Construction and public works
- Excavator blades, bulldozers, graders, dump trucks.
- Recycling and metallurgy
- Scrap shredders, containers, presses.
- Agribusiness
- Harvester hoppers, grain handling equipment, augers.
- Energy and cement plants
- Coal ducts, kilns, raw meal and clinker mills.
References and dimensions of wear-resistant plate
| Property / Plate type | HB400 | HB450 | HB500 |
|---|---|---|---|
| Hardness (HBW) | 370 – 430 (nominal 400) | 425 – 475 (nominal 450) | 470 – 530 (nominal 500) |
| Tensile strength (MPa) | 1000 – 1250 | 1250 – 1450 | 1350 – 1650 |
| Yield strength (MPa) | 900 – 1000 | 1100 – 1200 | 1200 – 1400 |
| Elongation (%) | 12 – 15 % | 8 – 12 % | 7 – 10 % |
| Charpy V toughness (-40 °C) | 30 – 40 J | ≥ 30 J | 20 – 30 J |
| Weldability | Very good (preheating required for high thicknesses) | Good (preheating required >20 mm) | Acceptable, more demanding (preheating and filler control required) |
| Ease of bending/machining | High | Medium | Low |
| Wear resistance | Good | Very good | Excellent |
| Standard thicknesses | 3 – 130 mm | 3 – 80 mm |
3 – 60 mm |
